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Reedsport� _ � ,�, �r= . .k w1 �1� 1� # ` - � � � � # � � ; =� ,i., �` - �� _, — :$ :.�� = � ��n Prepared for City of Reedsport Reedsport, Oregon �� s �? �_ s � � � . � �� _ . � � ;1� ,.Ig .� � _ �� ;� � � y � �'� '� Prepared by Pacific Habitat Services, Inc. Wilsonville, Oregon (503) 570-0800 ��m. �� d � ��:,:,r�� , � � � � . ��, . �— _. APPf?��IED �P�IEI 6�l�/��! ( UR� Mazch 10, 1999 ��- �s•��o� �i•�isi�� u7` �i�'t� L�;�r�s ,� EG't5 �"�_l._.w____� �'tc� � i f� 16"C� a ��%�� F1p;��'oV�t1 oy l fc�.....-- � {,.� ., S '•,p Pa�e , ,I ; •' � � , � 1 .1 Report Format .........................................................................................................1 2.0 DEFINITIOI�TS ................................................................................................................2 � ��r� ;�� ,� � ,; �� e�,� ; 3 .1 Public Involvement .................................................................................................8 3.2 Local Wetlands Inventory Methodology ................................................................9 3.2.1 Routine Off-site Determination ..................................................................9 3.2.2 Routine On-site Determination ..................................................................9 3.3 Wetland QualiTy Assessment ..................................................................................9 3.3.1 The Oregon Freshwater Assessment Methodology ....................................9 3.3.2 Wetlands of Special Interest for Protection ..............................................11 3 .3.3 Field Methodology ...................................................................................11 3.3.4 Office Assessment ....................................................................................1 l 3 .4 Riparian Inventory ................................................................................................12 ' 3.4.1 Urban Riparian Inventory and Assessment Guide ...................................12 � ' 3.4.2 Riparian Assessment ................................................................................13 3.4.3 Riparian Functions ...................................................................................13 4 .0 CAIt'I'OG12AI'� .........................................................a...........................e.....a........e.o.el4 5.0 S'I'iJDY AI2EA CHAI2ACTEI2IS'TICS ..............................a.................................e......15 5 .1 Setting ..................................................................................................................15 5.1.1 Culture and Industry .................................................................................15 5 .2 Topography ..........................................................................................................16 5.3 Hydrology .............................................................................................................16 � 5.3.1 i-Iydrologic Features of the Reedsport Study Area ...................................16 5.3.2 Hydrologic Basin Designation .................................................................17 5.3.3 Hydrologic Indicators ...............................................................................18 5.4 Soiis ..................................................................................................................18 5.5 Vegetation ............................................................................................................20 5.5.1 Overview ..................................................................................................20 5.5.2 Local Vegetation Communities ................................................................20 5.5.3 Wetland and Upland Indicator Species ....................................................23 . , � �: ; i r Pa�e 6.0 I.,WI DISCIJSSION 1�N1) COlVCI,ITSIOl�1S ...............................................................23 6.1 U.S. Fish & Wildlife Service National Wetland Inventory Areas 6.2 Local Wetland Inventory Results ................................................. 6.2.1 Wetland Acreage and Distribution ................................... 6.2.2 Wetland Ciassification ..................................................... 6.3 Oregon Freshwater Wetland Assessment Methodology Results.. 6.3.1 Wetland Quality Assessment ............................................ 6.3.2 Wetlands of Speciai Interest for Protection ...................... ............... ............... ............... ............... ............... ............... ............... ...23 ...24 ...24 ...24 ...27 ...27 ...33 7.0 SIGNIFICA.N'T �3'�'I'I,ANI)S I)ETERIVIINA'�'IOlV ..................................................33 7.1. Goal 17 Coastal Shorelands Plaruiing Area ..........................................................33 7.2 Locally Significant Wetlands Criteria ..................................................................34 7.3 Applying Significant Wetland Criteria to the LWI Study Area ...........................35 7.3.1 Goal 5 Significant Wetlands .....................................................................35 8.0 1ZIP�RIAN INVEl�1'I'OIZY I2ESLTL'I'5 ........................................................................35 8.1 Riparian Acreage and Distribution .......................................................................35 � 8.2 Riparian Assessment Results ................................................................................37 9.0 I'l�O.TECT SiJIVIMAI�Y ........................a..................................................a..............e.....40 10 .0 �F'EI2ENCES............a..e....e ..................e.ee.........................o................o........................41 .•• � . •" � : . •• � •'• � � .•• � . •• � . •• � , Wetland Characterization Sheets Wetland Determination Data Forms OFWAM Data and Results Significant Wetland Determination Sheets iliparian Data Forms Riparian Assessment Resuits Plant List ;' : � .. . Pa�e Table 1. Hydrologic Basins and Acreages for the City of Reedsport Local Wetlands and Riparian Inventories ........................................................17 Table 2. Soil Mapped within Reedsport LWI Study Area .................................................18 Table 3. Wetland Indicator Cades and Status .....................................................................23 Table 4. Wetland Areas within Each Basin for the Reedsport LWI ...................................24 Table 5. Types of Wetlands within Each Basin for the Reedsport LWI ............................24 Table 6. Table 7. Table 8. 1 Table 9. Types of Wetlands within the Reedsport LWI Study Area ..................................25 Cowardin Classification of all Wetlands Identified in the Reedsport LWI..........25 Key to the Oregon Freshwater Wetland Assessment Methodology Numerical Raniting ..........................................................................................29 Oregon Freshwater Wetland Assessment Methodology Numerical Ranking Results for the Reedsport Local Wetlands Inventory ......................................30 Table 10. Study Area Wetlands under Goai 16 Estuarine Resources ...................................33 Table l 1. Criteria for Determining Locally Significant Wetlands .......................................34 Table 12. Goal 5 Wetlands in the Reedsport LWI ...............................................................35 Table 13. Riparian Acreage ..................................................................................................36 Tabie 14. Summary of Reedsport's Riparian Functional Assessments ................................38 � 1.0 INTRODUCTION The City of Reedsport (CITY) hired Pacific Habitat Services, Tnc. (PHS) to conduct a Local Wetlands Inventory (LWI) for an appro�cimately 3,000-acre study area located within the City's Urban Growth Boundary, including lands both north and south of Highway 101. The goal of the study is to address the requirements of Statewide Planning Goa15 (Natural Resources, Scenic and Historic Areas, and Open Spaces), and Goal 17 (Coastal Shorelands) Oregon Administrative Rule (OAR) Section 660, Division 23. Goal 16 (Estuarine Resources) also applies to portions of the study area. The objective af Goal 5 is to "protect natural resources and conserve scenic, historic and open space resources for present anti future generations." Goal 17 specifically addresses coastal shorelands. It is intended "to conserve, protect, where appropriate, develop and where appropriate restore the resources and benefits of all coastal shorelands, recogzuzing their value for protection and maintenance of water quality, fish and wildlife habitat, water- dependent uses, economic resources and recreation and aesthetics." Goal 17 applies to an area called the coastal shorelands planning area, which is generally all lands bordering the ocean, estuaries, and coastallakes and lands west of Highway 101. Goal 16 is intended to "recognize and protect the unique environmental, economic, and social values of each estuary and associated wetlands". Specifically, the CITY hired PHS to determine the location and extent of wetlands; determine Goa15 and Goal 17 wetlands; assess the quality of the wetlands; and determine which of the Goa15 wetlands are significant according to state admirvistrative rules (OAR 141-86-AAA). PHS was also hired to inventory and assess the quality of riparian areas within the study area. This report presents the results of both the wetlands and the riparian inventories. PHS is a private environmental consulting company with expertise in wetland delineations, wetland quality assessments, the determination of significant wetlands and conducting LWIs. The study area is located in the rugged coastal area of Douglas County, approximately 11 miles upstream from the mouth of the Umpqua River (Townslup 21, Range 12 West, Sections 21, 27, 28, 33 and 34; and Township 22 South, Range 12 West, Section 4, Willarnette Meridian). In addition to the Umpqua River, two perennial streams, Scholfield Creek and Providence Creek, are within the study area, Figure 1 illustrates the Iocation and general topography of the study area. 1.1 Report Format Ttus report begins by discusszng the definitions used in the report and inventory (Section 2), followed by ths methodology used to conduct the field work for the LWI and the riparian inventory, the wetland and riparian assessment methodology, and the methodology used to produce the maps for the inventory (Section 3). Section 4 discusses the project cartography and Section 5 presents the study area characteristics, such as the climate, topography, soils and vegetation. Sectian 6 discusses the Local Wetlands Inventory results, including wetland distribution, acreage, and Cowardin classification. This section also ineludes the results of the Oregon Freshwater Wetland Assessment Methodology. Section 7 presents the significant Ciry of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 1 - � ' �-, : : ' ` , '' i _ � 1 a�l �; U �. i - __ ' r��, �L d. 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" %i` �,�� C ";� p � f ��I��ir�t.�t 11�1� �� ' � ��- - - _ -- � SCALE in FEET ��'� , , i r° _ 1 � __. � � �, ,`-'� � . �-r Project limits and topography for the Reedsport Local Wetlands and Riparian Inventories (U.S.G.S., Reedsport and Winchester Bay 7.5 min. quadrangles, 1985 provisional editions). PHS s FIG. 1 wetlands in the project area. Section 8 provides the resuits of the riparian inventory and assessment results, and Section 9 summarizes the project. Section 10 provides a Iist of the references used in the report. There are seven appendices to the report. Appendix A contains the wetland characterization forms for each wetland, organized by wetland code. The characterization sheets note wetland location, ta�c lots, acreage, Cowardin classification, soil series, wetland vegetation, adjacent up�and vegetation, and other notes related to adjacent wetlands or hydrology. This form was completed for each wetland unit, regardless of whether it was an on-site or off-site determination. If it was an on-site determination, sample point numbers are noted. Locally significant wetlands are also noted on the characterization form. Appendix B contains the wetland determination data forms. These forms document the sample points taken for the on-site wetlands and adjacent uplands. Hydrology, soils, and dominant vegetation are recorded for each sample point in order to determine whether it is wetland or upland. Appendix C is the Oregon Freshwater Wetland Assessment Methodology data and summary for each wetland unit. Each wetland's functions and conditions are assessed according to an established state methodology. The results and rationale are also summarized for each wetland unit. Appendix D contains the determinatian of significance for each wetland unit. Appendix E contains the riparian characteriza.tion and riparian width forms and Appendix F contains the riparian assessment. Appendix G contains a listing of plant species encountered or expected within the project area. 2.0 DEFINZTIONS These terms helped define the methodology used for the City of Reedsport Locai Wetlands Inventory and may be referred to in this report. 19$7 Manual The Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-I (Environmental Laboratory 1987). This manual is used by the Corps and DSL to document the location of wetlands within the State of Oregon. The 19$7 manual provides technical criteria, field indicators, and recomrnended procedures to be used in determining whether an area is a jurisdictional wetland. Undisturbed areas require three criteria for them to be classified as wetland. These criteria are hydric soils, a dominance of hydrophytic vegetation, and wetland hydrology. City of Reedsport Loca1 Wetlands Inventory ancl Riparian Inventory Page - 2 - Estuarine System All tidal wetlands dominated by trees, shrubs, persistent emergents, emergent mosses or lichens and all such wetlands that occur in tidal areas where salinity is greater than 0.5%. This includes areas traditionally called swamps, marshes, fens, as well as shallow, permanent or intermittent water bodies called ponds. • Emergent Wetland (EEIVn These wetlands have rooted herbaceous vegetation which stand erect above the water or ground surface. • Scrub-shrub Wetland (ESS) Wetlands dominated by shrubs and tree saplings that are less than 20 feet high. • Forested Wetland (EF�) Wetlands dominated by trees that are greater than 20 feet high. Goal 5 Goal S(OAR 660, Division 23) is intended "to protect natural resources, and conserve scenic and histaric areas and open spaces. " Goa116 Goa116 is intended "to recognize and protect the unique environmental, economic, and social vadues of each esfuary and associated wetdands; and to protect, maintain, where appropriate develop, and where appropriate restore the long-term environmental, economic, and social values, diversity and benefits of Oregon's estuaries. " Goal 16 estuarine resources are designated in the City of Reedsport Comprehensive Plan. Although wetlands designated as estuarine resources are included in the Locai Wetlands Inventory they are not included in the wetland quality assessment. Goal 17 Goal 17 specifically addresses coastal shorelands. It is intended "to conserve, protect, where appropriate, develop and where appropriate restore the resouf-ces and benefits of all coastal shorelands, recognizing their value for protection and maintenance of water quality, fish and wildlife habitat, water-dependent uses, economic resources and recreation and aesthetics. " City of �evdsport Local Wetlands Irrventory and Riparian Inventory Page - 3 - Goal 17 appiies to an area called the coastal shorelands planning area defined in the goal, which is generally aII lands bordering the ocean, estuaries; and coastal lakes. Coastal shorelands include "natural or man-made riparian resources, esp�cially veg�tation necessary to stabilize the shoreiine and to maintain water quality and temperature necessary for the maintenance of fish habita.t and spawning areas." Coastal jurisdictions must inventory or identify coastal shorelands, including riparian resources. Growing Season The portion of the year when soil temperatures at 19. 7 inches below the soil surface are higher than baological zero (41 ° Fahrenheit, S� Celsius}. The growing season for any given site or location is determined from Natural Resource Conservation Service (NRCS, formerly the U.S. Soil Conservation Service SCS) data and information. The length of the season can be approximated from frost free days, based on air temperature. Hydric Soils Soils which are ponded, flooded, or saturated for long enough during the growing season to develop anaerobic conditions. Periodic saturation of soils causes alternation of reduced and oxidized conditions which leads to the formation of redoximorphic features (gleying and mottling). � Mineral hydric soils wi11 be either gleyed or will ha�e bright mottles and/or low matrix chroma. The redoximorphic feature known as gley is a result of greatiy reduced soil conditions which result in a characteristic grayish, bluish or greenish soil color. The term mottling is used to describe areas of contrasting color within a soil matrix. The soil matrix is the portion of the soil Iayer that has the predominant color. Soils which have brightly colored mottles and a low matrix chroma are indicative of a fluctuating water table. Hydric soil indicators include: organic content of greater than 50% by volume, sulf dic material or "rotten egg" smell, and/or presence of redoximqrphic features and dark soil matrix, as determined by the use of a Munsell Soil Color Chart. This chart esta.blishes the chroma, value and hue of soils based on comparison with color chips. Mineral hydric soils usually have a matrix cYiroma of 2 or less in mottled soils, or a matrix chroma of 1 or less in unmottled soils. City of Reedsport Local Wetlands Inventory and Riparian 1'nventory Page - 4 - Hydrophytic Vegetation Plant life growing in water or on a substrate that is at least periodically defrcient in oxygen as a result of ezcessive water content. T'he U.S. Fish and Wildlife Service, in the National List af Plant Species that Occur in Wetlands, has established five basic groups of vegetation based on their frequency of occurrence in wetlands. These categories, referred to as the "wetland indicator status," are as follows: obligate wetland plants (OBL), facultative wetland (FACUV}, facultative (FAC}, facuitative upland (FACU), and obligate upland (UPL). Local Wetlands Inventory (LWI} An inventory of all wetlands greater than 0. S acres in size within a local jurisdiction using the standards and procedures of OAR 141-86-110 through 141-86-240. In 1989, the Oregon state legislature authorized DSL to develop a statewide wetiands inventory for planning and regulatory purposes. Accordingly, DSL established Local Wetlands Inventory (LWI) standards and guidelines under ORS 196.674. An approved LWI replaces the National Wetlands Inventory maps and is incorporated into the statewide wetlands inventory. An LWI is conducted using color or color infrared aerial photographs taken within 5 years of the inventory initiation and at a minimum scale of 1 inch = 400 feet (1" = 400'). Wetlands are located using the on-site option where access to property is allowed, or off-site where access is denied. Wetlands can be mapped off-site by, using information such as topographic and National Wetlands Inventory maps, aerial phatographs, and soils surveys. The approximate location of wetlands is placed on a parcel-based map. The parcel- based rnap allows the property owner, the local jurisdiction, and DSL, to know which ta�c lots may contain wetlands. The maps and documents produced for the LWI are intended for planning purposes only. Mapped wetland boundaries are accurate to within 25 feet; however, there may be unmapped wetlands that aze subject to regulation. In a�l cases, actual field conditions determine wetland boundaries. Palustrine System All nontidal wetlands dominated by trees, shrubs, persistent emergents, emergent mosses or lichens and all such wetlands that occur in tidal areas where salinity is less than 0.5%. This includes areas traditionally called swamps, marshes, fens, as well as shallow, permanent or intermittent water bodies called ponds. City of Reedsport Local Wetlands Irrventory and Riparian Inventory Page - S - • Open water (POV� A wetland class consisting of areas of water less than 6. 6 feet deep, unvegetated, with an unknown substrate. • Aquatic bed (PAB) A wetland class consisting of areas of water less than 6.6 feet deep, with over 30% aerial coverage by predominantly nonvascular plant species (i.e. macrophytic algae, mosses, or lichens) growing in water or on shoreline splash zones. • Emergent Wetland (PE1Vn These wetlands have rooted herbaceous vegetation which stand erect above the water or ground surface. • Scrub-shrub Wetland (PSS) Wetlands dominated by shrubs and tree saplings that are less than 20 feet high. • Forested Wetland (PFO) Wetlands dominated by trees that are greater than 20 feet high. Riparian Area The area immediately adjacent to a water resource, which affects or is affected�by the water resource. Riparian areas do not include the water resource itself. Riparian Assessment Determining the relative qualiry of a riparian area by assessing its functions. An evaluation of the ability of the riparian area to provide water quality, flood management, thermal regulation, and wildlife habitat functions. The methodology generaliy used to determine the relative quatity of riparian areas for purposes of ari inventory is The Urban Riparian Inventory and Assessment Guide (PHS, 1998). Riparian Function A characteristic action or role provided by riparian areas, such as water quality; flood management; thermal regulation; and wildlife habitat. City of Reedsport Loca! Wetlands Inventory and Riparian Iriventory Page - 6 - Riparian Inventory An inventory of location and extent of riparian areas within the boundaries of the Local Wetlands Inventory using "The Urban Riparian Inventory and Assessment Guide ". Waters of the State Natural waterways including all tidal and nontidal bays, intermittent streams, constantly flowing streams, lakes, wetlands and other bodies of water in this state, navigable and nonnavigable. Natural waterways are defined as: waterways created naturally by geological and hydrological processes, and waterways that would be natural but for human-caused disturbances (e.g. channelized or culverted streams, impounded waters, partially drained wetlands or ponds created in wetlands). Water Resource f1n intermittent or perennial stream, pond, river, lake and including their adjacent wetlands. Wetland Those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation rypically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. (Federal Register 1982). � Wetland Assessment Determining the relative quality of a wetland by assessing its functions and conditions. The methodoiogy generally used to determine the relative quality of wetlands for purposes of an LWI is the Oregon Freshwater Wetland Assessment Methodology (Roth, et. al. 1996). Wetland Classification The classification of wetlands as defined by plants, soils and the freguency of flooding is described in "Classification af wetlands and deepwater habitats of the United States" (Cowardin, et. al. 1979). See Palustrine System and Estuarine System. City of Reedsporl Local Wetlands Irrventory and Riparian Imentory Page - 7 - Wettand Condition The integriry of a wetland's physical and biological structure. This determines the ability of the wetland to perform specific functions, as well as its resilience and enhancement opportunities (Roth et al., 1996). Wettand Function A characteristic action or behavior associated with a wetland that contributes to a larger ecological condition such as wildlife habitat, water quality and/or flood control (Roth, et. al. 1996). Wetland Hydrology Permanent or periodic inundation or prolonged soil saturation sufficient to create anaerobic conditions in the upper soil prof le. Wetland hydrology is related to duration of saturation, frequency of saturation, and critical depth of saturation. The 1987 manual defines wetland hydrology as inundation or saturation within a major portion of the root zone (usually above 12 inches), typically for at least 12.5°10 of the growing season. The wetland hydrology criterion can be met, however, if saturation within the major portion of the root zone is present for only 5% of the growing season, depending on other evidence. Wetlands Regulation Wetlands in Oregon are regulated by the Division of State Lands (DSL) under the Removal-Fill Law (ORS 196.800-196.990) and by the U. S. Army Corps of Engineers (Corps) through Section 404 of the Clean Water Act. 3.0 PROJECT METHODOLOGY 3.1 Public Involvement Prior to beginning the inventory, the City of Reedsport mailed notices to selected landowners who may have wetlands on their property. Landowners who had areas of mapped hydric soils, soils with hydric inclusions, National Wetlands Inventory mapped wetlands, or suspected wetland areas received a notice of permission for site access. Landowners were requested to mark a box on the access notice, either granting site access, denying site access, or granting access by appointment. If there was no response, individual landowners were contacted directly by either the CITY or PHS. Access information was then transferred to the base map for use in the field. City of Reedsport Loca! Wetlands Inventory and Riparian Inventory Page - $ - Two public meetings were held during the course of the inventory. The first meeting was held on July 21, 1997, to introduce the project to the residents of Reedsport. This meeting was held prior to the date required for return of the access request letters to answer any questions affected landowners may have for representatives of the CITY, PHS, or DSL. The second public meeting was held on Maxch 9, 1998, to present the draft results of the wetland inventory to the City Planning Commission and residents of Reedsport. Changes made to the maps at the public meeting and verified in the field, will appeaz on the fmal version of the maps following agency review of the draft products. 3.2 Local Wetlands Inventory Methodology 3.2.1 Routine Off-site Determination Prior to beginning field work, off-site mapping was conducted to determine the approximate location of wetland boundaries based on available information. This information included the USGS topographic quadrangles, the draft Soil Survey of Douglas County, Oregon (NRCS, 1998), the National Wetlands Inventory maps, and true color aerial photographs (WAC, July l, 1996; 1"=400'). If access was allowed, the wetland boundaries were verified in the field (see Section 3.2.2). If access was not granted, the boundaries were based on the mapping conducted in the office, and on observation of wetland boundaries from adjacent roads, properties, or water bodies. 3.2.2 Routine On-site Determination Where property access permission had been granted, on-site observation and inspection of soils, vegetation, and hydrology were made using the Routine On-site method of the 1987 manual. Soil pits were excavated up to a depth of approximately 18-inches in selected locations. The soil profiles were examined for hydric soils and wetland hydrology field indicators. A visual percent-cover estimate of the dominant species of the plant community for a maximum 30-foot radius was conducted at each sampling location. Sampling locations were chosen to document a change in the wetland boundary and a particular plant community. Data was recorded in the field and transfened to computer-generated wetland delineation data sheets (Appendix B). Field work for the inventory was conducted 6etween September 1997 and January 1998. No wetland boundaries were staked or flagged in the field. 3.3 Wetland Quality Assessment 3.3.1 The Oregon Freshwater Wetland Assessment Methodology The quality of wetlands in the study area was assessed using the Oregon Freshwater Wetland Assessment Methodology (OFWAM) (Roth et al. 1996). OFWAM was developed by an City of Reedsport Local Wetlands Inventory and Riparian Irrventory Page - 9 - interagency committee to assess the relative quality of wetlands primarily for planning and educational purposes. Copies of t12e methodology are available from DSL for a fee. OFWAM does not assign a numeric ranking to the wetlands, but does determine the relative quality of six functions and three conditions for each of the wetlands. A description of each of the functions and conditions is included below. Wetland Functions Wildlife habitat: Evaluates the habitat diversity for species usually associated with wetlands, without emphasizing one particular species. Wetlands assessed by OFWAM can provide diverse habitat for wildlife, habitat for some wildlife species, or does not provide habitat. Fish habitat: Evaluates how a wetland contributes to fish habitat in streams, ponds or lakes associated with a wetland. The questions are suitable for both warmwater and coldwater fish and no particular species is emphasized. Wetlands assessed by OFWAM can have fish habitat function inta.ct, impacted or degraded, or lost or not present. Water Quality: Evaluates the potential of a wetland to reduce the impacts of excess nutrients in storm water runoff on downstream waters. A wetland's water quality function can be assessed by OFWAM as intact, impacted or degraded, or lost or not present. Hydrologic control: Evaluates the effectiveness of a wetland to reduce downstream flood peaks and store floodwaters. A wetland's hydrologic control functions can be assessed by OFWAM as intact, impacted or degraded, or lost or not present. Education: Evaluates the suitability of a wetland to provide educational opportunity and act as an"outdoor classroom." A wetland assessed by OFWAM can have educational uses, have the potential to provide, or not be appropriate for educational uses. Recreation: Evaluates the suitability of a wetland and associated watercourses for non- powered boating, fishing, and similar recreational activities. A wetland assessed by OFWAM can provide, have the potential to provide, or not provide recreational opportunities. Wettand Conditions Sensitivity to Future Impacts: Evaluates the wetland's ability to sustain itself and its ability to recover from future impacts. It is an indication of risk to the wetland because of future changes in the watershed and surrounding land. A wetland can be assessed by OFWAM as sensitive to future impacts, potentially sensitive to future impacts, or not sensitive to future impacts. An undisturbed forested wetland is more sensitive to future impact than a wetland which has already been disturbed, such as agricultural wetland. Enhancement Potential: Evaluates the suitability of a degraded wetland for enhancement. A wetland providing this condition does not provide one or more of the functions assessed by OFWAM. A wetland fulfilling this condition, therefore, would be of lower overall quality City of Reedsport Loca! Wetlands lnventory and Riparian Inventory Page - 10 - than a wetland providing wildlife habitat, fish habitat, etc. Wetlands which provide diverse wildlife habitat were not assessed in this section, as per the revised OFWAM. Wetlands are assessed as either high enhancement potential, moderate enhancement potential, or little enhancement potential. Aesthetic quality: Evaluates the visual and aesthetic quality of the wetland. Wetlands can be considered pleasing, moderately pleasing, or not pleasing. 3.3.2 Wetlands of Special Interest for Protection The first filter in OFWAM is to determine whether the wetland is in a management plan, is protected by regulatory rules or statutes, or is uncommon in Oregon. Ten questions are answered for each wetland and a"yes" answer to any of the questions puts the wetland into the "special interest for protection" category. If the wetland falls into this category, it is noted on the wetland characterization sheet. 3.3.3 Field Methodology During the process of determining the boundaries for the LWI, data were also collected for the process of determining its relative quality. Data collected for this purpose are explained in the Wetland Characterization section of OFWAM. Data collected in the field included the Cowardin classes, the types of disturbance (if any) in the wetland area, the hydrology of the wetland area (e.g. the location of constrictions), the presence of fish, large woody debris, the degree of vegetative cover, and other information necessary to complete the assessment of the wetland in the office. If the wetland determination was off-site, the OFWAM section and wetland characterization was based on review of the aerial photographs and knowledge of other similar or adjacent wetlands. 3.3.4 Office Assessment Subsequent to the field work, the data collected for each wetland were used to answer questions for each function and condition. Additional information on the wetlands, the landscape and the general area were gathered in the office. The answers within each function and condition section of the methodology were entered into a computer spreadsheet, which automatically displays the results of the assessment m.ethodology. Prior to starting the OFWAM assessment certain criteria or baseline information was established. The following is a list of the criteria used in answering the questions: The Oregon Department of Environmental Quality has not mapped any of the creeks in the study area as water quality limited (ODEQ, 1996). This information was used in the following questions in OFWAM: Wildlife, question 7; Fish Habitat, question 4; Water Quatity, question 6; and Sensitivity to Future Impacts, question 3. City of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 11 - Oregon Department of Fish and Wildlife (ODFV� has inventoried anadromous fish (e.g. coho and chinook) in Scholfield Creek and the Umpqua River (ODFW, pers. comm.). Due to the presence of a tide gate at the mouth of Providence Creek, no anadromous fish were considered to be present upstream, however other species of concern, such as resident cutthroat trout, aze likely to be present. This information was used in Fish Habitat, question 6. The enhancement potential section was not required if the wetland was assessed with "diverse wildlife habitat", as per OFWAM directive. In addition, question 3 was specifically directed towards wetlands whose primary source of hydrology was surface water. If this was not the case, question 3 was not answered. 3.4 Riparian Inventory 3.4.1 Urban Riparian Inventory and Assessment Guide The Urban Riparian Inventory and Assessment Guide (Riparian Guide) was used for the Reedsport riparian inventory. The Riparian Guide depends on a combination of best available knowledge, field observations, and best professional judgment. The methodology is comprised of the riparian inventory and the riparian assessment. The riparian inventory involves gathering and assimilating information pertinent to the project site, developing a base map, and completing the Riparian Characterization Form. The guide was designed to work in conjunction with the LWI and relies on the same aerial photograph or base map. In addition, coding of the riparian areas is based on hydrologic basins, reflecting the coding system established for the LWI. The inventory portion of the Guide depends on the completion of a Riparian Characterization Form and Riparian Width Determination Form. A completed Riparian Characterization Form provides information on the physical and biological characteristics of the riparian area, such as vegetation, slope, adjacent land uses, and degree of disturbance. Most of the form was completed on-site, provided access was allowed. However, some portions, such as the mapped soil series, were completed in the office. The questions are answered separately for the riparian areas on both sides of a stream. The riparian width is measured from the edge of the water resource, typically either the top of a streambank or the outer edge of a wetland, lake, or pond. Riparian areas on both sides of a stream channel are assigned separate widths. Right and left widths aze not combined and do not include the channel. The riparian width is based on the dominant riparian tree species within 100 feet of the water resource. The height of the dominant tree species at maturity will be used as a distance to define the outer riparian boundary. The height of this tree species at maturity is called the potential tree height (PTH). PTH is used as the riparian width because it represents a distance in which a tree can still affect the water resource (e.g. shade, organic material). City of Reedsport Local Wetlands Ir�ventory and Riparian Inventory Page - 12 - Where riparian area trees have been eliminated by land-use activities or natural causes, such as development, land slides, or logging, it may be necessary to e�ctrapolate tree heights from a reference site. The reference site should be similar in character and landscape position and should be located as close as possible to the riparian reach. If a reference site is used, it is noted on the Width Determination Form. If a reference site cannot be located, field observations and reference materials must be used to establish PTH. Completion of the Riparian Width Determination Form also requires drawing a typical cross section through the riparian area. 3.4.2 Riparian Assessment Riparian areas provide numerous and complex functions that affect both aquatic and terrestrial systems. Many ecological functions of riparian areas aze also provided by wetlands, floodplains, and vegetated upland areas. The Riparian Function Assessment evaluates the ability of the riparian area to provide water quality, flood management, therma.l regulation, and wildlife habita.t functions. The results indicate whether the functions of each reach are intact, degraded, or severely impacted. The assessment is completed by answering a series of questions. Most of the questions are intended to be answered using data from the Riparian Chazacterization Form. Because certain elements or characteristics of a riparian area are more critical to its function, the answers are "weighted." The points are then totaled for each side and for each function. Based on the score, the riparian function will be assessed as high, medium or low. The results of the Riparian Function Assessment for all of the riparian areas within the inventory study area are then transferred to a Riparian Function Assessment Summary Table. In addition to the results for each of the functions, the table includes the length of the riparian reach and the width of the riparian area. 3.4.3 Riparian Functions Water Quality Riparian areas can enhance water quality in many ways. Undisturbed, densely vegetated riparian areas trap sediments, inhibit erosion and f lter runoff originating from impervious surfaces, lawns, golf courses, etc. Sedimentation and erosion, although natural processes, aze accelerated in urban areas by increased impervious surfaces. Impervious surfaces also inhibit infiltration. Sediment within a riparian area can be from erosion of paorly vegeta.ted uplands, runoff from impervious surfaces, or floods from an adjacent water resource. Sediments often carry nutrients (e.g. phosphates and nitrates) and pollutants (e.g. heavy metals, hydrocarbons) to water resources, altering water chemistry, burying spawning gravels and impacting fish and wildlife habitat. City of Reedsport Local Wetlands Inventory and Riparian Irrventory Page - 13 - Excessive concentration of nutrients in the water can trigger algal blooms, depleting the water of oxygen required by fish and other aquatic organisms. The ability of a riparian area to resist erosion is related to slope, soil type, type of vegetation, vegetation cover, landscape position, and degree of human disturbance. Flood Management Riparian areas and associated wetlands and floodplains provide a valuable flood management function by reducing the force and volume of floodwaters. Floodwaters flowing into a vegetated flood prone riparian area can be slowed or temporarily stored, reducing peak flows and flooding downstream. Woody vegetation, in particular, resists floodwaters and reduces its velocity. Topographic features, such as swales and depressions, can enhance a riparian area's ability to manage flood flows. Reducing the velocity of floodwaters in the riparian area allows i�ltration of water into the soil. Water entering the soil is slowly released into the main channel, delaying its movement downstream. Thermal Regulation Water temperature affects the ability of a stream to support viable populations of certain aquatic organisms. Riparian shade, especially forest canopy, moderates temperature within and adjacent to a water resource. Although stream temperatures are important throughout the year, summer temperature is generally more critical for fish species such as salmonids. High water temperatures and sunlight are factors that can promote algal blooms, reducing dissolved oxygen required by anadromous fish and other cold-water dependent organisms. The aspect or orientation of the water resource and the height of the adjacent riparian vegetation play important roles in how effective riparian vegetation is in providing shade. Wildlife Habitat Riparian areas provide valuable habitat for wildlife and influence fish habitat. The highest quality wildlife habitat in urban azeas has a variety of plant species and layers, a perennial water source, and some degree of protection or buffering from disturbance. Riparian areas aze particularly important migration corridors between upland and aquatic systems for a wide variety of species. It has been reported that the majority of Oregon's major wildlife species, including amphibians and reptiles, use wetlands or riparian areas during some portion of their life cycle. 4.0 CARTOGRAPHY Color aerial photographs were obtained for use in the field. These photos aze 1996 true color, with a scale of approximately 1 inch = 400 feet. Clear acetate was overlaid and permanently registered on the photographs and preliminary wetland boundaries and data point locations were drawn directly on the acetate in the field. In addition, areas within the project area City of Reedsport Local Wetlands Irrventory and Riparian Inventory Page - 14 - which permission to enter was denied, were drawn on the acetate overlays. These acetate sheets were then removed from the photographs at the completion of field work, scanned into a digital format and inserted in to the computer-based map. The base map information was provided by the Umpqua Regional Council of Governments. Base map data included a hard copy and an AutoCAD file of the parcel-based tax lots, roads, and the project boundary. The maps are registered according to the Southern Oregon Projection 1983-1991. Additional layers added to the AutoCAD base map included hydrologic basin boundaries, streazns from the USGS, additional geographic names, wetland codes, riparian codes, and sample point locations. A hydrologic basin refers to the drainage area for an individual named stream or other water feature, such as a wetland, lake, or pond. Each wetland was assigned a code beginning with the three letter hydrologic basin designation and the number of wetlands within each watershed (e.g. PRO- # for Providence Creek etc.). Wetlands that were hydrologically connected but separated by roads or were similar in character and in close proximity, were labeled with a code modifier (e.g. PRO-6A and 6B). Off-site determinations were shown with different hatch patterns. The riparian mapping was drawn on the 1" = 400' base maps and scanned into the base as a separate layer. The riparian areas were labeled with a riparian code (e.g. R-PRO-SL) and an assessment location symbol. The R differentiates the riparian code from the wetland code. The next portion of the riparian reach code is the hydrologic basin code, as determined in the LWI (e.g. PRO-). Additional coding is required to identify individual reaches and to differentiate between left and right sides, looking downstream. Riparian widths are transferred to the base map. They are measured horizontally from the outer edge of the stream or associated wetland. The final digital maps include a legend, north arrow, scale, and a disclaimer if not all wetland or riparian areas were assessed on-site or if mapping inaccuracies occur. 5.0 STUDY AREA CHARACTERISTICS 5.1 Setting 5.1.1 Culture and Industry Reedsport is located near the confluence of the Umpqua River and the Smith River on the central Oregon coast. It is approximately four miles from the Pacific Ocean and central to the Oregon Dunes National Recreational Area. The Reedsport study area encompasses the City Limits and areas within the Urban Growth Boundary. The study area is defined by the Umpqua River to the north, and steep hillsides to the south, east and west. State Highway 38 and Highway 101 pass through the project area, as well as Providence and Scholfield Creeks. The present pattern of land use in Reedsport has been determined by the location of City of Reedsport Local Wetlands Inventory and Riparian Inventory Page - I S - The present pattern of land use in Reedsport has been determined by the location of transportation routes, topography, and land ownership. Industry and commerce have historically been oriented towards the river, the railroad and the highways. Earliest development within Reedsport was along the river frontage to take advantage of bazge and boat transportation. In general, development has been confined to the relatively level azea to the south of Scholfield Creek and the Umpqua River. Lands adjacent to the river are either subject to flooding or too steep on which to build easily. Residential development is generally on the higher ground, surrounding the older central downtown area, Wade's Flat, and along Ranch Road in the northern part of the study azea. Large undeveloped tracts of land are present within the project area and are generally being used for pasture or forest products. 5.2 Topography The project azea is comprised of steep slopes bisected by major drainages and associated floodplains. The level industrial and commercial area east of Scholfield Creek is protected by a continuous levee along the Umpqua River and Scholfield Creek. The topography rises steeply to the west of Scholfield Creek, with a broad saddle between Scholfield and Providence Creeks, known as Wade's Flat. A steep ridge forms the western boundary of the study area. A levee is also along the northern and western edges of Leeds Island, at the mouth of Providence Creek. Elevations range from less than 10 feet National Geodetic Vertical Datum (NGVD) to approximately 500 feet NGVD on foothills in the project's western and southern reaches. 5.3 Hydrology 5.3.1 Hydrologic Features of the Reedsport Study Area The major hydrologic features of the project area are the Umpqua River, Scholfield Creek, and Providence Creek. Providence Creek is entirely contained within the project area, however, Scholfield Creek and the Umpqua River extend beyond the project boundaries. Scholfield Creek has an open connection to the river and is tidally influenced within the project area. Providence Creek has a tide gate at its confluence with the Umpqua River at Leeds Island, which effectively controls the tidal influence. All of the major drainages have been modified by development or the construction of levees. Due to the topographic location of the commercial and industrial districts at the confluence of the creeks and the Umpqua River, flooding was a serious threat to the viability of Reedsport. A levee system was constructed by the Corps of Engineers following the 1964 floods as a means of protection against future major flaod events. These levees are maintained by the Corps of Engineers. A series of pump stations also help to control hydrology within the central business azea. Ciry of Reedsport Local Wetlandr Irrventory and Riparian Irrventory Page = 16 - Low lying areas not protected by the levees and adjacent to the major creeks are mapped within the 100-year floodplain by the Federal Emergency Management Agency (FEMA). Most of this floodplain area is agricultural, open space (e.g. Forest Hills Country Club), or estuarine marsh. Precipitation also contributes significantly to the study area hydrology, with an average annual rainfall of 72 inches. Total annual rainfall for 1997 was approximately 67 inches. Minor drainages, spring and seeps aze also present in the study area; however, due to the steep topography and permeable soils, they are generally intermittent. 5.3.2 Hydrologic Basin Designation The study area was divided into three primary hydrologic basins: Umpqua River (UMP), Scholfield Creek (SCH), and Providence Creek (PRO). Determination of the basins was based on topographic information, the City's Stormwater masterplan, and observations of drainage patterns in the field. The watersheds and their sizes aze listed in Table 1 below: Table 1: Hydrologic Basins and Acreages for the City of Reedsport Local Wetlands and Riparian Inventories Hydrologic Basin Scholfield Creek Providence Creek Umpqua River Basin Area (acres) 1,265 1,237 229 Total Project Acreage 2,731 Scholfield Creek basin (SCH) is the largest of the three. It contains lands to the east and west of the creek and the majority of the central downtown core, as well as extensive residential areas to the south of Highways 101 and 38. The basin also contains agricultural lands along Decker Point and private forestry lands along the southern and western ridges. Scholfield Creek is a large perennial drainage with extensive estuarine marshes at the confluence with the Umpqua River and at its southern project area boundary. McIntosh Slough is located at the north end of the basin, at the mouth of Scholfield Creek. This creek is considered Essential Salmon Habita.t (DSL, OAR 141-102-030, 1996). Providence Creek basin (PRO) occupies the western portion of the study area. Land use within the basin is primarily residential and agricultural, with some commercial development along Highway 101, and forestry along the eastern and western ridges. Forest Hills Country Club is located in the center of the basin, within the floodplain of Providence Creek. This portion of the drainage has been extensively modified, with long stretches of the creek culverted or channelized within the golf course. The Leeds Island area has also undergone extensive hydrologic modifications such as ditching and diking. City of Reedsport Loca! Wetlands Inventory and Riparian Inventory Page - 17 - The headwaters of Providence Creek originate in the hillsides south and west of Highway 101. The main branch extends to the south of Highway 101 and Longwood Avenue. Another major branch of the creek is located west of Ranch Road, at the base of a steep recently logged hillside. This western branch has several intermittent streams draining the eastern side of the hill. It converges with the main stem of Providence Creek just west of the Ranch Road crossmg. The Umpqua River basin (UMP} is the smallest in total project area, however it is the lazgest of the drainages. The basin encompasses the area to the east of Scholfieid Creek and north of Crestview Drive. It includes primarily industrial and commercial development, with some residential areas. This area has been extensively manipulated during the development of Reedsport, with the majority of natural drainages filled, culverted or ditched, and the entire area protected by dikes. 5.3.3 Hydrologic Indicators Direct indicators of hydrology observed during the inventory included soils saturated at or near the surface, inundation, and a shallow water table. Indirect indicators included o�dized rhizospheres with living roots, algal mats, drift lines, and wetland drainage patterns. 5.4 Soils Table 2lists the soils that have been mapped by the Natural Resources Conservation Service (NRCS; formerly the Soil Conservation Service) within the Reedsport study area. Figure 2 is a cogy of the draft soil survey, showing mapped soils for the study area. Table 2. Soils Mapped within the Reedsport LWI Study Area Map Unit Soil Series Hydric Drainage Class 14C Lint Silt Loam, 0-12% slopes No Well drained 14D Lint Silt Loam, 12-20% slopes No Well drained 16A Brallier variant muck, 0-1% Yes very poorly drained 30A Coquille silt loam, Q-1% Yes very pooriy drained 303F Svensen-Millicoma-Reedsport Complex 35-75% 306F Reedsport-Millicoma Gravelly Loams 30-60% 32A Coquille silt loam, protected, 0-1% 306G Millicoma-Reedsport Gravelly Loam's, 60-90% 322E Svensen Loam, 3-30% 322F Svensen Loam, 30-60% 452E Salander silt loam, 12-30% 452F Salander silt loam, 30-60% 456F Templeton-Millicoma Complex 30 to 50% 456G Templeton-Millicoma C.omplex 50-75% No No Yes No No No N No No No well drained well drained very poorly drained well drained well drained well drained well drained well drained well drained well drained City of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 18 - Map "� � ' - f - ,. � S 3 F � ` . � i _ � �`4,:'�'`�'`i ��, 4 � °s�',�� p /�y�"� l� ,y.�Y'�� w 1�;" . Unit Soil Series H dr�c � } 1 � � y ,, ", � � :r;,�� } �, �e •-„ � ~�' y � . , � .�� 3'�k° "� _ � : = 4er -�� ^ A+ r S � �� ' � � p � �� u: i ,\ � }: � ; � �� t-� ' 3�' �} �,- ?n, _7.`�+ .�� ` 30A r , � 14C Lint Silt Loam, 0-12 /o slo es No �� c �±� z�� '�4�r- � � ,�� a L •��t _ (� 14D Lint Silt Loam, 12-20% slo es No �° ^� � i. � ` +� �� ",� v'"� P�� ,>�;�s,. �- '< � '� �' � P ��:` 4�. sd"-'.. , u �:t� ��Z.�� ?' _, 9j i - ' i�, . v� �� r 'Y•.' nr � � �% �°q i+i. , � ,- � � 16A Bralliervariantmuck,0-1% Yes ~ 'aY�'� ".' r "`� �'� � 2 � • 1 ,�,°�' �+; `��' '`�� ' +� �,'�_' � � � �.°� ' 3fi +' �� `. �t '. + � �A t � ; r•�� .��. �� •r . � � �- ..� � 4�•�._� `I �' 30A Coquille silt loam, 0-1% Yes � , x��: # r �: � . t��`,„ G �''�, ';•� : � � r�• . x ' '�'� �i,�'�'�'� ' ��"' ` ?`�:� ., , b' : ',., ' .., .' � . ,� 303F Svensen-Mi►licoma-Reeds ort Com lex 35-75% No ,ti+ � � S �•� '� ��: '� ' ��C �:� �, 4 r��. � 'i; ', �y��F ' '� � i.h ' P P o v.m�. . � I�� _ � ` '� k s`t� `�"`'I' �,�:�. � �>'��. �� `� . fi( ' 'E �. r ' ' : a �. �t�Y � � L: ' � 306F Reedsport-Millcoma Gravelly L oams 30-60% No _�,� ,� ,� 5 ,,, � � �, �� k .� � �� `` r .��ti�, �..,�''�: �^�,.• '�• � 32A Coquille silt loam, protected, 0-1 /o Yes t .� >�;�` `� "' " � ��, v �`�+ ,� t ; •'+ ' "' 306G Millicoma-Reedsport Gravelly Loam's, 60-90% No �- � �� _�. s ry � �„ ` �"" k ,_:�� 4 � Y t�� "�"' ��.. �'�*_. � : t � �„�. 322E Svensen Loam, 3-30% No � `'�� - ' s $' �,�",r'�°`� a`�•,?�;r, � , ' "� '��x'� "'�-�, � �-�� r �K � `, �� p e :� 7.. t}��1�4�'�' 2"':T - L� �•+� .�`�4 w?� �1 .^.;�Lc'� �." •y.-`'�' '�(�(�� . 7 � . ' � � +�a`�'� .. ' � rw'. v n No � � ��. 'k �c5. 322F S ense Loam 30-60% a � - a �"s i.� - . r ��.. �,� - M , a �� •�a'-� � y a� y � ��.'y.. �� . 452E Salander silt loam, 12-30% N � � � �+v�$�k��' f � . "' ti � � ' Y a�� . t �' � b�yi � b - �,, i's��''*, +�� :,i� y W� g.. � �� "�-� .�l r •ry � � 452F Salander silt loam, 30-60% No } � , ° �' ��;:�� i ' , `' .`., '.s� < _ �7 , r �, i �f a ,„ ' e�a y �,�ti '�s/_ , %�� - _ '. 456F Templeton-Millicoma Complex 30 to 50% No `� t "`� o � �:��' �� ' �� . / , '� ' � � r` , ` � � { � ' ' _ ° 0 k � °S .' 6 l� 2 +- .1 L . `� � � Fr,�Yi 5 .'� , ��r�'.> � . 1 � . ..y�y . n_ 4 qs �a. 456G Templeton-Millicoma Complex 50-75% No � � ' '. 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'' �`�,: .,,``�,_ ��,�� T" _y. _. . �:�c � 1 � � ` � -"� � �r� � : � . ;.,�T. � ,� J Soil series mapped within the Reedsport Local Wetlands and Riparian Inventory project area PHS FIG 2 (U.S.D.A., N.R.C.S., draft soil survey of Douglas County, Oregon, 1997). s Lint silt loam, 0-12% and 12-20% slopes (map unit 14C and 14D) consist of deep, well drained soils formed in alluvium on gentle to moderately steep marine terraces. The surface layer is dazk brown silt loam or silty ciay loam about 16 inches thick, the subsoil is dark brown and yellowish brown silt loam about 43 inches thick, and the substratum is yellowish brown silt loam. According to the U.S.D.A. NRCS, this soil is not hydric and is classified as Typic Dystrandept, Medial, Isomesic. Brallier variant muck 0-1% slopes (map unit 16A) consists of very poorly drained organie soils formed in partially decomposed herbaceous and woody plant materials over silty alluvium in old tidal marsh and floodplain areas. The surface tier is dark brown fibrous muck about 13 inches thick, and the subsurface tier is very dark brown partially decomposed muck or peat about 25 inches thick. The bottom tier is dazk gray coarse silt loam. According to the U.S.D.A., NRCS, this soil is hydric, and is classified as Terric Tropohemist. Coquille silt loam, 0-1% slopes (map unit 30A) and Coquille silt loam, protected, 0-1% slopes (map unit 32A) consist of very poorly drained soils formed in alluvium in floodplains and are subject to tidal fluctuations. Typically, the surface layer is very dark grayish brown silt loam about 13 inches thick. The substratum is dazk grayish brown silty clay loam and silty clay to a depth of about 60 inches. According to the U.S.D.A. NRCS, this soil is hydric, and is classified as Aeric Tropic Fluvaquents. Svensen-Millicoma-Reedsport complex, 35-75% slopes (map unit 303F), Reedsport- Millicoma gravelly loam, 30-60% and 60-90% slopes (map units 306F and 306G) consist of moderately deep, well drained soils formed in colluvium and residuum from sandstone, occurring on mountaintops and rounded ridgetops. Typically, the surface layer is very dark grayish brown gravelly loam about 5 inches thick, and the subsoil is dark brown loam and clay loam about 27 inches thick. Depth to weathered sandstone ranges from 20 to 40 inches. According to the U.S.D.A. NRCS, this soil is not hydric, and is classified as Typic Humitropepts. Svensen loam, 3-30% and 30-60% slopes (map units 322E and 322F) consist of deep, well drained soils formed in colluvium and residuum from sedimentary rock on mountainsides, ridgetops and footslopes. The surface layer is very dark brown and very dark grayish brown loam about 12 inches thick, and the subsoil is dark brown and very dark brown loam and clay loam about 29 inches truck. The substratum is dark yellowish brown loam about 11 inches thick. According to the U.S.D.A. NRCS, this soil is not hydric. Its classification is not available. Salander silt loam, 12-30% and 30-b0% slopes (map units 452E and 452F) consist of deep, well drained soils formed in siity alluvium from weathered sedimentary rock that occur on hills at elevations of 50-1400 feet. Typically, the surface layer is dark reddish brown silt loam about 9 inches thick, and the subsoil is dark brown and dark reddish brown silt loam in the upper part and light silty clay loam in the lower part of 60 inches. According to tl�e U.S.D.A. NRCS, this soil is not hydric, and is classified as Typic Dystrandepts. City of Reedsport Local Wetlands Inventory and Riparian Irrventory Page - 19 - Templeton-Millicoma complex, 30-50% slopes and 50-75% slopes (map units 456F and 456G) consist of well drained soils formed in colluvium on mountainous areas. The surface layer is very dazk brown gravelly loam about 18 inches thick, and the subsoil is dark brown very gravelly laam about 1'l inches thick. According to the U.S.D.A. NRCS, this soil is not hydric, and is classified as Andic Humitropepts. A variety of soil types were sampled during field visits to the study azea; surface features are described on data sheets in Appendix B. Hydric soil indicators observed during the survey included low chroma soils (both with and without mottling), a hydrogen sulfide odor, and an aquic moisiure regime in some locations. 5.5 Vegetation 5.5.1 Overview The City of Reedsport is located within the Sitka Spruce (Picea sitchensis) Forest Zone (as characterized by Franklin and Dyrness, 1973). This vegetation zone occupies a low-elevation strip along the immediate coastline, often only a few miles wide, subject to a relatively wet and mild climate. The zone is essentially a variant of the Western Hemlock (Tsuga heterophylla) Zone, distinguished largely by the presence of Sitka spruce, frequent summer fogs, and proximity to the ocean. The climate provides nearly ideal growing conditions, accounting for the high productivity of forest stands, as well as prolific growth in shrub and herb-dominated communities. Common trees found in this region include Sitka spruce, western hemlock, western red cedar (Thuja plicata), Douglas fir (Pseudotsuga menziesii), and red alder (Alnus rubra). Sites disturbed through fire or logging may develop into stands of mixed conifers including spruce, hemlock and Douglas fir. However, red alder may overtop the regenerating conifers and develop into neazly pure alder forests. Dense sl�rub cammunities may also form on disturbed sites, often in conjunction with red alder; the dense understory may delay conifer colonization almost indefiniteIy. Thicket-forming shrubs common in the region inciude salmonberry (Rubus spectabilis), sa1al (Gaultheria shallon), and evergreen huckleberry (Vaccinium ovatum). Further discussion of coastal plant communities within the Sitka Spruce Zone can be found in Natural Yegetation of Oregon and Washington (Franlclin and Dyrness 1973). 5.5.2 Local Vegetation Communities Generalized plant communities encountered within the City of Reedsport study area include upland broadleaf-scrub/shrub thicket, upland coniferous forest, upland mixed coniferous/deciduous forest, developed-urban, wetland, and riparian. Wetland communities are further distinguished as freshwater (palustrine emergent, palustrine scrub-shrub, and palustrine forested; and riverine systems), and brackish (estuarine emergent, estuarine scrub- shrub, and estuarine forested) following the Cowardin classification system developed for the Ciry of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 20 - US Fish and Wildiife Service (Cowardin, et. al., I979). Each of the above communities is described in the sections below. A list of plant species known or suspected to be in the area is included in Appendix G. Upland BroadleafScrub/Shrub Thicket Shrub communities are typically associated with relatively recent or periodically occurring disturbances (i.e. following logging, grading, and fire; or subject to flooding). Dominant species may include saplings of regenerating conifers such as Sitka spruce or pouglas fir, deciduous trees such as red alder, and shrubs such as salmonberry, thimbleberry (Rubus parviflorus), salal, vine maple (Acer circinatum), evergreen huckleberry, rhododendron (Rhododendron macrophyllum), and blackberries (Ruhus spp.). Introduced Scots' broom (Cytisus scoparius) is also a rapid colonizer in disturbed areas. Herbaceous species are common in cleared openings, often being the first plants to colonize disturbed ground. U�land Coniferous Forest The dominant species in the coniferous overstory aze Douglas fir, Sitka spruce, western hemlock, and western red cedar. Sitka spruce is more common closer to the ocean, with the other species becoming more dominant further inland or in managed forests. Understory plants vary greatly with the density of the tree canopy. A closed canopy forest tends to suppress understory species diversity and density, though species such as false lily-of-the- valley (Maianthemum dilatatum) and sword fern (Polystichum munitum) are commonly encountered. Openings in the canopy allow greater shrub development, with salmonberry, salal, rhododendron, and evergreen huckleberry often evident. Unland Mixed Coniferous-Deciduous Forest The conifer species mentioned above may be codominant with deciduous hardwoods such as red alder, bigleaf maple, and willows. Shrub understories are often well-developed due to a more open tree overstory for much of the year. Common shrubs include salmonberry, red elderberry (Sambucus racemosa), vine maple, evergreen huckleberry, salal, and cascara (Rhamnus purshiana). Developed-Urban Plant communities in large portions of the City of Reedsport study area have been influenced by human activities for most of this century. The study area includes heavily developed commercial areas and single-family residential subdivisions, as well as widely dispersed residential to undisturbed natural areas. Residences, businesses, parking areas, roads, and sidewalks all represent unvegetated or landscaped areas. Vegetation is often of horticultural origin or weedy in these areas. The fringes of these developed areas may have been subject to disturbance as well, often allowed to regenerate as red alder, salmonberry, or blackberry thickets. More frequent disturbance may maintain areas as open spaces dominated by weedy grasses and farbs. City of Reedsport Local Wetlands Irrventory and Riparian lnventory Page - 21 - Wetlands Wetland areas are generally transitional between upland or riparian areas and truly aquatic sites with permanently open water. Open water may or may not be present, in which case the wetland can occupy a position where the groundwater table comes close to the surface for an extended period at some time during the growing season. Brackish, or estuarine wetlands aze present along the tidally influenced banks of the Umpqua River and Scholfield Creek. Palustrine forested wetlands (PFO) in the area aze dominated primarily by an overstory of Sitka spruce, western hemlock, western red cedar, and red alder, with the shrub layer often dominated by salmonberry. Palustrine scrub/shrub (PSS) wetlands typically include sapling red alder, salmonberry, willows (Salix spp.), four-line honeysuckle (Lonicera involucrata), Douglas' spiraea (Spiraea douglasii), and western crabapple (Pyrus fusca). The herb understory though typically sparse, often includes skunk cabbage (Lysichitum americanum), lady fern (Athyrium filix-f femina), and slough sedge (Carex obnupta). Palustrine emergent wetlands (PE1V� are dominated by herbaceous species such as slough sedge, water parsley (Oenanthe sarmentosa), soft-stem bulrush (Scirpus validus), rushes (Juncus spp.), and common cattail (Typha latifolia). Palustrine emergent wetlands which are used for pasture tend to be dominated by grasses such as reed canarygrass (Phalaris arundinacea), colonial bentgrass (Agrostis tenuis), common velvetgrass (Holcus lanatus), creeping buttercup (Ranunculus repens), and soft rush (Juncus effusus). Estuarine wetlands along the Umpqua River and Scholfield Creek are primarily composed of emergent species, although occasional forested to scrub/shrub patches are present as well. These estuarine scrub/shrub (ESS) and forested (EFO) wetlands primarily consist of Sitka spruce, Hooker willow (Salix hookeriana), four-line honeysuckle, salmonberry, and occasionally red alder. Estuarine emergent wetlands (EEM) at lower elevations are influenced by the combination of high salinity and daily tidal inundation. These factors produce a pronounced zonation by species. Common emergents in these brackish areas include Lyngby's sedge (Carex lyngbyei), tufted hairgrass {Deschampsia cespitosa}, Puget Sound gumweed (Grindelia integrifolia), Baltic rush (Juncus balticus), Pacific silverweed (Potentilla anserina), and hazd stem bulrush (Scirpus acutus). Riparian Riparian forests are often similar to the upland mixed evergreen-deciduous forests, though species prefemng wetter sites may be more common. Sitka spruce, Douglas fir, and western hemlock may codominate with red alder and bigleaf maple. The shrub layer is often quite dense, especially within a red alder or otherwise more open stand, and may consist of such species as salmonberry, vine maple, salal, and evergreen huckleberry. Herbaceous species may dominate the understory under a closed evergreen canopy, with lady fern, sword fern, or false lily-af-the-valley often present. Riparian communities are often transitional to or include wetland communities. City of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 22 - 5.5.3 Wetland and Upland Indicator Species Species lists of commonly encountered plants, along with their status as indicators of wetland conditions, have been prepared for all regions of the country by the USFWS (1988). The status of a particulaz plant, as discussed in Section 2.0, is the probability of that plant occurring in a wetland. The following table summarizes the wetland indicator codes. Table 3. Indicator Code OBL FACW FAC FACU Wetland Indicator Codes and Status Status Obligate wetland. Estimated to occur almost exclusively in wetlands (>99%) Facultative wetland. Estimated to occur 67-99% of the time in wetlands. Facultative. Occur equally in wetlands and non-wetlands (34-66%). Facultative upland. Usually occur in non-wetlands (67-99%). UPL Obligate upland. Estimated to occur almost exclusively in non-wetlands (>99%). If a species is not assigned to one of the four groups described above it is assumed to be obligate upland. NI Has not yet received a wetland indicator status, but is probably not obligate upland. Many plants are found in transitional areas between wetlands and uplands. These areas are usually characterized by flat to gradually sloping terrain where the species composition may not reflect true wetland boundaries. In such areas, a species with a status of FACU may, extend into the wetland areas, just as FACW species may also be present in upland areas. A non-comprehensive listing of plant species encountered or expected within the project area, and their wetland indicator status, is included in Appendix G. 6.0 LWI DISCUSSION AND CONCLUSIONS 6.1 U.S. Fish & Wildiife Service Nationai Wetland Inventory Areas The U.S. Fish and Wildlife Service, as part of the National Wetlands Inventory (NWI) program, has mapped wetland in the study area (Figure 3). The NWI maps are generated primarily on the basis of interpretation of relatively small-scale color infrared aerial photographs (e.g., scale of 1:58,000) with limited "ground truthing" conducted to confirm the interpreta.tions. City of Reedsport Local Wetlands Inventory and Riparian Irrventory Page - 23 - � EZEMN ��e�aa �USN � 4s8c� �' ELEMN � � ; R45BC \ � \ R456C-�� ettMN � iYEI e UsM ' `. v t ` � EiEMN .. � � � U PFOR •. R4SB � E� � � E2EMPs .. . t � ,� E2EMN R45BC / .... � RIUBv , � � PFOC %�PEMCh � � E�B� . �'�.R3UBH °0 _' �EMT ' zEMN ' ; PEMGh ,: ♦ � �•` �' PE SRPEMG P55C PFOA �� E� . R45BA _� • . --�, ' P�M R PEMC ` PErv�r � � � �� RI UBV � �PA6H PE ' � PUBNx SBC-� � PEMCh PEMC • R .BH U �� . \ PEMC' �. � .� .. � PEM�h U I ', R3u6H ��' PABN PEMC � \ �458 •. P�MC ' R45BC �, .J � � PSSF PEMC � ' PRBH� � �. � RT� . J PEMR � PABH . ' °SSA �._,/ I � ' � P � �ii3uBH� `'^ / PfkR •� � �� \ j PEMA c � � ♦ - U PE � � ' , P8 � Pssc / �1�1�1�1�1�� `� � 2U3N E?�� iT PEMC � �� , � R45BC : F3U9H C Y PFoc N4 � �..., PFOq ' E2EMN � � S� E7.EMN � v t �`��'' EzEMP �``�� \,� � 1� E25BN EZEMN �\ PUBK� �� E2EMN EMN , �,�P'' �ueN '�E2EMN �,;' �P�M� �� 2EMPLL. � `�� 6N � �z�MN 4�C 6�FEMR � DCMT s �� , R4SBc� � PFOR� PEMT National Wetlands Inventory map for the Reedsport Local Wetlands and Riparian Inventory project area (U.S.F.W.S., Reedsport and Winchester Bay 7.5 min. quadran�les,1975 aerial photography). PHS s FIG. 3 �� PEM � � PEMr N e2u5N PEMT P�oR PEMA PEMT PFaR PfMT PEMR � ��,,. . o��,e,� PeMa �--� P� 2000' 0' 2000' 4000' � SCALE in �EET L`�',� / P€MGh � � PEMCh PFOR _ `��' PEMT �� EIUB� „ 6.2 Local Wetlands Inventory Results 6.2.1 Wetland Acreage and Distribution A total of 80 wetland units were identified during the LWI with a total acreage of approximately 394 acres (Figures 4A-4C). The Scholfield Creek and Providence Creek basins are approximately equal in size and number of wetlands. Scholfield basin has 38 wetlands in 1,265 acres and Providence basin has 40 wetlands in 1,237 acres. The Umpqua River basin is eonsiderably smaller, with 3 wetlands in 229 acres. Providence Creek basin has a higher percentage of wetlands within its basin (19%), followed by Scholfield Creek with 12 percent. Table 4 summarizes the wetland acreage and distribution in the study azea. Table 4, Wetland Areas within Each Basin for the Reedsport LWI Area Wetland Percent of 6asin Watershed (acres) (acres) that is wetland Providence Creek 1,237 239.04 19% Scholfield Creek 1,265 154.21 12% Umpqua River 229 0.46 <1 % Total Project Acreage 2,731 393.71 14% 6.2.2 Wetland CIassification Each wetland was classified according to the Cowardin system. Palustrine emergent wetlands are the dominant (65%) wetland type in the study area. Estuarine emergent wetlands are the second most prevalent wetland class in the study area {19%), followed by palustrine forested (7%), palustrine scrub/shrub (5%) and palustrine open water/aquatic bed (3%), and estuarine scrub shrub/forested (1 %). Tables 5, 6, and 7 summarize the wetland classifications for the Reedsport LWI study area. Table 5 is a summary of the distribution of wetland classes within each basin. Table 6 summarizes the wetland classes in the project area. Table 7(pages 25-27) is a classification and acreage for each wetland. Table 5. Types of Wetlands within Each Basin for the Reedsport LWI Pravidence SchoIfield Umpqua Wetland Classification Creek Creek River Palustrine forested Palustrine scrub shrub Palustrine emergent Palustrine open water/aquatic bed Estuarine emergent 26.38 5.73 9.00 9.65 192.93 62.20 4.44 3.52 6.29 68.48 0.05 0.41 Estuarine scrub shrub/forested 0 4.63 City of Reedsport Local Wetlands Inventory and Riparian Inventory Page - 24 - . .\ '� PRO-11 � � . ,� ,. � 32 33 5 4 .� . �. � i i 58 M 5� 0 l pl .4 ` PRO-7A 1 �: �1 • � �' \ `� � / . , . , � I�I Matchl��e _sh_�et 1 � d. T Matchliri��sh��et 2&_; � �I � T � � _,_ ` v _ � � � I � I ; , �.z.l I� �� I I � � i cu �� ` 44,� 1 ��, cs � :� i� � i��Gj ��/� � w n � I � �♦ /� / °°'n // // � � o � I � / /��/�� v��mo Ul � r - � SCH /��/��/�� yuu$ I I ��/ e ��/��/ � a� pon � � tL ��iGe,/�/ xa,;R ►►t+i 1 / t / / �a � �� i ��a, � �i� �� i ~ � � o o �`,� S /� L / ��/ �� / �/ � � ; R _ o S � �/� �'�O / � a ' s o'�. �� I . � �� /SC � ' �-` `� � d Sc�it _ �- � � � � �� , 1 � 5 � r��i L Z.1 � '� i-2 /�// � �-V � . H 1� �/� �i � H-1 O . ` �� 1 _ 1 -�-� � ' ti � //� // �1 `T" � � � � y �, �j� �� . E�� j�/i —1;; � , � 94 • �.�.-,�93 .�.-.�, � � � 1 _ � � , 1 \ � \ 98��p7 � � PRO-13[ ., ; e= _� � 5 � , : :� � ' C �� ;,': , � I�� C� �'. �i� � �� i � �! � /� � ProJect Bouud�p � � � � r � � pe4rmt �Uon a � •�LenheC Bauodu7 .��-�' �« Sile 1/eWnd � Pmdtn� tor lhL preJect .� pro+ld�d E� ��r�nl trom lhe Ora�on DeLarminaUon DN1�len ef St�l� Iand�, 1feWnd� Plannln� iW/ilanca �rant ro�ram. inf. ir.nip ir.m �. .�Pporba n� . �r.ni rrom u,a u.s. �nHw�meam DralnYe -�-�-•-�- -- 9ampla Pofnl � 58 Prolactloa Kaac7 under .uthoril7 of lhe Claan ��ler AcL uP�.�e - V` �eu.�a coae PRO-1 � II • / � I � � _. PRO-11D 91 �`c�� A PRO-11 C.�� 21 :4 � P5 . :� .�� _ � ��► :!'I�,� i PR0-10 PSQ-12� r-�/ PRO-7B �� lo' [3 sos uv�f.n� ry � �o ,-� - , P�0-7 vos ° :u:oa • - - 701L upland .. i ' ''J. • ' ipl�nd � � � � � �� I J1 _ /'i�� 15 � PRO-13D PRO-14 � 41 �� -13C � PRO-13F 85 � 49 ;` 98 PRO 19E 40 ' 44 �9' � PRO-13B �pRO-13G torut H1W ,� Countr� Club �+ � � PR4-13H ��-. • � - � �� w�� ` � ♦ , ''� � I 1;i�� .., , �. �� ,� _ �;� _ � ��. +'''♦+� r � ° ' ; � � �� ,, � � ;, � '� ., ,� __-�� I � I GRAPHIC SCALE e � ��-� so.i. m e..t ProJacUon: Soulhero Or��on 1Y88-IYYI ��- ,� �j �a�' r s — ;�� — � ,a �� ,., � �� .� �11� � � �, ��i � �� '�.s� �t�, ,,•�*' � � �� :� � '�� /1� �/ ��''. .� --..v! �s � � �� ' � � : — i� �i� �i �� ii; � s�ii--ts '� r �ir� r,' i ti � /i � i - i�� /, s r � l �/��/ �� f�� f � /i /, _ ='"� /i /� /i i� �i�i�i '�~ %// �//�/ � /��// �//� / � / _i c _ ,,,,, , _ - —_: 1 se 84 e S 5A SCH , . ' 88 SCH-4A � -- � � _ --� � � — ..� I f � � � -� � � � I If� I I� I �� i �� I- -- - / � �� 1 � .��! THIS IdAP IS FOR PLAIYNINC PURPOSES ONLY 1fETLAND HOUNDARIES ARE APPROXIMATE AND SUBIECT TO CHA�GE This map hae NOT been approved by tbe wet and regulatory aqencies for permitting purposee. You are edvised Lo conlect lhe Oregoa Division of Stale Lande and the U.S. Army Corpa ot Englneere wilh any reguletory queetione. There may be addilional eettands within the atudy area thet heve not been idenlitied. All eetlanda, wheiher mapped or nol, are eubjecl Lo Federel and State permit reyuiremente. There may aleo be aread o[ non-weUend aithin areae identified ae wetlanda on thie mep. In e11 caeee, Faderel and State agenciee will uae actual Iield conditione, ralher than thie map, to determine welland boundariea. �--a � � � � Q� � a� � � � a � �--� � 0 � � 0 � � � � � .� U � N R U 'O '�j � � v � � c n h j O ' 2 � � 2 � � � O m � V � • � M� � u C^ v� u �` mya� Qo ��' a � u �� x " . ^ � O q u�. C�. �i'k � ProJect Bound�q � � � � � � � Oa Site IleUsad � Determin�Uon 11�4nhad Bounda7 .—��' Ott Slle 1lellend e7,� �uneln� tor lhl� preJeet w prorided b� � �r�nt [rom lhe Oro�on DalerminsUoa �///(�%/./!� Did�lon of 81d� I�nd�, Il�tl�nd. Pl�nafu� Wbt�nae �r�at pro/r�m. Thl� �r�nL pro�m /� �u'porl.aE b� {* • t from Ne U.e. 6nMronmmW Ur•In•{s —•—�—•—�—•—'— g•�P�e Pofnl �'$A Prolectlon A�anc� under uthorlly of lh� Clean R�4� AcL uP�.�a - 1T �au.�a coee PRO-1 � � I GRAPHIC SCALE e i� � J sa.�. io rr.i ProJeoUon; Soulhern Oro�on 1i89-I�G1 ► 1 . iES ONLY 1fETLANO HOUNDARIES ARE APPROXIMATE AND SUHJECT TO CHANCE Thle map has NOT Deen approved bp the wetland reguletory agencies for permitling purpoeea. You are adviaed to contact the Oregon Division of State lande and Lhe U.S. Army Corpa of Engineere with any regulalory queetione. There may be additional wetlande within lhe atudy area that have not been identified. All wetlanda, whether mapped or not, are eubjecl to Federel and State permit requiremente. There may eleo be areee o! non—wetland within ereas identitied as wetlenda on thie map. In all caeee, Federal and State agencies will uae acluel fleld condillone, rathar than thie map, to determine weUend boundariee. � � /�"7 O � � � � ° O � � � � � � �� a� � � � � � � � � � 0 � O „�, I U I s � � a � v n H j � . 2 � � 2 � � m O m � Table 6. Types of Wetlands within the Reedsport LWI Study Area Wetland Ctassification Palustrine emergent (PEM) Estuarine emergent (E2EM) Palustrine forested (PFO) Palustrine scrub-shrub (PSS) Palustrine open water/aquatic bed (POW/PAB) Estuarine scrub shrub/forested(E2SS/FO) Total Area (acres 255.19 74.77 29.76 18.70 11.13 4.63 393.71 Percent of Wetlands 65% 19% 7% 5% 3% 1% 100% Table 7. Cowardin Classification of all Wetlands Identified in the Reedsport LWI � r. w . `' �� ,�„ � ��.. : � � w -: ; _�� ,°�_� ��a�,� �� ,� .� � �_��,� �``,� �� . � � .� �..�� _�`� , . : : � � � � � � ,� W ..� 3 � � �� `��" � � �� z �� St� �� s � r ��`�1 �sr � �� ,'�, �.�� 3 �� , 8' ��'�. ��ki �� 4�. k� F ��...a�..,., �. � .� �� , � rs.�, '��.��. ��pf. ' .�, .. �-.� � e._ . �..� ._ .- �� 3e..,.wa�.. .e.. , . ... ._ _ €. , . �> . ,,., : �,. �, a .,__ ..<.�...�.>...r , . ' � ' �� • • �: < : -__ ...,. . , �.._ , -. . . � � • ♦ -- � � � - • i • � � • � -_� _■- • , • • • --� _-- I ' , • • , -- ,• - ', � � • --� - • � � • i ♦ __� - , � � • � � __ � i - i � � � � � _ � � � - � � • -_ I � -_-.- � � � � � • � � - i - � ��• . � , i i ' � i - i � � • � - _ � � � - • i i � � • i _� '_.- • � � r , i � --� - ' � � � i i -� � � - i � � • • -_� - , � � • , __ � � -,-- i � � � • . �� - • � � r � i � � � i � - � � � • �-� - • i � � • , �__-_ - , ■ � � • __� � , - � i � �� ' � � _ � � - � i� � �� i -_ � � � - � � Ciry of Reedsport Local Wetlands Inventory and Riparian Irrventory Page - 25 - Table 7. Continued PRO-13C 0.18 0.18 PRO-13D 0.69 0.90 1.59 PRO-13E 0.21 0.21 PRO-13F 0.48 0.48 PRO-13G 0.19 0.19 PRO-13H 0.09 0.09 PRO-13I 2.91 2.91 PRO-14 1.48 0.76 2.24 PRO-15 4.59 4.59 PRO-16A 0.41 0.41 PRO-16B 0.13 0.13 0.26 PRO-16C 0.15 0.33 0.48 PRO-16D 0.18 0.18 PRO-17 0.18 0.18 SCH-1 21.48 21.48 SCH-2 0.92 0.92 SCH-3 0.26 0.51 0.77 SCH-4A 4.09 4.09 15.89 24.07 SCH-4B 0.80 0.80 SCH-SA 34.38 34.38 SCH-SB 0.84 2.51 , 3.35 SCH-SC 0.76 0.25 1.01 SCH-SD 1.55 1.55 SCH-6 0.23 0.23 SCH-7 3.44 3.43 6.87 SCH-8 0.85 0.85 SCH-9 3.59 3.59 SCH-10 22.51 0.46 22.97 SCH-11 3.34 3.34 SCH-12 0.04 0.11 0.15 SCH-13 0.55 2.18 2.73 SCH-14A 0.08 0.08 SCH-14B 0.01 0.01 SCH-15 0.88 3.52 4.40 SCH-16 0.13 0.13 SCH-17 1.04 0.26 1.30 SCH-18 0.15 0.15 City of Reedsport Loca! Wetlands Inventory and Riparian Irrventory Page - 26 - Table 7. Continued SCH-19 0.18 0.18 SCH-20 0.49 1.45 1.94 SCH-21 0.50 0.50 SCH-22 0.09 0.09 SCH-23 0.34 1.35 1.69 SCH-24 0.29 0.55 0.84 SCH-25 0.02 0.02 SCH-26 1.54 1.54 SCH-27A 0.16 0.08 0.24 SCH-27B 0.67 0.35 1.02 SCH-28A 0.22 0.12 0.34 SCH-28B 0.04 0.04 SCH-28C 0.02 0.02 SCH-29 10.55 10.55 SCH-30 0.07 0.07 UMP-1 0.06 0.06 UMP-2 0.05 0.05 UMP-3 0.35 0.35 PFO PSS PEM POW/PAB E2EM E2-S S/FO 6.3 Palustrine forested Palustrine scrub shrub Palustrine emergent Palustrine open water/aquatic bed Estuarine emergent Estuarine scrub shrub/forested Total 29.76 (7%) 18.23 (5%) 255.19 (65%) 11.13 (3%) 74.77 (19%) 4.63 (1 %) 393.71 Oregon Freshwater Wetland Assessment Methodology Results 6.3.1 Wetland Quality Assessment An assessment of the quality for each of the Goa15 and Goal 17 wetlands identified through the inventory was conducted using the Oregon Freshwater Assessment Methodology (OFWAM) (Roth et al, April 1996). OFWAM assesses 6 functions and 3 conditions, as described in Section 3.3.1. Appendix C contains all of the results for each of the 72 wetlands assessed by the methodology along with summary sheets of the functions and conditions assessed by the methodology and the rationale for the results. City of Reedsport Local Wetlands Irrventory and Riparian Inventory Page - 27 - Thirty percent (30%) of the wetlands provided diverse wildlife habitat and the other 70% provided wildlife habitat for some species. Approximately haif of the wetlands were not assessed for the fish habitat function due to the lack of perennial surface water or connection to surface water. Of the 26 wetlands which were assessed for fish habita.t, 10 were determined to be high quality due to shade and instream structure. The other 16 wetlands were assessed with impacted or degraded fish habitat due to lack of shade, or channel modifications. The water quality function was assessed as impacted or degraded in 57% of the wetlands, and intact in the remaining 43%. The generally high water quality function is due to extensive floodplain wetlands with good vegetation cover in the study area. Hydrologic control was generally assessed as impacted or degraded, due to unrestricted outflow, dominance of emergent vegetation, and surrounding agricultural lands. Seventy five percent (75%) of the wetlands were assessed with hydrologic control function as impacted or degraded. Twenty five percent (25%) of the wetlands have intact hydrologic control, and only one wetland (UMP-3), less than one percent (<1 %), had hydrologic control lost or not present. All the wetlands were considered to be potentially sensitive to future impacts due to existing or zoned development in adjacent lands. Wetlands were given a low or medium rating for educational or recreational opportunities in a majority of the wetlands due to their location on private lands, lack of public access or developed paths, and safety concerns associated with public access and handicap access. Aesthetic quality of the wetlands was varied according to presence of major roads and noisy traffic, adjacent development, agricultural practices, and number of Cowardin classes in the wetland. The majority (51%), however, were considered to be aesthetically pleasing. Although OFWAM provides qualitative information on the relative value of wetlands and does not have a numerical ranking, numbers were assigned to the assessment criteria in order to easily compare the results. A number I was assigned to wetlands receiving the highest function or condition result (e.g. intact, diverse), a number 3 was assigned to the wetlands receiving the lowest result (lost or not present, not appropriate), and a number 2 was assigned to the results which do not fit the other criteria (potential, impacted or degraded). This system is summarized in Table 8(next page). Table 9(pages 30-32) shows the results of the quality assessment conducted on all of the wetlands identified through the inventory. Some functions or conditions were not applicable to certain wetlands. For instance the methodology states that if a wetland receives an assessment of "diverse wildlife habitat" then the enhancement potential assessment is not applicable. In addition, if there was no likelihood of fish habitat in the wetland, the fish habitat assessment was not completed. City of Reedsport Loca! Wetlands Inventory and Riparian Inventory Page - 28 - Table 8. Key to the Oregon Freshwater Wetland Assessment Methodology Numerical Ranking �;< �� m !, 1. Wetland provides diverse wildlife habitat �� WW��e�Hab�tat'� �� 2. Wetland provides habitat for some wildlife species ,. -= '- ' 3. YVetland does not provide wildlrfe habitat _ 1. Wetland's fish habitat function is intact �; w��sh�Iabita#-� �� 2. Wetland's fish habitat function is impacted or degraded � �, _ z � 5"= ,. ._, :. 3. Wetland's frsh habitat function is lost or not nresent 1. Wetland's water-quality function is intact 2. Wetland's water-qualityfunction is impacted or degraded 3. Wetland's water-aualitv function is lnst or not nresent �,-� . 1. Wetland s hydrologic control function is intact . ._ c Con�r��l rv ` -: 2. Wetland's hydrologic control function is impacted or degraded � '-; 3. Wetland's hvdrologic control function is lost or not nresent i ,::,. 1. Wetland is sensitive to future impacts ty�to�X�ri��'act„ ., 2. Wetland is potentially sensitive to future impacts �� 3. Wetland is not sensitive to future impacts '� l. Wetland has high enhancement potential �Frih�itc�men��F�it��itial,- 2. Wetland has moderate potential for enhancement �� , � , , �� a �=e -" � ` � 3. Wetland has little enhan�ement potential " l. Wetland has educational uses 2. Wetland has potential for educational use ' 3. Wetland is not app ropriate for educational use ,� � 1. Wetland provides recreational opportunities ��rea�fibu' � 2. Wetland has the potential to provide recreational activities �� . �� -' " 3. Wetland is not appropriate for or does not provide recreational s� . � ,.,�.. � opportunities 1. Wetland is considered to be pleasing 2. Wetland is considered to be moderately pleases 3. Wetland is not pleasing City of Reedsport Loca! Wetlands Irrventory and Riparian Inventory . Page - 29 - Table 9. Oregon Freshwater Wetland Assessment Methodology Numerical Ranking Results for the Reedsport �',,,�i � J h � � 0 �� _ � � � � n ��' � � � o � � fl � m � `� � : o,� � o �o� ^ � A � A . y � � � < ro � � 0 � .. Local Wetlands Inventory -:>, ,,,. �„ � .p�. , . � . e+ %Y r�:e� z �f ;�;: ; '4' -;�� . �, =`t;� K �,:w �u ,.0 r,,, m u w� :.-. i�t k �.. �;{;'i i&:� s i..:�ktn �t„"aa� � �..' ,r.v, , � i �(��1��'�+ ��'� "''�IS��1l µ;; .., .. u : '� �; ,:: . �� G11iS�1�1'4'�1 �� kD�'��."`� �� 8�� ;��:. � �� `� , �.�;: �: j ��.'�� i� �'.,, ., . .:..� �:ss ;�..,, ,,< �.�'�. , �"��' a� �r, .� ,.i, � ��.. �� Af;'�'.lC ; r.�7"C��. ,, ��,i e� �� t y �u ��a ,�. � � r�t � � � �°� �v : � � ic4'n i�p4 s<,,.,�: �aa � y �� '�� f t � � y y' � t' ;� I j ' , { r�� " a 7='� ' � �` �� ,� '.�- »� � �� ,��, d 14�r�'„&` *�+��.. s ._'�a� � "; z �� ..1°-� � '�y. 1. + 4 2�' i'� i ��' d 'Sf �'�'� .�. ° �.��.,� h�;� ��::?��,. e.:,« �. � :;-F .��: ,� � �,.. . �" �.��..� �!�t��i ��?��'�. ,�� t ,,�� J 4 " ' .. -� . _..__. . _ r ,. . �,_. «.. ��.. � , .� < � �., s .... .. , ... ... �� .� e . PRO-2A 2 2 1 1 2 1 3 3 3 64.29 PRO-2B 2 n/a 1 1 2 1 3 3 1 26.75 PRO-2C 1 2 1 2 2 n/a 3 3 1 3.44 PRO-2D 1 2 1 2 2 n/a 3 1 1 3.09 PRO-3 1 2 1 2 2 n/a 3 1 1 3.79 PRO-4A 1 2 1 2 2 n/a 3 1 1 0.21 PRO-4B 2 n/a 2 2 2 1 3 1 1 4.43 PRO-4C 1 2 1 2 2 n/a 3 1 1 1.27 PRO-S 2 n/a 1 1 2 1 3 3 1 27.48 PRO-6 2 n/a 1 2 2 1 3 3 1 5.70 PRO-7A 1 n/a 1 1 2 n/a 3 3 1 2.58 PRO-7B 2 n/a 2 1 2 1 3 1 2 6.44 PRO-7C 2 n/a 2 1 2 1 3 1 2 5.66 PRO-$A 2 n/a 2 1 2 1 3 1 2 5.92 PRO-8B 1 n/a 1 1 2 n/a 3 3 2 1.78 PRO-9 2 2 1 2 2 1 3 1 1 0.37 PRO-10 2 n/a 2 1 2 1 3 1 2 5.86 PRO-11 A 1 1 1 1 2 n/a 3 3 2 19.74 PRO-11 B I I 1 1 2 n/a 3 3 1 22.15 PRO-11C 1 1 1 1 2 n/a 3 3 1 1.68 PRO-11D 1 1 1 2 2 nJa 3 3 1 0.33 PRO-12 1 2 2 2 2 n/a 2 1 1 4.$0 PRO-13A 2 n/a 1 2 2 1 3 2 1 p.89 PRO-13B 2 nJa 2 2 2 3 2 3 3 0.14 PRO-13C 1 n/a 1 2 2 n/a 2 1 1 0.18 PRO-13D 2 2 1 2 2 2 2 1 1 1.59 PRO-13E 2 n/a 2 2 2 2 2 1 3 0.21 Table 9: continued � - PRO-13F 2 n/a 3 2 2 2 2 1 3 0.48 � PRO-13G 2 n/a 2 2 2 3 2 1 3 0.19 - PRO-13H 2 n/a 2 2 2 1 2 1 1 0.09 • PRO-13I 2 2 1 2 2 1 1 1 2 2.91 - PRO-14 1 n/a 1 2 2 n/a 2 1 1 2.24 . PRO-15 1 1 2 2 2 n/a 1 1 2 4.59 -� PRO-16A 2 2 2 2 2 1 3 3 3 0.41 �- PRO-16B 2 2 2 2 2 1 3 3 1 0.26 A ,- PRO-16C 2 2 2 2 2 1 3 3 1 0.48 � �_ PRO-16D 2 2 2 2 2 1 3 3 3 0.18 i- PRO-17 2 n/a 2 2 2 1 3 3 3 0.18 � n- SCH-2 1 1 1 2 2 n/a 2 1 1 0.92 A � � � o � o `, SCH-3 1 1 1 2 2 n/a 2 1 1 0.77 �`� �: SCH-4A 1 1 1 1 2 n/a 2 3 1 24.07 ' i��. SCH-4B 1 1 1 2 2 n/a 2 3 1 0.80 A� p SCH-SA 2 n/a 1 1 2 1 3 3 2 34.38 a � SCH-SB 2 n/a 1 1 2 1 3 3 2 3.35 � � M SCH-SC 1 n/a 1 1 2 n/a 3 3 1 1.01 < �— SCH-SD 2 n/a 2 2 2 1 3 3 2 1.55 � <>� � SCH-6 1 1 1 1 2 n/a 2 1 1 0.23 � SCH-7 1 1 1 2 2 n/a 2 1 2 6.87 - SCH-12 2 n/a 2 2 2 1 3 3 3 0.15 - SCH-13 2 n/a 2 2 2 1 3 3 3 2.73 1 SCH-14A 2 n/a 2 2 2 1 3 3 1 0.08 _- SCH-14B 2 n/a 2 2 2 2 3 3 1 0.01 `-" SCH-15 2 2 2 2_ 2 1 2 3 1 4.40 ._. SCH-16 2 n/a 2 2 2 2 3 3 3 0.13 , SCH-17 2 n/a 2 1 2 1 3 3 2 1.30 -- SCH-18 2 n/a 2 2 2 2 3 3 3 0.15 Table 9: continued h 0 � � a � �n �� o � � � � � � b� � o � A � A � � 3 � O `c b ao � w N -i:i � � 9' 0 , 1 *�_ � �. B �A - r ra p�'°�° " «g: a j. .aS, ` "'""�` .. � b 1 3�, t � . �'�'� �� 4.f? � � 0 @ i � '� � 1 � . 1 @ f � 3 9 9 �! � � �. s; �r s- �.�` � I ::n vi i�, R � 9 �, z { �' � <: , � . f �i ^��^ � �a 7 �"..,s ' � _:q. �3 ' .� ,-. v P � 3 3 �-s f x��. ° � '�.�' ,. ; az�%'�� _ ;� ,�.'� i� � r ; ..,� '.�, � ,.._, � �. ,,,�1��. �' a... ..`. :. .� ��;:;. .P � 3� , .-s. ��,,;1. � �� , , � ...,..,�' -7 :-�� 1 "$P � �€ 31 �3 r }. � ¢v � . C� e.. . ,� j � "t,_ . „ tt p �:_,-_ � � �?-, :�3� W �- : ' "'"a',` > g y^7 � � x, - rl �;�-.i€� , ra 3y'i � ��a�� s � � � o�` . � � �: a : �� °� : �;�� t i �� e �� i i o . �_, a a' � A �_ � o e ° � ' � a � �� w s . � ��,. �,,� �� ..�r � � :_.« >. .� ��. . � �� 1 : � �' �� . �� 1 1 �� • �� ' � ��0 ��0�� 1 1 � � ��0�,�■ 0�� 1 . • : �i �� ..�� ' � �� 1 . : C : �0 .�� , ' ��1�� 1 1 �� 1 1 � ��0 00�� 1 1 • �� 1 1 � ��■.�_�� [�C � �t-� � / 6.3.2 Wetlands of Special Interest for Protection Each of the wetlands were assessed according to the ten questions in this section of OFWAM. These questions are regarding the presence of federal or state listed threatened, endangered or sensitive species, existing management plans, conservation plans, protected mitigation areas, critical habitat, wetland reserve areas and the presence of uncommon wetland plant communities in Oregon. These questions were answered "no" for all the wetlands, therefore none of the wetlands in the study area qualify as"wetlands of special interest for protection". SIGNIFICANT WETLANDS DETERMINATION 7.0 Goal 17 Coastal Shorelands Planning Area 7.1 Statewide Planning Goal 17 (Coastal Shorelands) defines the Coastal Shorelands Planning Area (CSPA) as: All lands west of the Oregon Coast Highway (Highway 101) and; all lands within an area defined by a line measured horizontally 1,000 feet from the shoreline of estuaries and 500 feet from the shoreline of coastal lakes (DLCD, 1995). For the Reedsport LWI, the CSPA includes all lands seaward from Highway 101 (i.e. north and west of Highway 101), and extends 1,000 feet from the edge of the Umpqua River and Scholfield Creek, which are both tidally influenced coastal waters. The CSPA therefore includes the vast majority of wetlands within the project area. OFWAM was applied to all Goa15 and Goal 17 wetlands within the pxoject area. Wetlands within the CSPA, however, did not have the Locally Significant Wetland criteria applied, as those criteria only apply to Goa15 wetlands. -�- In addition, eight wetlands in the project area are designated Estuarine Resources under Goal 16 and in the local Comprehensive Plan. These esturarine wetlands are listed in Table 10. OFWAM was not applied to these wetlands. Table 10. Study Area Wetlands under Goal 16 Estuarine Resources �� PRO-1 SCH-1 SCH-8 SCH-9 SCH-10 SCH-11 SCH-26 SCH-29 �I: �v � �.�-� � �-� `�% � �`� +,� �-i �� -�.�-�- �-a-�-. / � �� . Local Wetl 7.2 Locatly Significant Wetlands Criteria On September l, 1996, the Land Conservation and Development Commission adopted a revised Statewide Planning Goal 5. Goa15 is the planning goal for natural resources, scenic and historic areas, and open spaces. Its purpose is to "protect natural resources, and conserve scenic and historic areas and open spaces". The goal requires local jurisdictions to inventory the natural resources covered under the goal, determine the significance of these resources, and develop plans to achieve the goal. In other words, local jurisdictions must adopt land use ordinances regulating development in and around significant areas. Local jurisdictions determining significant wetlands must use the criteria recently adopted by the Oregon Division of State Lands (ORS 197.279(3)(b)). This criteria identifies Locally Significant Wetlands. The significance criteria is divided into three sectians, as described below: Table 11. Criteria for Determining Locally Significant Wetlands ;xclusions: A wetland cannot be designated as significant if the answer to any of the criteria below is "Yes". 1 Is this wetland artificially created entirely from upland and: a. created for the purpose of controlling, storing, or maintaining storm water b. is used for active surface mining or as a log pond c. is a ditch without a free and open connection to natural waters of the state d. is less than 1 acre and created unintentionally from irrigation or construction e. created for the purpose of wastewater treatment, cranherry production, farm watering, sediment settling, cooling industrial water, or a golf hazard 2 Is the wetland or portion of the wetland contaminated by hazardous substances, materials or wastes as per the conditions of ORS 141-86 Mandatory Locally Significant Wetland Criteria: A wetland is locally significant if "Yes" is the answer to any of the criteria below. 1 Does the wetland provide diverse wildlife habitat? 2 Is the wetland's fish habitat function intact? 3 Is the wetland's water quality intact? 4 Is the wetland's hydrologic control function intact? 5 Is the wetland less than 1/4 mile from a water body listed by DEQ as a water quality limited water body (303(d) list) and is the wetland's water quality fitnction intact, or impacted or degraded? 6 Does the wetland contain a rare plant community? 7 Is the wetland inhabited by any species listed federally as threatened or endangered, or state listed as sensitive, threatened or endangered? 8 Does the wetland have a direct surface water connection to a stream segment mapped by ODFW as habitat for indigenous anadromous salmonids and is the wetland's fish habitat function intact, or impacted or degraded`? City ojReedsport Local Wetlands Inventory and Riparian Inventory Page - 34 - Optional Locatly Significant Wetland Criteria: local governments may identify a wettand as significant if "Yes" is the answer to the criteria below 1 Does the wetland represent a locally unique native plant community and provides diverse wildlife habitat or habitat for some species or has a intact, or impacted or degraded fish habitat function or has a intact, or impacted or degraded water quality function or has a intact, or impacted or degraded hydrologic control,f'unction. 2 Is the wetland publicly owned and used by a school or organization and does the wet provide e ducational uses? 7.3 7.3.1 Applying Significant Wetland Criteria to the LWI Study Area Goa15 Significant Wetlands T'he Localiy Significant Wetlands criteria were applied to all wetlands not included in the Goal 17 Coastal Shorelands Planning Area. Of these 13 wetlands, four satisfied the criteria ✓ for significant wetlands. Two of these four wetlands (SCH-4A and SCH-SB) extend partially into the Goal 17 CSPA. The results of applying the criteria are included in Appendix D. These wetland are shown on Table 12. � Table 12. Goa15 Wetlands in the Reedsport LWI PRO-16B SCH-4A* PRO-16C PRO-16D PRO-17 *=Locally Significant Wetland SCH-4B* SCH-SB* SCH-SC* SCH-19 SCH-20 SCH-21 SCH-22 SCH-23 Some of the wetlands met the criteria for significance because of diverse wildlife, intact fish habitat function, or presence of anadromous fish. Others met the criteria for water quality or hydrologic function because of hydrologic connection to other wetlands or waters of the state, adjacent or downstream development, or a high degree of wetland vegetation cover. Although other wetlands outside the CSPA are relatively valuable for some functions, they do not satisfy the significant wetlands criteria. 8.0 RIPARIAN INVENTORY RESULTS 8.1 Riparian Acreage and Distribution Twenty-seven (27) riparian assessments were conducted in the project area associated with Providence Creek, Scholfield Creek, and the Umpqua River. Each riparian area was assigned City of Reedsport Local Wetlands Inventory and Riparian Irtventory Page - 35 - �� , ��- zf� �� ;� �� a code based on drainage basin, a consecutive number beginning at the downstream end, and a modifier for right or left side (e.g. R-SCH-1 R, R-SCH-1 L). A data sheet was compiled which documents the existing riparian characteristics and establishes the riparian width based on potential tree height (PTH)(Appendix E). The majority of the assessments were on-site observation. Off-site assessments were based on observation from an off-site vantage point or review of maps and aerial photos. Potential tree heights were generally based on either pouglas fir (120-foot PTH}, Sitka spruce (120-foot PTH), or red alder (65-foot PTH). Riparian areas on steep slopes were generally forested or potentially forested with the coniferous trees. Riparian areas in flatter topographic areas were generally dominated by early successional trees such as red alder or willow. Figures SA-SC show the location of the riparian assessments, the riparian reaches, and the width of the riparian areas. Total riparian area for the study area is approximately 261.40 acres. Providence Creek has the majority of the ripazian area with 131.82 acres, followed by Scholfield Creek with 104.23 acres. The Umpqua River has only 25.35 acres, due to the fact that only one side of the river is within the study area and the riparian area is relatively narrow. The acreage for the riparian areas are suminarized in Table 13. Table 13. Riparian Acreage � � �.� � �� .� �.� � � � �l�pau�� a��ode E 5�� r��n Xen�;t�� T��arian� d�h'� �� , � �,� Y � -� sc, . ... �� . : �� p - �`��.? � ��y� . a��r�" : � a.r: ;. . .... � `�p �:*a , : , _ .. ., o., ' �..,�. h. ��. �`�', s ry.,,,��',�, F.. �y��.� ��..,_ � ��..� �� , �e:#�:. � - � s Providence Creek ^ R-PRO-1L 6000 120 16.53 R-PRO-1 R 2400 65 3.58 R-PRO-2R 6000 65 8.95 R-PRO-3L 1600 65 2.28 R-PRO-3R 1200 120 3.31 R-PRO-4L � 2400 120 6.61 R-PRO-4R 8800 65 13.31 R-PRO-SL 1600 65 2.39 R-PRO-SR 1000 65 1.49 R-PRO-6L 8800 120 24.24 R-PRO-6R 5600 120 15.43 R-PRO-7L 3600 120 9.92 R-PRO-7R 5600 120 15.43 R-PRO-8L 3200 65 4.77 R-PRO-8R 2400 65 3.58 Total 131.82 City of Reedsport Local Wetlands Imentory and Riparian Inventory Page - 36 - �"_--- • 1 � � � � w u [ o q� U V�i Q -,� �u�g Q b N � y O A ��a b x�� w�+c: � � O� ] T � � � � O � P� � V1 � �L/ r'�9 ti6J � � •� � �-id . r .q � Pro)aot BouaC�q �� 8tte lletLUd � Datazmin�Uon Ratsnh•d Bouad•r� .�� ^ Ott Sita 1eU•od e7� Dafermin�llon �lll!!!!!(!� Drdn�[� �..•.—.�.�,—.� Wpuf�n �ro� � Rip�d�n coaa R—PRO-1L S�myle Polnl d171� ►unatns �or !W� p oJ�cl v.. yre+laad n� . �r.nl trom LS. �x{on Dl�l�lon ef 8t�te IaoJ�. ��Ilaad� Alamin{ Md�tanc� �nnt p {r�m. TLf� �npt pro�nm b�upport�.d 4� � p�at from ll�e U.S, 6mlmnm�nlal PrOLlOUOT Il�lACJ YOJlr IIULhOrfl,� Ol LL! L7l�T 11�1l� AcL � t� I GRAPHIC SCALE � ��aa so.i. m r..� ProJeaLen: 9ouW�rn Oryon fYD9-f9Yi "ftllJ l7AY lJ C�UK YWI�IIYIIYIa rurcru�a� VIVLT 1lETLAND BDUNDARSES ARE APPROXIMATE AND SUH]ECT TO CHANGE Th1a map haa NOT been approved by the aeUand regulatory agenclee for permitling purpasea. You are ndviaed ta contacl the Oregon Divieion o[ Siate Landa and the U.S. Army Corpa of Eneineera with eny regulatory queetio¢e. There may De edditional wetlands within the etudy aree that have nol been idenlified. All weLlanda, whether mapped ot not, are eubjecl to Feder4l end State permil requiremente. There may aleo be areae of non—wetland wilhin areaa idenlified ae wellande on thie map. In nll casea, Faderel and State agenciea vrill use actuel [ield conditione, rather than thie map, lo determine weUand boundariee. o, a � V ' N F U d � � � ^ �i J a " 2 � � � � y m O m � L .•. , . � r �� . :: .• 7p*'JY �� :: '� ' �� .. / '•'•'� ;' _� ��; !y �xo va ' gVo M a t c. h 11,� e S i^� e e t 1 ,. .. : •: •. . . �i�x,� �Co..i� ;: ' . . _ � __ - - - +- - — - - - — .. .. . . . . -� — — .. , 'wx�yi - . i . � � I�IQ�,C_4`l�fYlc.��S�'�PPt C� '' ,^ �> •' ' ' ... : • V / • r4�k+ ''"'';;. '. . . . ..__. �. ' ,' � � � , , , , , ,: . . .. • •'• . . . .• • . . . "k�� ' ` . . i • . � � � '' P R-PRO-4R y , � -- _" . _ � T 1� •� PR . 1 �� PR4-B ,= I � `I� .;.•.�. .•. :� g . . . ` . . . . plio�i Io � '�' � �... �� u Lnd -' .� I p.. . � : ~ � ••�. ..., '. � . � .... • a..�� 41 � • �! tinc ..u.ne -: � •' . JOx upl na � . . . . Q , ♦ � `4 .;$,�1 r o .` � � , �� ^o PR0�10 \ tL' 4 � ��, �� /�� py . 2. '�.,�,.,�..•.i � /� / ua'n .-�' "' �' Cb � ;. . /� ��n S y� SCH- ' ., �/ �/ m� w o ♦ ..+�' � Ul � � ' � :• ',. . /� !/� �/� �/ ,� � ; g � '�: :� • . �'•. . .. . .: '� � - 0-5R I � R-SCH- i L ' . e ��i � �, ; � �n .� , ... J PRO-1 � �. : R PR � I ,- .•. :�•• '�'� ... �i ��Ct e � ( " � -� x � � PRO ia _�,;� : ..' ! � // �� r l ea // %( i� x�� -� � ; . .�:.. � : 1 w�a� � ' -iac� ' .. .._..._._._._.. S�`S .'�, o �� * , � � �osq p., R-PRO-BL . ' `. ;, � � � n _ , � ` ;. . . � . PRO 13F ,. ,, �I ,U ' � �/ JC 0. a F a , ., � �� -5L . Prto 13E - CS � .-: //��/ / l . ' � % � I� .�'� //��; � R-SCH-1 � :. i� r� . � PRO- ��PRO-13H �PRO-13G r 1 � :� /��/ .� �( � � � Fore�t Rfli� � .E' �// �/ CH 1 � ccuntr� C�ub / � . � / � •� C}i-S � ; pR0 . .IC' �. ��',R . 3I r / �, - �! � / : � �"� a �.:;::.:: :: ,, . o 32 33 � � PRO-13N � � :. /j �/� ' H � 5 4 � . �• '� � �/� ..,;•' PROP 13A ;;.. .:. ..� •'. .. : . �/ �/ ' - - / .. . _ H � � ` ,.; :.: • ...�• ' , . � : . � �� (�� _ �� ~✓' W ' �L� � �/ / . S �� / j �/ ��/ � rq � � � , �i / /` /� � F-d I :.; ^ � /� �/ . . .. !� � f /� / /� },�,p � �.•'- •'�' � r`�j�j�� • i� �� f �/� � �/ �� / . � . .,... • Ur+' � � r s � �,� � � ' � � '� ' i / / d� . .•. :-:�"• � _� � /� /� �' �� /�� !�� / Q„ y r, i i� i� r i (-' u� �-4 1 �1 G G�'�'� � � ° /// \ � C� � .. �� ' . , :: .��A �;�n`� '� � ��, �� S �:� � ' z� � .. . .. . � � �,�J' �� .S �-4A� � � , � �' �4 "' � � R-SCH • .-a � R-PRQ-BR .° R-SCH-3L � � -PR0-8 o . . . �:::� ��R H-3R ' .•. •'• ::.:.•••• .....•.� • . .�.., . . � PRO-17 � , ;,: . . .� � '•'�' � � .. . . .•:�' f � - • ��.. . : . _ ......:..::: : ` \ ' ♦, 0-IB i `♦ � I � � � ^�� r` � � � . � y a , 0 ` j 1; o � � f . � � � � � . � � � ' i �' / , � O � • . ^• 1 � °� � , . . �� s � r �1� w � � �n� � � � � C p � � i �.�� r r� o o i THIS ldAP (S FOR PLANNlNG PURPOSES ONLY � � ^ NETWND BOONDARIES ARE APPROXfMATE AND SUH)ECT TO CIiANGE i ? j Thia map has NOT been epprovcd Dg the wetland regulatory agencies �•. Pro)ec� Bouna�r� ��++�� on 3�4 M�U■ad GRAPHIC SCALE for permitting purpoeee. You are adviaed Lo contect Lhe Oregon Divinion � D°�*��"n � ,,, ,,, ,,,, of State Lands and lho U.S. Army Corpa of Engineera wSth any � •�bnhad 8ound� .�+� �� Ott 81L R�tS�� ei7� �und/p� tor tLl� proyact .r�� peovlEad 4� � �r�nt !rom tAe On�on ry p �/U//pj// 95.hlon of Sbt.� I� ne., �.Wna. Piamin` e..�.�no. ir.nt ro�e.sn, regulatory queeLione. There may be edditional vetlandn wtlhin the atudy � 7N. �r.nt proinm �. .�ppee�.a y. a� Iroro �n. u.s, � tiroam.n�.t axea that have not been identified. All wetlanda, ahether mapped or � � nr.f�ais —•—•—•—•—•—�— ��u+ �+•� � Proaouon µanaJ �aa.r .ut6odt� ot t�e ci.•» �•lar AoL not, ere eubject to Federal end State permit requiremenls. There may Z ecw �e r«i alno be arene of non—wetland xilhin areae identitied ee aetlande on � � Rtp�riro c a. R S�mple Palat � thia map. ln ell caaea, Federa] and SLete egenciee will use actuai field Q `t O pro�.ouoo: so�thero Ora�on 19B3-/YYL conditione, sathes CIl6p f.hie map, to determine netland boundariea. O m �, i Matchl'i�e �_heet ? Mat�hline� sheet .I ' . •� � I ' --- � ' � I � � . I � . o�: � I � �44;G�1 � +� � �.� , Q� � i �� / SCH- .•: i' . x—scx— i i . � . _. :.. . hI . ,' / / ,; .:.:'-�'�/�� ! -- ' �'' � �i� �,� i� � '� -� i� � ;�o i � •��i,S°i I d .� ac�it •: // �/ i � .;'' i� �i � . '' R-S .:: ii �r �� I _ �•' , �i �� •' � _ . �e �___� .] � I� � . .� . �� . `G, \ � ; /,. . , ��—�—,=• i / ��' , �. .� J . � � . V w 0 C^ my �� \ ;o _ »�� yo A Qan q � µ x�� W� �� a r�"� � O � � � � � O � � � � � � � � � P� � � c� � . r .., � I j � �r 'I j� I �� I� I �� .� 1..____�� ProJeol Bound�r� � � � � � � � On 811e �eU�nd � D�tarmin�tfan 1l�l�nh�d Bound�r� .��' Of! Slle MaU�nd ej7JJ� ►uadln{ for lA/� p oJeot wu pro.ided E� � �r�nt trom lh� Orc�on Odatmfn�Uan flO!!!!!l!� �ti�lon o( Slale IauC�, �apand� Pl�mla[ M�b4noa �r�nl p ��m. Thl+ p�at pro�nm i� wDD�wd 67 �r ant troro lha U.B. 6n�4ranmeal�i p�� _,_.�._.._•—•— �tlpaH�n Are� � Pro�*cUon A�anq under �ul6orly of lha Cle�n If�ler AcL wv.�i.n coa. R—PRO-1L s.mpi. pamc � � � i CRAPHIC SCALE uan !wb lo Ml PtoJeclion: SoulL�rn Ora�on 1DB9-IDY1 THIS NAP IS FOR PLANNING PURPOSES ONLY 1fETLflND DOUNDARIES ARE APPROXIMATE AND SUH.IECT TO CHANCE Thia map hae NOT been epproved by the weWand reguletory agenciee for permitting purposee. You ere edvieed to contact Lhe Oregon Divieion of Stete i.anda and the U.S. Army Corpe of Engineers with any regulalory queefione. There may be additional wetlanda within the etudy area thai have not been identitied. All wetlenda, wheiher mapped or nol, are eubjecl Lo Federal and State permit roquiremonte. There may aleo be areae of non—wetland within areae idenlified ee wetlande on thie mep. !n ell caeee, Federa! and State egenciea will uee actusl field condilione, rather Lhen Lhie map, to determine weUand boundariee. R-UMP-3L �- � U • N v u � �; � � � � a � .. 2 � � O 2 �h O m O m > L Table 13. Continued ��ap�a��an�.�r,e�� Gorle ��. Riparian iength Ri,,�a�rnan �v��b� '�� A�ea , ,. � : '' (feet) . :... . : f(feet) . ,ti- r � , Cacres) ` Scholfield Creek R-SCH-1 L 6800 120 18.73 R-SCH-1 R 6800 65 10.15 R-SCH-2L 4600 65 6.86 R-SCH-2R 6400 65 9.55 R-SCH-3L 3200 120 8.81 R-SCH-3R 4400 120 12.12 R-SCH-4L 3200 120 8.81 R-SCH-4R 5000 120 13.77 R-SCH-SR 5600 120 15.43 Total 104.23 Umpqua River R-UMP-1 L 5600 65 8.36 R-UMP-2L 4000 65 5.97 R-UMP-3L 4000 120 11.02 Total 25.35 Riparian Acreage Total 261.40 8.2 Riparian Assessment Results An assessment of four riparian functions, water quality, flood management, thermal regulation, and wildlife habitat, was conducted for each of the riparian areas. The questions and answer sheets for the riparian assessment are included in Appendix F. The riparian' functions are described in Section 3.4.3. The riparian assessment is completed by answering a series of questions relating to the riparian functions. Each answer is assigned a score that reflects its overall importance to the function. Questions that were answered "a" received a higher score than "c" answers. After the score was totaled for each function, it was assigned a rating of high (I�, medium (M), or low (L) according to the results . Table 14 (next page) summarizes the results of the riparian quality assessment. City of Reedsport Loca! Wetlands Inventory and Riparian Inventory Page - 37 -