Loading...
HomeMy WebLinkAbout20071394 Ver 1_Restoration Plan_20070815n ' RESTORATION PLAN 1 n n n I Prepared for: ,~. r ,~ 1'~t'()S~StClll NCDENR-Ecosystem Enhancement Program 2728 Capital Boulevard, Suite 1H 103 Raleigh, North Carolina 27604 A~ ~ ~~~~~~ F1~JC~ 1 ~ 2QQ7 July 27, 2007 ~E~R. w~ar~R c~.:a~,irv ' !~q ~~Q $TQ~+~-Vg7~t 9RANCH 0 UT TO BEAR CREEK STREAM RESTORATION PROJECT Chatham County, North Carolina Project ID No. 060684901 Project ID No. 060634901 UT to Bear Creek Stream Restoration Project, Chatham County, Nort1~ Carolina RF~STORATfON PLAN Prepared by: KO c~ ASSOCIATES, P. C. Consulting Engineers Ko & Associates, P.C. 1011 Schaub Drive, Suite 202 Raleigh, North Carolina 27606 919.851.6066 919.851.6846 (fax) R. Kevin Williams, PE, PLS, CPESC, CPSWQ Project Engineer/Manager a KO & ASSOCIATES, P. C. Page i Conrultin~~ En~,fineers Project ID No. 060684901 UT to Bear Creek ~lrealll Restoration Project, Chatham County, North Carolina RES"TORATION PLAN TABLE OF CONTENTS EXECUTIVE SUMMARY ....... I ...................................................................................................... 1.0 PROJET SITE LOCATION ........................................................................................... .. 1 1.1 DIRECTIONS TO PROJECT SITE .................................................................................... .. 1 1.2 USGS HYDROLOGIC UNIT CODE AND NCDWQ RIVER BASIN DESIGNATION ........... .. 1 1.3 PROJECT VICINITY MAP ............................................................................................. .. 2 2.0 WATERSHED CHARACTERIZATION ...................................................................... .. 3 2.1 DRAINAGE AREA ....................................................................................................... .. 3 2.2 SURFACE WATER CLASSIFICATION/WATER QUALITY ............................................... .. 3 2.3 PHYSIOGRAPHY, GEOLOGY, AND SOILS ..................................................................... .. 3 2.4 HISTORICAL LAND USE AND DEVELOPMENT TRENDS ................................................ .. 5 2.5 THREATENED AND ENDANGERED SPECIES ................................................................. .. 5 2.6 CULTURAL RESOURCES :............................................................................................ .. 6 2.7 POTENTIAL CONSTRAINTS ......................................................................................... .. 7 2.7.1 Property Ownership and Boundary ................................................................... .. 7 2.7.2 Project Access ................................................................................................... .. 7 2.7.3 Utilities .............................................................................................................. ..7 2.7.4 FEMA/Hydrologic Trespass ............................................................................. .. 7 3.0 PROJECT SITE STREAMS (EXISTING CONDITIONS ........................................... .. 8 3.1 CHANNEL CLASSIFICATION ........................................................................................ .. 8 3.2 DISCHARGE ................................................................................................................ ..8 3.3 CHANNEL MORPHOLOGY ........................................................................................... .. 9 3.4 CHANNEL STABILITY ASSESSMENT ............................................................................ .. 9 3.5 BANKFULL VERIFICATION ......................................................................................... 10 3.6 VEGETATION .............................................................................................................. 10 4.0 REFERENCE STREAMS .............................................................................................. 12 4.1 WATERSHED CHARACTERIZATION ............................................................................. 12 4.2 CHANNEL CLASSIFICATION ........................................................................................ 12 4.3 DISCHARGE ................................................................................................................ 12 4.4 CHANNEL MORPHOLOGY ........................................................................................... 12 4.5 CHANNEL STABILITY ASSESSMENT ............................................................................ 12 4.6 BANKFULL VERIFICATION ......................................................................................... 13 4.7 REFERENCE FOREST ECOSYSTEM ............................................................................... 13 5.0 PROJECT SITE WETLANDS (EXISTING CONDITIONS,~ :...................................... 15 5.1 JURISDICTIONAL WETLANDS ...................................................................................... I S S.2 HYDROLOGICAL CHARACTERISTICS ........................................................................... 1S 5.3 SOIL CHARACTERISTICS ............................................................................................. 15 S.4 PLANT COMMUNITY CHARACTERIZATION ................................................................. 16 a KO & ASSOCIATES, P. C. Page ii Conrrdtin~ En~~ineer~ Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 0 G I C ii 0 i 6.0 PROJECT SITE RESTORATION PLAN ...................................................................... 17 6.1 RESTORATION PROJECT GOALS AND OBJECTIVES ...................................................... 17 6.1.1 Designed Channel Classification ...................................................................... 17 6.1.2 Stream Restoration Activities ........................................................................... 18 6.1.3 In-stream Structures .......................................................................................... 21 6.1.4 Target Buffer Communities .............................................................................. 21 6.2 SEDIMENT TRANSPORT ANALYSIS ............................................................................. 21 6.3 HEC-RAS ANALYSIS ................................................................................................ 22 6.3.1 Bankfull Discharge Analysis ............................................................................ 22 6.3.2 No-Rise ............................................................................................................. 23 6.3.3 Hydrologic Trespass ......................................................................................... 23 6.4 SOIL RESTORATION .................................................................................................... 23 6.4.1 Floodplain Soil Scarification ............................................................................ 23 6.5 NATURAL PLANT COMMUNITY RESTORATION ........................................................... 23 6.5.1 Planting Plan ..................................................................................................... 25 6.5.2 Invasive Species Management .......................................................................... 26 7.0 PERFORMANCE CRITERIA ....................................................................................... 27 7.1 STREAMS ................................................................................................................... 27 7.1.1 Stream Success Criteria .................................................................................... 27 7.1.2 Stream Contingency .......................................................................................... 28 7.2 VEGETATION .............................................................................................................. 28 7.2.1 Vegetation Success Criteria .............................................................................. 28 7.2.2 Vegetation Contingency .................................................................................... 29 7.3 SCHEDULING AND REPORTING ................................................................................... 29 8.0 REFERENCES ............................................................................................................... 30 ' a KO & ASSOCIATES, P. C. Cunsuhing En~~incers Page iii Project [D No. OE06849O1 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATIC)N PLAN List of Tables Table 1. Project Restoration Structures and Objectives ............... Table 2. Drainage Areas .............................................................. Table 3. USDA Soils Mapped within the Project ........................ Table 4. Land Use of Watershed .................................................. Table 5. Federally Protected Species for Chatham County ......... Table 6. Reference Forest Ecosystem .......................................... Table 7. Planting Plan .................................................................. Table 8. Project Scheduling and Reporting ................................. ................................................. 1 ................................................. 3 ................................................. 4 ................................................. 5 ................................................. 6 ............................................... 14 ............................................... 25 ............................................... 29 Appendices Appendix A. Figures Figure 1 Vicinity Map Figure 2 Watershed Map Figure 3 Soil Survey Map Figure 4 Hydrological Features Map Figure 5 Landrum Creek Vicinity Map Figure 6 Landrum Creek Watershed Map Figure 7 Landrum Creek Soil Survey Map Figure 8 Reference Site Vegetative Communities Map Appendix B. Sheets Sheets 1-lA Existing Conditions Sheets 2-2C Proposed Conditions Sheets 3-3A Longitudinal Profile Sheet 4 Planting Plan Appendix C. Existing Conditions Site Photographs Appendix D. Morphological Stream Characteristics Appendix E. Restoration Site USACE Routine Wetland Determination Data Forms Appendix F. Restoration Site NCDWQ Stream Classification Form Appendix G. Restoration Site Concurrence Letters Appendix H. Sediment Transport Analysis Appendix I. Reference Site Photographs Appendix J. Reference Site NCDWQ Stream Classification Form Appendix K. HEC-RAS Analysis Appendix L. Regional Curve Plots Appendix M. CE Documentation a KO & ASSOCIATES, P. C. Page ~~ Cunstdlin~ En~,~ineet~ Project ID No. 06068901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN ' EXECUTIVE SUMMARY The North Carolina Ecosystem Enhancement Program (EEP) is currently developing stream restoration plans for the UT to Bear Creek Stream Restoration Project (Project) located on the southeast side of Highway 902 between the town of Bear Creek and Johnsons Crossings. The Project is located in United States Geological Survey (USGS) Hydrologic Unit (HU) 03030003070050 (North Carolina Division of Water Quality [NCDWQ] Subbasin 03-06-12) of the Cape Fear River Basin and will service the USGS 8-digit HU 03030003. The Project is not located within a Targeted Local Watershed. This document details planned stream restoration activities on the Project. An approximately 32 acre conservation easement will be placed on the Project to incorporate all restoration activities. The Project contains Bear Creek, two unnamed tributaries (UT) to Bear Creek (Northern and Southern UTs), riparian buffer, floodplain, and upland slopes. The Project watersheds are ' characterized primarily by agriculture and forest land with scattered residential and business development. Site land uses, including the removal of riparian vegetation, grazing by livestock, and a lack of exclusionary fence for livestock adjacent to the Northern and Southern UTs have resulted in degraded water quality and unstable channel characteristics (stream incision, erosion, and bank collapse). The primary goals of the Project focus on improving water quality by reducing nutrient loading from the on-site cattle operation, reducing excess sedimentation input from channel banks, increasing the attenuation of floodwater flows, and restoring and enhancing aquatic and riparian habitat. These goals will be accomplished through the following objectives: • Reduce point and non-point source pollution associated with an on-site cattle ' operation by fencing out cattle from the stream and riparian buffer, and by providing a vegetative buffer on stream banks and floodplain to treat surface runoff. Virtually all research shows vegetated riparian buffers substantially decrease pollutants such as nitrate-nitrogen, phosphorous, chloride, ammonium, and sedimentation prior to entering the waterway. • Stabilize on-site streams by restoring a stable dimension, pattern, and profile so they 1 will transport watershed flows and sediment loads without aggrading or degrading. • Improve aquatic habitat by enhancing stream bed variability, providing shading/cover t areas within the stream channel, and introducing woody debris in the form of rootwads, Iog vanes, and log sills. • Enhance wildlife habitat by vegetating the existing fescue dominated riparian buffers 1 with native trees, shrubs, herbs and grasses. Forest vegetation species were selected by studying a Reference Forest Ecosystem located immediately upstream of the Project and reviewing Piedmont/Low Mountain Alluvial Forest species listed in Classification of the Natural Communities of North Carolina: Third Approximation (Schafale and Weakley 1990). Executive Summary KO & ASSOCIATES, P.C. page 1 Coirsullin~,~ En~incus Project IU No. 0606S49t)1 UT to Bear (.'reek Stream EZestoration ['reject, Chatham County, North Carolina RES"TORATION PLAN • Create wildlife corridors through agricultural lands which have significantly dissected the landscape. The corridors will provide connectivity to a diversity of habitats including mature forest, early successional forest, stream-side forest, riparian wetlands, and uplands. The proposed restoration plan, depicted on Sheets 2 through 2C, is expected to produce a restored length of 3,132 linear feet of the Northern UT and 1,745 linear feet of the Southern UT. Additionally, 0.39 acres of riparian wetlands will be enhanced by supplemental vegetation plantings, 15 acres of buffers along the Northern and Southern UTs will be planted with native species, 3.23 acres of buffers along Bear Creek will be planted with native species, and 12.15 acres of buffers along Bear Creek will be preserved. This document represents a detailed restoration plan summarizing activities proposed within the Project limits. The plan includes: 1) descriptions of existing conditions; 2) reference stream and forest studies; 3) restoration plans; and 4) Project monitoring and success criteria. Upon approval of this plan by EEP, engineering construction plans will be prepared and activities implemented as outlined. Proposed restoration activities may be modified during the civil design stage due to constraints such as access issues, sediment-erosion control measures, drainage needs (floodway constraints), or other design considerations. Executive Summary a KO c4c ASSOCIATES, P.G Page I1 Consulting En~,~inee~s Project ID No. 060684901 UT to Bear G°eek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN r C 0 C r 1.0 PROJET SITE LOCATION: The UT to Bear Creek Stream Restoration Project (Project) is located south of Siler City, in Chatham County, North Carolina. The Project is located immediately east of SR 1009 (Bear Creek Church Road) and southeast of NC Highway 902 between the town of Bear Creek and Johnsons Crossroads (Figure 1). The Project includes Bear Creek and two unnamed tributaries (UTs) to Bear Creek (Northern and Southern UTs). The Latitude and Longitude (WGS 84 datum) of the mid-point for the restoration channels are 35.609497101°N and 79.387817088°W for the Northern UT and 35.609497101°N and 79.394411255°W for the Southern UT. Approximately 4,877 linear feet of stream are to be restored. Table 1 describes the Project restoration structures and objectives. Table 1. Project Restoration Structures and Objectives Project ID No. 060684901 (UT to Bear Creek Restoration Proiectl Restoration Existing Designed Segment/ Station Range Restoration Priority Linear Linear Comment Reach ID Type Approach Footage/ Footage/ Acrea a Acrea e Bear Creek __ Buffer __ __ 12 15 ac Preservation . Vegetative Buffer plantings to Bear Creek -- Enhancement -- -- 3.23 ac pasture areas within 50' of Bear Creek 10 + 00 - 15+50 PI SSO If 15+50 - 16+75 ___ _____ PII 125 if Northern UT 16+75 - 19+00 i PI 225 If Restore channel to Bear Creek 19+00 - 23+00 Restorat on ------PII------ 2,832 if 400 if on new location 23+00 - 39+75 PI 1,675 if 39+75 - 41+32 _ ____ PII 157 if Southern UT 10 + 00 - 23+50 R i PI 1 63 1f 1 350 If ' Restore channel to Bear Creek 23+50 - 27 + 45 estorat on ---- ------------- PII , 5 395 if on new location Riparian Supplemental Wetlands '- Enhancement -- 0.49 ac 0.39 ac plantings to existin wetlands 1.1 Directions to Project Site: From Siler City, North Carolina take US Highway 421 South for approximately 8 miles. Turn right on NC Highway 902 West and proceed approximately 2 miles. The Project is located on the southeast side of NC Highway 902 between Bear Creek and Johnsons Crossing across from Central Chatham High School. 1.2 _USGS Hydrologic Unit Code and NCDWQ River Basin Designation: The Project is located in Chatham County, North Carolina within United States Geological Survey (USGS) Hydrologic Unit (HU) 03030003070050 (North ' ~ KO & ASSOCIATES, P. C. a v sr ~ ~' C n r llrn~, bn~,rneers Project ID No. OhO6849~1 UT to Bear Creek Stream Restoration Project, C'hathain County, North Carolina RES"TORATION PLAN r Carolina Division of Water Quality [NCDWQ] Subbasin 03-06-12) of the Cape Fear River Basin and will service the USGS 8-digit HU 03030003 (USGS 1974). The Project is not located wrthin a Targeted Local Watershed (NCWRP 2001). NCDWQ Subbasin 03-06-12 of the Cape Fear River Basin includes the Rocky River, Loves Creek, Tick Creek, and Bear Creek. This subbasin is located in the Carolina Slate Belt and is characterized by seasonally low flowing streams (NCDWQ 2005). 1.3 Protect Vicinity Map: The Project vicinity is depicted on Figure 1. i C C a KO & ASSOCIATES, P. G 2 ' Consullin~ En~,~ineers Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, C1latham County, North Carolina RESTORATION PLAN ' 2.0 WATERSHED CHARACTERIZATION 2.1 Drainage Area: Table 2 depicts drainage areas of Project streams (Figure 2). Onsite elevations range from a high of 440 feet National Geodetic Vertical Datum (NGVD) at the upstream extent of the Project to a low of approximately 410 feet NGVD at the downstream extent of the Project. Table 2. Drainage Areas Proiect ID No. 060684901 (UT to Bear Creek Restoration Proiectl 1 ii ii 1 Stream Draina a Area Reach Order Acres S uare Mile(s) Bear Creek at South UT to Bear Creek) 4t 14020 21.9 Bear Creek (at North UT to Bear Creek) 4` 16034 25.0 North UT to Bear Creek (at NC 902) 2° 1385 2.16 North UT to Bear Creek (at Bear Creek) 2° 1510 2.36 South UT to Bear Creek (at NC 902) 1st 175 0.27 South UT to Bear Creek (at Bear Creek) 1 s` 215 0.34 2.2 Surface Water Classification/Water Quality: Bear Creek has been assigned Stream Index Number 17-43-16, a Best Usage Classification of C, and is not rated for its intended uses (NCDWQ 2005, NCDWQ 2007). Class C waters are suitable for aquatic life propagation and survival, fishing, wildlife, secondary recreation, and agriculture. Secondary recreation includes wading, boating, and other uses involving human body contact with water where such activities take place in an infrequent, unorganized, or incidental manner. Bear Creek is not listed on the draft 2006 or final 2004 303d lists (NCDWQ 2006a, 2006b) 2.3 Physiography, Geology, and Soils: The Project is located within the Piedmont of North Carolina in the Carolina Slate Belt ecoregion. The Carolina Slate Belt is characterized by dissected, irregular plains, some hills, linear ridges, isolated monadnocks, and low to moderate gradient streams with mostly boulder or cobble substrates (Griffith 2002). Soils that occur within the Project limits, according to the Soil Survey of Chatham County, North Carolina are depicted in Figure 3 and described in Table 3 (USDA 2006). ' a KO c~ ASSOCIATES, P. C. Consnhin~; En~;rnurs 3 Project [D No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham C"ounty, North Carolina RESTORATION PLAN Table 3. USDA Soils Mapped within the Project PrOleCt 1D NO. 060684901 (UT to Rear Creek Rectnratinn PrniP~tl Soil Series Hydri~ Status Family Description This series consists of moderately deep, well-drained, Badin Nonhydric Typic moderately permeable soils on ridges and side slopes. Hapludults Depth to the seasonal high water table is greater than 6 feet. This series consists of very deep, somewhat poorly Chewacla Class B Fluvaquentic drained, moderately permeable soils on floodplains. Dystrudepts Depth to the seasonal high water table occurs at 0.5 to 1.5 feet. This series consists of moderately deep, somewhat Aquic poorly to moderately well-drained, slowly permeable Cid Nonhydric Hapludults soils on interstream divides, broad ridges, drainageways, and heads of drainageways. Depth to the seasonal hi h water table is 1.5 to 2.5 feet. This series consists of very deep, well-drained, Georgeville Nonhydric Typic moderately permeable soils on ridges and side slopes. Kanhapludults Depth to the seasonal high water table is greater than 6 feet. This series consists of deep, somewhat poorly to Aquic moderately well-drained, very slowly permeable soils Lignum Class B Hapludults on interstream divides, broad ridges, drainageways, and heads of drainageways. Depth to the seasonal hi h water table is 1.0 to 2.5 feet. Typic This series consists of deep, well-drained, moderately Nanford Nonhydric Kanhapludults permeable soils on ridges and side slopes. Depth to the seasonal hi h water table is reater than 6 feet. Fluventic This series consists of very deep, well-drained, Riverview Class B Dystrudepts moderately permeable soils on floodplains. Depth to the seasonal hi h water table occurs at 3 to 5 feet. Typic This series consists of very deep, well-drained, State Nonhydric Hapludult moderately permeable soils on stream terraces. Depth to the seasonal hi h water table occurs at 4 to 6 feet. This series consists of very deep, poorly drained, Wehadkee Class A Fluvaquentic moderately permeable soils on floodplains. Depth to Endoaquepts the seasonal high water table occurs at the surface to 1 foot. ~,rass H = nyarrc sons; Mass is = nonnyarrc sous, whrch may contain hydnc soil inclusions a KO 8c ASSOCIATES, P. C. 4 Cunsuhin~~ En~,•ineei ~ Project ID No. 0606f34901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 2.4 Historical Land Use and Development Trends: Land use within the Project watershed is characterized primarily by agriculture, forest, impervious surfaces, and sparse residential/commercial development (Table 4 and Figure 2). The adjacent US Highway 64 corridor is developing between Siler City and Pittsboro and is expected to continue expanding into this subbasin (03-06-12) (NCDWQ 2005). Table 4. Land Use of Watershed Proiect ID No. 060684901 (UT to Bear Creek Restnrati~n Proiectl Land Use Acrea a Percenta e Develo ed Land 300 2 A ricultural Land 6250 40 Forest Land 9210 58 TOTAL 15760 100 2.5 Threatened and Endangered Species: Species with a Federal classification of Endangered or Threatened are protected under the Endangered Species Act (ESA) of 1973, as amended (16 U.S.C. 1531 et seq.). The term "Endangered species" is defined as "any species which is in danger of extinction throughout all or a significant portion of its range," and the term "Threatened species" is defined as "any species which is likely to become an Endangered species within the foreseeable future throughout all or a significant portion of its range" (16 U.S.C. 1532). Based on the most recently updated county-by-county database of federally listed species in North Carolina as posted by the United States Fish and Wildlife Service (USFWS) at http://nc-es.fws.gov/es/countyfr.html, four federally protected species are listed for Chatham County. Table 5 lists the federally protected species for Chatham County and indicates if potential habitat exists within the Project for each. ' a KO ~ ASSOCIATES, P. C. 5 Consuhing En~~ineers Project ID No. 060684901 UT to E3ear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN Table 5. Federally Protected Species for Chatham County Proiect ID No. 060684901 (UT to Bear Creek Restoration Proiectl Habitat Common Name Scientific Name Status Present Biolo ical within Conclusion Pro'ect Vertebrates Bald eagle Haliaeetus Threatened No No Effect leucoce halus Cape Fear shiner Notropis Endangered No No Effect mekistocholas Red-cockaded wood ecker Picoides borealis Endangered No No Effect Vascular Plants Ha erella Ptilimnium nodosum Endangered No No Effect *1ndangered = a taxon "in danger of extinction throughout all or a significant portion of its range"; Threatened = a taxon "likely to become endangered within the foreseeable future throughout all or a significant portion of its range". No potential habitat is located in the Project for bald eagle, Cape Fear shiner, red- cockaded woodpecker, or harperella. In addition, no known occurrences for the species are documented by NCNHP within 3 miles of the Project; therefore, this Project will have no effect on these species. Critical habitat for the Cape Fear shiner has been designated on Bear Creek in Chatham County, the Rocky River in Chatham County, the Deep River in Chatham and Lee Counties, Fork Creek in Randolph County, and the Deep River in Randolph and Moore Counties. No designated critical habitat occurs within the Project reach of Bear Creek. The closest reach of designated critical habitat is greater than 11 miles downstream from the Project. 2.6 Cultural Resources: Pursuant to Section 106 of the National Historic Preservation Act and the Advisory Council on Historic Preservation's Regulations for compliance with Section 106 (36 CFR Part 800) concurrence will be received for the Project from the North Carolina State Historic Preservation Office (NCSHPO) prior to initiating Project implementation. No known archaeological sites or structures of historical or architectural importance were identified during field investigations. a KO & ASSOCIATES, P. C. 6 Cunsrrltin~> End>irrcers Project ID No. 060684901 LIT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATIC)N PLAN 2.7 Potential Constraints: The presence of conditions or characteristics that have the potential to hinder restoration activities at the Project were evaluated. The evaluation focused primarily on the presence of hazardous materials, utilities and restrictive easements, rare/threatened/endangered species or critical habitats, and the potential for hydrologic trespass. Existing information regarding constraints was acquired and reviewed. In addition, any Project conditions that have the potential to restrict the restoration design and implementation were documented during the field investigation. Environmental screening of the Project was conducted during field investigations to evaluate the presence of potentially harmful environmental hazards. Environmental concerns under review include past or present storage of hazardous or regulated materials and/or waste, illicit dumping of solids or hazardous waste, and degradation of surface waters that may have a negative impact on the environment. Visual screening for objects such as storage tanks, ' debris, hazardous materials, and evidence of waste burial was conducted through field reconnaissance. No evidence of storage tanks or illicit dumps was identified during field investigations. In addition, no point source discharges were identified. Based on field reviews, hazardous materials will not be a hindrance to proposed project activities. 2.7.1 Property Ownership and Boundary The Project is contained in a parcel owned by Mr. James R. Weaver. The permanent conservation easement will total approximately 32 acres. 2.7.2 Proiect Access Numerous potential access points have been located along the property boundary of NC Highway 902, including existing dirt roads. There are no significant constraints because the Project is in a rural. area. 2.7.3 Utilities No existing utilities or easements will be disturbed/impacted by this Project. L 2.7.4 FEMA/Hydrologic Trespass The HEC-RAS analysis indicates that the restoration design will result in a no-rise in the 100-year floodplain water surface elevations outside of the Project area. The results of this analysis affirm that hydrologic trespass to adjacent properties will not occur. The HEC-RAS mod is discussed in more detail in Section 6.3 (HEC-RAS Analysis). ' ~ KO & ASSOCIATES, P. C. 7 ,- Consrdrrrt~, 6n~uxers Project ID No. 06068901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 3.0 PROJECT SITE STREAMS (EXISTING CONDITIONS): There are two streams (Northern UT and Southern UT) in the Project that were studied for restoration potential. Existing conditions have resulted in degraded water quality, loss of aquatic and terrestrial habitat, reduced nutrient and sediment retention, unstable channel characteristics (mass wasting of channel banks, sediment loading, and the loss of bed form diversity), and channel banks and floodplain that have been denuded of native trees and shrubs at the Project (Figure 4 and Sheets 1 through lA). 3.1 Channel Classification: Stream geometry and substrate data have been evaluated to classify existing stream conditions, utilizing fluvial geomorphic principles (Rosgen 1996). Appendix D provides a summary of measured stream geometry attributes for the Northern and Southern UTs under existing conditions (considered to be unstable), in addition to stable stream attributes (reference and proposed). Data collected during a Rosgen Level II survey were used to classify the Northern and Southern UTs as an unstable E4-type channels that are both transitioning towards a G4-type channel. G-type channels typically display low entrenchment and width-to-depth ratios, and a low sinuosity. This can lead to higher shear stresses on channel banks and bed, and an over abundance of stream power, which leads to channel degradation. Evidence of channel degradation can be seen in the existing conditions photographs (Appendix C). The primary causes of degradation in both channels stems from cattle access and the denudation of vegetation along the channel banks from cattle grazing. The second descriptor, 4, indicates that channel materials are dominated by gravel. It should be noted that the dominant channel type is an E-4 type channel transitioning towards a G4-type channel, however there are significant portions of each channel (approximately one third to one half) that are over widened and could be classified as an F4 type channel. F4 type channels display high width- to-depth ratios (greater than 12) and are entrenched. F4 type channels typically loose their capacity to transport sediment loads because shear stress drops dramatically. This condition is apparent in numerous sections of the Northern UT and Southern UT where the channel has over widened due to cattle access or because the landowner has dug out the channel for watering purposes. These areas are where the channel has begun to aggrade because the channel's shear stress is not high enough to transport the contributing sediment load. 3.2 Discharge: The Northern and Southern UTs have a bankfull discharge of 100 cubic feet per second (cfs) and 22 cfs, respectively. a KO & ASSOCIATES, P. C. g Consullin~,~ Engincu•s Project ID No. 060684901 UT to Bear Leek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN ' 3.3 Channel Morpholo~y: Channel cross-sections were measured on the existing streams. The Morphological Stream Characteristics table (Appendix D) includes a summary of dimension, profile, and pattern data for the stream. i 3.4 Channel Stability Assessment: A visual assessment accompanied by a morphological assessment using data collected during a Rosgen Level II survey was used to deterrnine channel stability. These data, which can be found in Appendix D (Morphological Stream Characteristics), Appendix C (Existing Conditions Site Photographs), and Appendix F (Restoration Site NCDWQ Stream Classification Forms), confirmed the channel attributes do not fall within acceptable ranges for a stable channel as evidenced by: 1) mass wasting of channel banks; 2) incision of the bankfull elevation below the rooting depth of existing vegetation on the channel banks; 3) undermining of existing trees along the channel bank; 4) over widening of the channels in select spaces by the landowner to provide watering holes for cattle; 5) sections of braided and over ' widened channel in both the Northern and Southern UTs where cattle have eroded channel banks and side slopes; and 6) a lack of riparian vegetation on many sections of banks. Data collected during field surveys of the Northern UT indicate that: 1) approximately 80% of the channel length displays signs of instability; 2) the Bank Erosion Hazard Index (BEHI) of 39 is considered High; 3) the bedform is comprised of sand and gravel; 4) the channel profile 30% riffles with 70% pools; 5) a Band Height Ratio (BHR) of 1.35; 6) approximately 80% of the channel contains a baseflow depth that is below the rooting depth of vegetation along the banks. Data collected during field surveys of the Southern UT indicate that: 1) approximately 90% of the channel length displays signs of instability; 2) the BEHI of 48 is considered Very High; 3) the bedform is comprised of sand and ' gravel; 4) the channel profile 40% riffles with 60% pools; 5) a Band Height Ratio (BHR) of 1.39; 6) approximately 90% of the channel contains a baseflow depth that is below the rooting depth of vegetation along the banks. ' An existing conditions entrainment analysis was completed for the Northern and Southern UTs (Section 6.2 and Appendix H). The analysis confirms that the existing slope and dimension for both channels provides an overabundance of shear stress during bankfull flows. Evidence of an overabundance of shear stress can be seen in eroding meander bends, and the fact that both channels have ' incised into the landscape and down cut to bedrock. The landowner has not placed a fence around either the Northern or Southern UT. As a result cattle grazing in the adjacent pastures are accessing both channels as a a KO & ASSOCIATES, P. C. 9 Consubin~,~ En~,~inurs Project ID No. 0606x4901 U"h to Bear Creek Streatu Restoration Pruj~ct. Chatham County, North Carolina RES"I'ORATION PLAN watering and cooling source. Massive amounts of algal blooms were noted during all site inspections. The algal blooms are likely a direct result of nutrient loading from cattle defecating directly into the stream channels. Primary vegetation along the Northern UT is Chinese privet (Ligustru~n sinense). This invasive species should be eradicated and controlled. If this species is removed from the Project, it would enhance the ability of native flora to populate the site however, it would cause significant physical disturbance to the soils on the channel banks and floodplain. So, although the existing privet is not a physical hindrance to channel stability, it likely would become a hindrance following its eradication because of soil disturbance. 3.5 Bankfull Verification: Bankfull indicators were identified along the Northern and Southern UTs during field inspections. Existing conditions surveys were conducted which included surveying representative riffle cross-sections, representative hydraulic (Bankfull) slope, and determining an existing Manning's n coefficient for the surveyed reaches. The surveyed data and calculated Manning's n were correlated with identified Bankfull indicators to estimate Bankfull cross-sectional area and velocity, and consequently Bankfull discharge. The estimated Bankfull cross-sectional area and discharge were compared with a calculated Bankfull cross-sectional area and discharge using the Bankfull Hydraulic Geometry Relationships for North Carolina Streams (Harman, W. H. et al., 1999) (Piedmont regional curve). Data obtained from on-site falls within a level of confidence of the data obtained from the Piedmont regional curve. 3.6 Vegetation: Two plant communities are currently present within the Project limits: 1) pasture and 2) disturbed riparian fringe. Pasture land contains fields that are grazed by livestock and/or used for hay production. The fields are vegetated by a mixture of cultivated grasses, as well as clover (Trifolium sp.), buttercup (Ranunculus sp.), poison ivy (Toxicodendron radicans), jewelweed (Impatiens capensis), and nightshade (Solanum sp.). The disturbed riparian fringe is characterized by a thin, disturbed strip of vegetation located adjacent to existing Project streams. The canopy layer consists of sweetgum (Liquidambar styraciflua), tulip poplar (Liriodendron tulipifera), hackberry (Celtis laevigata), shagbark hickory (Carya ovata), slippery elm (Ulmus rubs), mockernut hickory (Carya tomentosa/alba), box elder (Ater negundo), willow oak (Quercus phellos), white ash (Fraxinus americana), black walnut (Juglans nigra), southern red oak (Quercus falcata), loblolly pine (Pinus taeda), and sycamore (Platanus occidentalis). The subcanopy consists of ironwood (Carpinus caroliniana), winged elm (Ulmus alata), deciduous holly (Ilex decidua), flowering dogwood (Corms Florida), and eastern red cedar a KO & ASSOCIATES, P. G 10 Consul~in~~ En~,~ineers Project ID No. 0606K49U1 UT to Bear Creek Stream Restoration Project, ('hatham County, North Carolina RESTORATION PLAN (Juniperus virgrniana). The understory consists of species listed above, as well as pokeweed (Phytolacca americana), red bud (Cercis canadensis), greenbrier (Smilax rot~ndifolia), greenbrier (Smilax bona-nox), jewelweed, blackberry (Rubus argatus), and poison ivy. In addition, several invasive species are present within the disturbed buffer including tree-of-heaven (Ailanthus altissima), Chinese privet (Ligustrum sinense), Japanese honeysuckle (Lonicera japonica), and China-berry (Melia azedarach). ' a KO & ASSOCIATES, P. C. 11 Cunsrd~in~,~ En,~~nrecrs 1 ['roiect 1[J Nu. 060(,x4901 UT to t3ear Crick Stream 1Zcstoration Projrct, Chatham County, North Carolina RE,S~TORA~CION ('LAN 4.0 REFERENCE STREAMS: One stream, Landrum Creek, was surveyed and used as a reference reach for the design of the Northern and Southern UTs. Distinct bankfull variables were identifiable in Landnim Creek and pattern/profile characteristics appear to have not been degraded, allowing for assistance with proposed design characteristics. The Landrum Creek reference site vicinity, watershed, and soils are depicted in Figures 5 through 7. Photographs for the reference reach can be found in Appendix I. Landrum Creek was specifically used as a reference stream because it is a stable stream that depicts a similar valley type and substrate as streams on-site. 4.1 Watershed Characterization: Land use within Landrum Creek's watershed can be characterized as rural in nature with the majority of lands historically being mature forest and utilized for agriculture. Many areas of mature forests have recently been clear cut and can now be classified as early succesional communities. The watershed is approximately 60 percent wooded, 35 percent agriculture, and five percent residential. 4.2 Channel Classification: Landrum Creek is characterized as a C4-type stream, with a moderate sinuosity (1.12), gravel-dominated substrate (Appendix D), and a bank height ratio of 1.02. C-type streams are characterized as slightly entrenched (entrenchment ratios higher than 2.2) streams with high width-to-depth ratios (typically 12 (+/- 2) and higher) that display riffle-pool complexes. 4.3 Discharge: The UT to Ledge Creek reference reach has a drainage area of 2.53 square miles and a bankfull discharge of 173.7 cfs. ' 4.4 Channel Morphology: Channel cross-sections (dimension), channel profiles, and plan form variables were measured along Landrum Creek to obtain ' morphological data. Additionally, bed material was evaluated, and a vegetation assessment in the buffer was completed. The reaches are transporting their sediment supply while maintaining dimension, pattern, and profile. The table of Morphological Stream Characteristics (Appendix D) includes a summary of dimension, profile, and plan form data of Landrum Creek. 4.5 Channel Stability Assessment: Major components for stability include determining if the channel is conveying its discharge and sediment load without aggrading or degrading. Evidence that a channel does not fit these criteria , includes: bank degradation, channel incision, channel widening, channel aggradation, massive amounts of sediment loading within and/or outside of the channel banks, channel armoring, and no sparse vegetation on the channel's ' banks. a KO ~ ASSOCIATES, P.C. 12 , COl1S71~1lq~ ~;ll~lllGCl:Y Project ID No. 060684901 UT to Scar Creek Stream Restoration Project, Chatham County, North Carolina R1:S'TORA"LION PLAN A visual assessment accompanied by a morphological assessment using data collected during a Rosgen Level II survey was used to determine channel stability. These data, which can be found m Appendix D (Morphological Stream Characteristics), Appendix I (Reference Site Photographs), and J (Reference Site NCDWQ Stream Classification Form), confirmed the channels fell within acceptable ranges for a stable reference channel. Landrum Creek was determined ' to be a stable channel suitable as a reference reach. 4.6 Bankfull Verification: Bankfull indicators were identified along Landrum Creek ' during field inspections. Surveys were conducted which included surveying representative riffle cross-sections, representative hydraulic (bankfull) slope, and determining an existing Manning's n coefficient for the surveyed reach. The surveyed data and calculated Manning's n were correlated with identified bankfull indicators to estimate bankfull cross-sectional area and velocity, and consequently bankfull discharge. The estimated on-site bankfull cross-sectional area (28.2 square feet) and discharge (173.7 cfs) were compared with a calculated bankfull cross-sectional area and discharge using the Bankfull Hydraulic Geometry Relationships for North Carolina Streams (Harman, W. H. et al., 1999) (Piedmont regional curve). Data obtained from on-site falls within a level of confidence of the data obtained from the Piedmont regional curve. 4.7 Reference Forest Ecosystem: According to Mitigation Site Classification (MIST) guidelines (USEPA 1990), a Reference Forest Ecosystem (RFE) must be established for restoration sites. RFEs are forested areas on which to model restoration efforts of the restoration site in relation to soils and vegetation. RFEs should be ecologically stable climax communities and should represent believed historical (predisturbance) conditions of the restoration site. Data describing plant ' community composition and structure are collected at the RFEs and subsequently applied as reference data for design of the restoration Project planting scheme. The RFE is located immediately upstream of the Project within a small area (approximately 2 acres) of mature Piedmont Alluvial Forest. Tree and shrub species identified within the reference forest are identified in Table 6 and Figure 8 and will be used, in addition to other relevant species within the Project and Schafale and Weakley (1990) to supplement community descriptions. a KO & ASSOCIATES, P. C. 13 Consullin~,~ En~~nmers 1 Project I D No. O60(~K49U 1 UT to Bear Crcek Sh~cam Eestoration Project. ('hatham County, North ('arolina RESTORA"LION PLAN Table 6. Reference Forest Ecosystem Proiect ID No. 060684901 (UT to Bear Creek Restoration Proiectl Piedmont Alluvial Forest Cano S ecies Understor S ecies Car ~a tomentosa/alba Acer fre zmdo Caf• a ovata Acer rcrbrum Li uidambar st ~f•aci zra Car inars caroliniana Liriodendron tali ifera Cercis cai~adensis uercus alba Cor•nus florida uercus hellos Ulmzrs rubs Pinus taeda a KO ~ ASSOCIATES, P. C. 14 , Cuusul~in~,~ En~~ineers Project lD No. 06064901 U"1' to Bear Crcek Strea-n Restoration Project, Chatham County, North Carolina RESTORATION PLAN ' S.0 PROJECT SITE WETLANDS (EXISTING CONDITIONS): 5.1 Jurisdictional Wetlands: A jurisdictional wetland delineation occurred within the Project limits in May 2007. The Project was evaluated using the three- parameter approach (hydric soils, hydrophytic vegetation, and hydrology) as outlined m the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory 1987). Four jurisdictional wetlands were delineated within the boundaries of the Project (Sheets 1 through 1 A, and 2 through 2C), totaling 0.49 acres. The delineation has yet to be verified by the United States Army Corps of Engineers. Routine Wetland Determination Data Forms can be found in Appendix E. 5.2 Hydrological Characteristics: All four (4) jurisdictional Project wetlands are riparian wetlands. Riparian wetlands within the Project receive hydrological ' inputs from periodic overbank flooding of the Northern UT, groundwater migration into the Project, upland/stormwater runoff, and direct precipitation. Three of the four wetlands are located in abandoned sections of the Northern UT (meander scrolls) that receive and retain floodwater flows from the Northern UT. One wetland's hydrology is fed primarily by overland flow from the Northern UT ' and from groundwater seeps from an adjacent hill slope. 5.3 Soil Characteristics: Soils within the Project consist primarily of the Chewacla and Wehadkee mapping units (Figure 3). Chewacla soils are classified as fine- loamy, mixed, thermic Fluvaquentic Dystrochrepts. Atypical soil profile obtained on-site from a wetland is as follows. 0 -5" 10 YR 4/2 silt loam Mottles 10 YR 4/4 few/faint 5 - 10" 2.5 Y 5/3 Silty clay loam Mottles 10 YR 3/6 common/distinct ' 10 -16" 2.5 Y 5/2 Silty clay loam Mottles 10 YR 3/6 common/distinct ' a KO & ASSOCIATES, P. C. 15 Consullin~~ En~,~ineers Project ID No. 06O6K4901 LJT to E3car C'rcck Strcam Rc~toration Projeri. Chatham County, North Carolina RESTORATION PLAN 5.4 Plant Community Characterization: Project wetlands can be classified as disturbed pasture wetlands dominated by Joncus effuses and Carex spp. The wetlands are located within pash-re lands, which are used for cattle grazing. The following primary vegetated species were identified within the Project wetlands: • Common rush (Juncos effuses) • Sedge (Carex spp.) • Black willow (Salix nigra) • Sweetgum • Smartweed (Polygonaim sp.) • Green ash (Fraxinus ~ennsylvanica) • Lizard's tail (Saururos cernuos) a KO & ASSOCIATES, P.C. 16 Conrrdlin~; En},~ineers Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 6.0 PROJECT SITE RESTORATION PLAN 6.1 Restoration Project Goals and Objectives: The primary goals of this Project focus on improving water quality by reducing nutrient loading from the on-site cattle operation, reducing excess sedimentation input from channel banks, increasing the attenuation of floodwater flows, and restoring and enhancing aquatic and riparian habitat. These goals will be accomplished through the following objectives: ' • Reduce point and non-point source pollution associated with an on-site cattle operation by fencing out cattle from the stream and riparian buffer, and by providing a vegetative buffer adjacent to streams to treat surface runoff. • Stabilize on-site streams by restoring a stable dimension, pattern, and profile so they will transport watershed flows and sediment loads without aggrading or degrading. ' • Improve aquatic habitat by enhancing stream bed variability, providing shading/cover areas within the stream channel, and introducing woody debris in the form of rootwads, log vanes, and log sills. • Enhance wildlife habitat by vegetating the existing fescue dominated riparian buffers with native trees, shrubs, herbs and grasses. • Create wildlife corridors through agricultural lands which have significantly dissected the landscape. The corridors will provide connectivity to a diversity of habitats including mature forest, early successional forest, stream-side forest, riparian wetlands, and uplands. ' The proposed restoration plan, depicted on Sheets 2 through 2C, is expected to produce a restored length of 3,132 linear feet of the Northern UT and 1,745 linear feet of the Southern UT. Additionally, 0.39 acres of riparian wetlands will be enhanced by supplemental vegetation plantings, 15 acres of buffers along the Northern and Southern UTs will be planted with native species, 3.2 acres of buffers along Bear Creek will be planted with native species, and 12.15 acres of buffers along Bear Creek will be preserved. All activities within the Project limits will be protected in perpetuity by a 32 acre permanent conservation easement. 6.1.1 Desi ned Channel Classification ' Both streams on-site were designed using Natural Channel Design principals. Appendix D (Morphological Stream Characteristics) details channel classification and variables used to classify the design channels. Both the Northern and ' Southern UTs are designed as C4 type stream channels with moderately low width-to-depth ratios (12). The Northern UT will be constructed as a Priority I and Priority II restoration (Sheets 3 through 3A). Priority I restorations reconnect ' the bankfull discharge to the historic floodplain (existing ground). A floodplain ' a KO cYc ASSOCIATES, P. C. 17 Consrdlinst En.~~ineers Project I U No. OfiO(,K49O1 U~1• to Scar Crock ~hl'aRl Restoration Project, ('Latham County, North Carolina RESTORATION PLAN bench is cut at the baukfiill elevation for a Priority II restoration. The Northern UT will begin as a Priority II restoration at the beginning of the Project. The channel invert will be raised as the channel falls through the valley so that the bankfull elevation eventually mirrors existing ground. The Southern UT will be constructed as a Priority I and Priority II restoration (Sheets 3 through 3A). Like the Northern UT, the Southern UT will begin as a Priority II restoration and eventually become a Priority I restoration as the channel falls through the valley. 6.1.2 Stream Restoration Activities The stream will be constructed partially on new location and partially in place. The existing channel will be abandoned and filled. Primary activities that will take place during channel restoration include: 1) the placement of permanent fencing around all restored, enhanced, and preserved areas within the Project limits; 2) channel and floodplain bench excavation; 3) installation of channel plugs; 4) backfilling of the abandoned channel; and 5) installation of in-stream structures. An erosion control plan and construction/transportation plan are expected to be developed during the next phase of this Project. Erosion control will be performed locally throughout the Project and incorporated into construction sequencing. Exposed surficial soils at the Project are unconsolidated, alluvial sediments, which do not revegetate rapidly after disturbance. Therefore, seeding with appropriate grasses and immediate planting with disturbance-adapted shrubs will be employed following the earth-moving process. A transportation plan, including the location of access routes and staging areas will be designed to minimize Project disturbance to the maximum extent feasible. The number of transportation access points into the floodplain will be maximized to avoid traversing long distances through the Project interior. a KO c4c ASSOCIATES, P. C. 18 Carstrllin~; En~;incu•s Project ID No. U60(,~4901 U"l~ to Bear Creek Stream Restoration Project, Chatham C ounty, North Carolina RESTORATION PLAN ' Fencing and Ford Crossings A permanent fence will be placed along the entire easement boundary that the EEP is acquiring. The fence will protect the easement from cattle accessing the streams or vegetation within the easement. Three ford crossings are proposed for the Project. Two crossings are proposed for ' the Northern UT and one crossing is proposed for the Southern UT. A permanent fence will be placed along the fords to block cattle from accessing the up and down stream portions of the Project. Additionally, a gate will be placed at both ends of the crossings to restrict cattle from accessing the streams during normal grazing times. ' Design Channel Location The objective to placing the channel in a new location was threefold. First, the design channel was required to stay within the proposed easement boundary that ' the EEP and landowner have agreed upon. Second, the design channel was placed back into the low point of its respective valley. One-foot topographical data and data obtained from a site survey of existing meander scrolls (using a sub foot accurate GPS) were used to determine where the low points of the valley are. Where possible the design channel was placed into meander scrolls that have not completely filled in. Third, the design channel was strategically placed near existing trees. A survey of existing trees eight inches or greater (diameter at breast height) was conducted prior to design. All of these trees were taken into consideration during the design process. The existing trees will provide root stabilization to the disturbed soils in ' the floodplain and on channel banks. Shading from the trees will help regulate water temperatures, and woody materials such as leaves and branches will provide biomass to the stream for foraging and cover. ' Channel and Fooodplain Bench Grading The channel and corresponding floodplain will be excavated along the alignment as shown in Sheets 2 through 2C. Material excavated during grading of the channel and floodplain will be stockpiled immediately adjacent to channel segments to be abandoned and backfilled. These segments will be backfilled after ' the design channel has been constructed. Preliminary earthwork estimates indicate the Project will excavate approximately 7,800 cubic yards and fill approximately 7,362 cubic yards of soil. Soil material ma be laced to stabilize tem ora access roads and to minimize P Y p p rY compaction of the underlying floodplain. However, all spoil will be removed from floodplain surfaces upon completion of construction activities. ' a KO cPc ASSOCIATES, P. C. 19 Consulting En~~ineers Project ID No. 060f~K4901 UT to E3ear C'rcck Stream Kestoration Project. ('hatham Co~mty, North (`arolina RES'[~ORA~I~ION PLAN Channel Plugs Impermeable plugs will be installed along abandoned channel segments. Due to landowner constraints, the conservation easement is rather confined, which dictated the need to meander the proposed alignment back and forth across the existing channel. Impermeable plugs are installed along the downstream side of the proposed channel banks where the proposed channel crosses the existing channel. The will prevent the channel flow from accessing the abandoned channel segment. The plugs will consist of low-permeability materials designed to be of sufficient strength to withstand the erosive energy of surface flow events across the Project. Dense clays may be imported from off-site or existing material, compacted within the channel, may be suitable for plug construction. The plug will be of sufficient width and depth to form an imbedded overlap in the existing banks and channel bed. Channel Backfilling After impermeable plugs are installed, the abandoned channel will be backfilled. Backfilling will be performed primarily by pushing stockpiled materials into the channel. The channel will be filled to the extent that onsite material is available and compacted to maximize microtopographic variability, including ruts, ephemeral pools, and hummocks in the vicinity of the backfilled channel. Wetland Impacts The proposed alignment of the Northern UT is expected to impact 0.10 acres of existing riparian wetlands onsite. It is expected that enhancing 0.39 acres of riparian wetlands will make up for the 0.1 acres of wetland impact. Justification for Wetland Impacts Project restoration activities will provide a functional uplift from existing conditions. Current conditions have resulted in degraded water quality, a loss of aquatic habitat, reduced nutrient and sediment retention, and unstable channel characteristics (mass wasting of channel banks, channel incision and aggradation, sediment loading, and the loss of bed form diversity) at the Project. Restoration of the channel will restore stable riffle-pool morphology, aid in energy dissipation, and increase aquatic habitat. Wetlands occurring within the project limits are considered low quality wetlands. The wetlands are located in and around areas where abandoned channel scrolls and meanders were observed. The proposed channel alignment took into account the constrained easement, existing low quality wetlands, and the existing mature trees. Minimizing impact to the wetlands and the loss of existing mature trees played an important role in determining the location of the proposed alignment a KO & ASSOCIATES, P.C. 20 Consrrllirr~ ~)r~incu~s Project 1D No. 060684901 L1T to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 6.1.3 In-stream Structures Stream restoration using Natural Channel Design techniques, typically involves the use of in-stream structures for bank stabilization, grade control, and habitat improvement. Primary structures used to achieve these objectives may include the installation of log and rock vanes, log sills, log and rock cross-vanes, root wads, and other log type structures. ' 6.1.4 Target Buffer Communities Restoration of floodplain forest and stream-side habitat allows for development ' and expansion of characteristic species across the landscape. Community associations that will be utilized to develop primary plant community associations include: 1) Piedmont Alluvial Forest, 2) stream-side assemblage, and 3) riparian wetland. This is discussed in more detail in Section 6.5 (Natural Plant Community Restoration). 6.2 Sediment Transport Analysis: One of the primary goals of this Project is to construct a stable channel that will transport its sediment and flow such that, over time, the stream system neither aggrades nor degrades. This stability is achieved when the sediment input to the design reach equals the sediment output. It is common practice in gravel bed streams to study the competency of the stream's ability to entrain the largest sized particle during bankfull flows for stability analysis. The primary factor studied is shear stress of the bankfull channel. The bankfull mean depth and slope are the two primary variables used to determine if the channel has the competency to entrain its largest particle size under bankfull flows. Entrainment calculations for both existing and proposed conditions on the Northern and Southern UTs are included as Appendix H. ' 2 ) as In summary, the Northern UT has an excess amount of shear stress (0.53 lb/ft evidenced by an average slope that is too steep (0.62 percent) and mean depth that ' is too dee~ (1.37 ft). The proposed design substantially lowers the shear stress to 0.22 lb/ft , by lowering the bankfull slope to 0.31 percent, and slightly lowering the mean depth to 1.33 ft. 2 ) as evidenced The Southern UT has an excess amount of shear stress (0.76 lb/ft by an average slope that is too steep (1.5 percent) and mean depth that is too dee~ (1.05 ft). The proposed design substantially lowers the shear stress to 0.16 lb/ft , by lowering the bankfull slope to 0.41 percent, and lowering the mean depth to ' 0.71 ft. The designed channel slopes and dimensions for the Northern and Southern UTs will produce a stable channel which will transport its sediment load without aggrading or degrading. ' a KO & ASSOCIATES, P. G 21 Cunsrrl~irrg Engineers Project ID No. 060(i~i~9t11 UT to Bear C'reck Stream Restoration Pr~~ject, Chatham County, North Carolina RES"CORATION PLAN 6.3 HEC-RAS Analysis: Given that the Project involves modifications to a stream channel, it is important to analyze the effect of these changes on flood elevations. Floodwater elevations were analyzed using HEC-RAS. HEC-RAS is a software package designed to perform one-dimensional, steady flow, analysis of water surface profiles for a network of natural and constructed channels. HEC-RAS uses two equations, energy and/or momentum, depending upon the water surface profile. The model is based on the energy equation. The energy losses are evaluated by friction (Manning's equation) and contraction/expansion (coefficient multiplied by the change in velocity head). The momentum equation is used in situations where the water surface profile rapidly varies, such as hydraulic jumps and stream junctions. Backwater analysis was performed for the existing and proposed conditions for both bankfull and 100-year discharges. In addition to steady flow data, geometric data is also required to run HEC-RAS. Geometric data consists of establishing the connectivity of the river system, which includes cross-section data, reach lengths, energy loss coefficients (friction losses, contraction, and expansion losses), and stream junction information. 6.3.1 Bankfull Discharge Analysis Bankfull indicators were identified along both the Northern and Southern UTs during field inspections. Existing conditions surveys were conducted which included surveying representative riffle cross-sections, representative hydraulic (bankfull) slope, and determining an existing Manning's n coefficient for the surveyed reaches. The surveyed data and calculated Manning's n were correlated with identified bankfull indicators to estimate bankfull cross-sectional area and velocity, and consequently bankfull discharge. The estimated on-site bankfull cross-sectional area and discharge were compared with a calculated bankfull cross-sectional area and discharge using the Bankfull Hydraulic Geometry Relationships for North Carolina Streams (Harman, W. H. et al., 1999) (Piedmont regional curve). Data obtained from on-site falls within a level of confidence of the data obtained from the Piedmont regional curve. The Northern and Southern UTs have a bankfull discharge of 100 cfs and 22 cfs, respectively. Hydrologic Engineering Center's River Analysis System (HEC- RAS Version 3.0.1, see Section 6.3.2 [No-Rise]) was used to evaluate how the discharge flows within the proposed channel geometry. This evaluation verifies that the proposed plan, dimension, and profile would adequately convey the discharge at the bankfull stage; the point where water begins to overflow onto the floodplain. a KO ~ ASSOCIATES, P. C. 22 Consulliit~,~ En~;ineci•s Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RES"TORATION PLAN ' 6.3.2 No-Rise A HEC-RAS analysis has been prepared and completed on existing and proposed conditions of the Project channel(s). The resulting data output has been analyzed to determine if the design channel is adequately conveying its bankfull discharge, and to determine if a rise, fall, or no-rise in water surface elevations during the 100-year flood event has occurred. The analysis indicates the proposed channel geometry will not increase the 100- year flood elevations within or upstream of the Project area. Results are located within the HEC-RAS Summary Table in Appendix K. 6.3.3 Hydrologic Trespass ' Hydrologic trespass includes any issue which may affect hydrology outside of the property boundaries on which the project is located. These issues were reviewed for this Project. All onsite modifications will not affect offsite hydrology. ' 6.4 Soil Restoration Soil grading will occur during Project stream restoration activities. Topsoils will be stockpiled during construction activities and spread on the soil surface once grading activities have been completed. The replaced topsoil will serve as a viable growing medium for community restoration to provide nutrients and aid in the survival of planted species. 6.4.1 Floodblain Soil Scarification Microtopography and differential drainage rates within localized floodplain areas represent important components of floodplain functions. Reference forests in the region exhibit complex surface microtopography. Efforts to advance the t development of characteristic surface microtopography will be implemented. In areas where soil surfaces have been compacted, ripping or scarification will be ' performed. After construction, the soil surface is expected to exhibit complex microtopography ranging to 1 foot in vertical asymmetry. Subsequently, plant community restoration will be initiated. 6.5 Natural Plant Community Restoration: Restoration of floodplain forest and stream-side habitat allows for development and expansion of characteristic species across the landscape. Ecotonal changes between community types contribute to diversity and provide secondary benefits, such as enhanced feeding and nesting opportunities for mammals, birds, amphibians, and other wildlife. t Reference Forest Ecosystem (RFE) data, onsite observations, and community descriptions from Classification of the Natural Communities of North Carolina (Schafale and Weakley 1990) were used to develop the primary plant community ' a KO & ASSOCIATES, P. C. 23 Corisultii~~,~ Engincus Project [[) No. 060(~~;~901 U~h to Bear ('rock Strum (Ze;toration Project, Chatham County, North Carolina RES"TY)RA'T10N PLAN associations that will be promoted daring community restoration activities. Community associations that will be utilized to develop primary plant community associations include: 1) Piedmont Alluvial Forest, 2) stream-side assemblage, and 3) riparian wetland (Sheet 4). Planting elements are listed below. Piedmont Alluvial Forest 1. River birch (Betula nigra) 2. Slippery elm (Ulmus ruhra) 3. Winged elm (Ulmus alata) 4. Bitternut hickory (Carya cordiformis) 5. Shagbark hickory (Carya ovata) 6. Black walnut (Juglans nigra) 7. Willow oak (Quercus phellos) 8. Green ash (Fr°axinus pennsylvanica) 9. Ironwood (Carpinus caroliniana) 10. Box elder (Ater negundo) l 1. Painted buckeye (Aescult~s sylvatica) Stream-Side Assemblage 1. Black willow (Salix nigra) 2. Silky dogwood (Cornt~s amomum) 3. Buttonbush (Cephalanthns occidentalis) 4. Elderberry (Sambucus canadensis) 5. Tag alder (Alms serrulata) 6. Painted buckeye (Aesculus sylvatica) 7. Spicebush (Lindera benzoin) Riparian Wetland 1. Green Ash 2. Slippery elm 3. Swamp Chestnut Oak (Quercus michauxii) 4. Black willow 5. Silky dogwood 6. Buttonbush 7. Elderberry Stream-side trees and shrubs include species with high value for sediment stabilization, rapid growth rate, and the ability to withstand hydraulic forces associated with bankfull flow and overbank flood events. Stream-side trees and shrubs will be planted on all channel side slopes, concentrated along outer bends. Piedmont Alluvial Forest is targeted for the remainder of the riparian buffer, with the exception of existing riparian wetlands. Riparian wetland plantings include a KO cfc ASSOCIATES, P. C. 24 Co,rrulri,r~; En~~inrci~ Project ID No. 060684901 IJT to Bear Creek Stream Restoration Project, Chatham County, North Carolina KESTORAT'ION PLAN tree and shrub species that are adapted for wetter conditions. The following planting plan is the blueprint for community restoration. ' 6.5.1 Planting Plan Species selected for planting will be dependent upon availability of local seedling sources. Bare-root seedlings of tree species will be planted within specified areas at a density of approximately 680 stems per acre on 8-foot centers. Shrub species in the stream-side assemblage will be planted at a density of 2720 stems per acre on 4-foot centers. Table 7 depicts the total number of stems and species distribution within each vegetation association. Planting will be performed between December 1 and March 15 to allow plants to stabilize during the dormant period and set root during the spring season. Table 7. Planting Plan Project ID No. 060684901 (UT to Bear Creek Restoration Pro'ect) ii u n egetation Association Piedmont Alluvial Forest Stream-side Assemblage Riparian Wetland Piedmont Alluvial Forest (Bear Creek Buffer Planting) OTAL Area (acres) 14.62 Acres 1.03 Acres 0.39 Acres 3.23 Acres 19.3 Acres Number planted* Number planted** Number planted* Number planted* Number Species (% of total) (% of total) (% of total) (% of total) planted Bercrla nigra 994 (l0) 220 (10) 1,214 Ulmas rtebra 497 (5) 113 (5) 610 Ulmus alara 495 (5) 110 (5) 605 Carya cordiformis 994 (10) 220 (l0) 1,214 Carya ovata 994 (l0) 220 (10) 1,214 Juglans nigra 994 (10) 220 (10) 1,214 Quercus phellos 994 (10) 220 (l0) 1,214 Fraxinus pennsylvanica 994 (10) 40 (1 S) 220 (] 0) 1,254 Carprnus carolininna 994 (10) 220 (10) 1,214 Acer negundo 994 (10) 220 (10) 1,214 Aesczrhrs sylvatica 994 (10) 280 (10) 220 (] 0) 1,494 Salix nigra 420 (15) 27 (10) 447 Corpus amomnm 420 (15) 40 (IS) 460 Cephalanthus occidenralis 420 (15) 40 (IS) 460 Sambucus canadensis 420 (15) 40 (IS) 460 Alnus serrulata 420 (15) 420 Lindera benzoin 420 (I S) 420 Ulmus americana 40 (15) 40 Quercus michauxii 40 (15) 40 0 TOTAL 9,940 (100) 2,802 (100) 265 (100) 2,200 (100) 15,206 ' * Planted at a density of 680 stems/acre. **Planted at a density of 2720 stems/acres ' a KO & ASSOCIATES, P. C. 25 Consul-ing En~~ineers Project ID No. OhO68~901 UT to Bear Creek Stream Restoration Pr~~ject, Chatham County, North Carolina RESTORATION PLAN 6.5.2 Invasive Species Management Several invasive species were observed at the Project within the existing disturbed riparian fringe including tree-of-heaven, Chinese privet, Japanese honeysuckle, and China-berry. These species will be controlled so none become dominant or alter the desired community structure of the Project. It is likely that manual removal (by cutting and grubbing); in addition to chemical herbicide treatments may be required. During the eve-year monitoring period, where necessary, undesirable plant or animal species will be removed, treated, or otherwise managed by means of physical removal, use of herbicides, live trapping, confining wires, or nets. All vegetation removal from the Project shall be done by mechanical means only unless EEP has first authorized the use of herbicides or algaecides for the control of plants in or immediately adjacent to the Project. a KO & ASSOCIATES, P. G 26 Consu!lin~,> Enl,>ineers Project ID No. 060684901 U"I' to E3ear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 7.0 PERFORMANCE CRITERIA: Monitoring of Project restoration efforts will be performed until success criteria are fulfilled. Monitoring is proposed for the stream channel, stormwater management devices, wetlands, and vegetation. In general, the restoration success criteria, and required remediation actions, are based on Appendix II of the Stream 1l~Iitigatiort Guidelines (USAGE et al. 2003). 7.1 Streams: The restored stream reaches are proposed to be monitored for geometric activity. Annual fall monitoring will include development of channel cross-sections on riffles and pools and a water surface profile of the channel. The data will be presented in graphic and tabular format. Data to be presented will include: 1) cross-sectional area; 2) bankfull width; 3) average depth; 4) maximum depth; 5) width-to-depth ratio; 6) meander wavelength; 7) belt-width; 8) water I surface slope; and 9) sinuosity. The stream will subsequently be classified according to stream geometry and substrate (Rosgen 1996). Significant changes in channel morphology will be tracked and reported by comparing data in each ' successive monitoring year. A photographic record that will include preconstruction and post construction pictures has been initiated (Appendix C). ' 7.1.1 Stream Success Criteria Success criteria for stream restoration will include: 1) successful classification of the reach as a functioning stream system (Rosgen 1996), and 2) channel variables 1 indicative of a stable stream system. The channel configuration will be measured on an annual basis in order to track changes in channel geometry, profile, or substrate. These data will be utilized to determine the success in restoring stream channel stability. Specifically, the width-to-depth ratio should characterize an C-type or borderline E-/C-type channel, bank-height ratios indicative of a stable or moderately unstable channel, and minimal changes in cross-sectional area, channel width, and/or bank erosion along the monitoring reach. In addition, channel abandonment and/or shoot ' cutoffs must not occur and sinuosity values must remain at approximately the same design sinuosity (thalweg distance/straight-line distance). The field indicator of bankfull will be described in each monitoring year and indicated on a ' representative channel cross-section figure. If the stream channel is down-cutting or the channel width is enlarging due to bank erosion, additional bank or slope stabilization methods will be employed. ' Visual assessment of in-stream structures will be conducted to determine if failure has occurred. Failure of a structure may be indicated by collapse of the structure, ' undermining of the structure, abandonment of the channel around the structure, and/or stream flow beneath the structure. a KO & ASSOCIATES, P.C. 27 Co~uullin~~ En~,~ineers Project ID Nu. 060hh4901 U1' to Bear C'reck Strewn Restoration Project. ('Latham County, North Carolina RES~IY)RATI(~N PLAN 7.1.2 Stream Contingency In the event that stream success criteria are not fulfilled, a mechanism for contingency will be implemented. Stream contingency may include, but may not be limited to: 1) structure repair and/or installation, 2) repair of dimension, pattern, and/or profile variables, and 3) bank stabilization. The method of contingency is expected to be dependent upon stream variables that are not in compliance with success criteria. 7.2 Vegetation: Restoration monitoring procedures for vegetation will monitor plant survival and species diversity. After planting has been completed in winter or early spring, an initial evaluation will be performed to verify planting methods and to determine initial species composition and density. Supplemental planting and additional modifications will be implemented, if necessary. A photographic record of plant growth will be included in each annual monitoring report. During the first year, vegetation will receive a cursory, visual evaluation on a periodic basis to ascertain the degree of overtopping of planted elements by nuisance species. Subsequently, quantitative sampling of vegetation will be performed between June 1 and September 30, after each growing season, until the vegetation success criteria are achieved. During quantitative vegetation sampling in early fall of the first year, up to 17 sample plots (10 meters by 10 meters) will be randomly placed within the Project however, best professional judgment may be necessary to establish vegetative monitoring plots upon completion of construction activities. In each sample plot, vegetation parameters to be monitored include species composition and density. 7.2.1 Vegetation Success Criteria Success criteria have been established to verify that the vegetation component supports community elements necessary for forest development. Success criteria are dependent upon the density and growth of characteristic forest species. Additional success criteria are dependent upon density and growth of "Character Tree Species." Character Tree Species include planted species along with species identified through visual inventory of an approved reference (relatively undisturbed) forest community used to orient the Project design. All canopy tree species planted and identified in the reference forest will be utilized to define "Character Tree Species" as termed in the success criteria. An average density of 320 stems per acre of Character Tree Species must be surviving in the first three monitoring years. Subsequently, 290 Character Tree Species per acre must be surviving in year four (4) and 260 Character Tree Species per acre in year five (5). a KO dt ASSOC/AYES, P. C. 28 CorrsrrM(n~; Gn~;irrcu•s Project ID No. (160684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN 7.2.2 Vegetation Continency If vegetation success criteria are not achieved based on average density calculations from combined plots over the entire restoration area, supplemental planting may be performed with tree species approved by regulatory agencies. Supplemental planting will be performed as needed until achievement of vegetation success criteria. 7.3 Scheduling and Reporting: A tentative phasing schedule for the proposed Project is presented below. Certain tasks may be dependant on seasonal ' conditions. Table 8. Project Scheduling and Reporting Proiect ID No. 060684901 (UT to Bear Creek Restoration Proiectl Task Descri tion Date of Scheduled Com letion Restoration Plan Finalized June 29, 2007 Submission of Final Desi n October 26, 2007 Permittin Initiated November 30, 2007 Advertise for Bidders Februa 29, 2008 Bid O enin March 28, 2008 Be in Construction Au st 22, 2008 End Construction December 2008 Pre are As-built Miti anon Plan and Miti anon Plan December 2008 First Year Monitorin Re ort December 2009 Second Year Monitorin Re ort December 2010 Third Year Monitorin Re ort December 2011 Fourth Year Monitorin Re ort December 2012 Fifth Year Monitorin Re ort December 2013 a KO ~ ASSOCIATES, P. C. 29 Co~tsulfin~; Engineers Project III No. OE~0684901 U"h to Bear Creek Stream Restoration Pr~~ject, ('hatham County, North Car<,>lina RESTORATION PLAN 8.0 REFERENCES Cowardin, L.M., V. Carter, F.C. Goblet, and E.T. Laroe. 1979. Classification of Wetland and Deepwater Habitats of the United States. United States Department of the Interior, Fish and Wildlife Service. Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. United States Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. Griffith, G.E. 2002. Ecoregions of North and South Carolina. Reston Virginia. United States Geological Society (map scale 1:1,500,000). Harman, W. H. et al. 1999. Bankfull Hydraulic Geometry Relationships for North Carolina Streams. AWRA Wildland Hydrology Symposium Proceedings. Edited by: D. S. Olsen and J. P. Potyondy. AWRA Summer Symposium. Bozeman, MT. Manning, R. 1891. On the Flow of Water in Open Channels and Pipes. Transactions of the Institution of Civil Engineers of Ireland. 20, 161-20. North Carolina Division of Water Quality (NCDWQ). 2005. Cape Fear River Basinwide Water Quality Plan (online). Available: http://h2o.enr.state.nc.us/Basinwide/draftCPFApri12005.htm [May 23, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. North Carolina Division of Water Quality (NCDWQ). 2006a. Final North Carolina Water Quality Assessment and Impaired Waters List (2004 Integrated 305(b) and 303(d) Report) (online). Available: http://h2o.enr.state.nc.us/tmdl/documents/2004IRCategories4-7.PDF [May 24, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. North Carolina Division of Water Quality (NCDWQ). 2006b. Draft North Carolina Water Quality Assessment and Impaired Waters List (2006 Integrated 305(b) and 303(d) Report). Public Review (online). Available: http://h2o.enr.state.ne.us/tmdl/documents/2006303dListPublicReviewDraft.pdf [May 24, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. a KO & ASSOCIATES, P. C. 30 COAS)II/JllF,' ~/),Q!!)C'NP3 Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina REST'ORA'TION PI.,AN North Carolina Division of Water Quality (NCDWQ). 2007. North Carolina Waterbodies by Subbasin (online). Available: http://h2o.enr.state.nc.us/biros/reports/basinsandwaterbodies/03-06-12.pdf [May 24, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. North Carolina Wetlands Restoration Program (NCWRP). 2001. Watershed Restoration Plan for the Cape Fear River Basin (online). Available: http://www.nceep.net/services/restplans/cape_fear_2001.pdf [May 23, 2007]. North ' Carolina Department of Environment and Natural Resources, Raleigh, North Carolina North Carolina Division of Water Quality (NCDWQ). 2006c. Final North Carolina Water Quality Assessment and Impaired Waters List (2004 Integrated 305(b) and 303(d) Report) (online). Available: http://h2o.enr.state.nc.us/tmdl/documents/2004IRCategories4-7.PDF [February 26, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. ' North Carolina Division of Water Quality (NCDWQ). 2006d. Draft North Carolina Water Quality Assessment and Impaired Waters List (2006 Integrated 305(b) and 303(d) Report). Public Review (online). Available: http://h2o.enr.state.nc.us/tmdl/documents/2006303dListPublicReviewDraft.pdf [February 26, 2007]. North Carolina Department of Environment and Natural Resources, Raleigh, North Carolina. Rosgen D. 1996. Applied River Morphology. Wildland Hydrology. Pagosa Springs, Colorado. Schafale, M.P. and A.S. Weakley. 1990. Classification of the Natural Communities of North Carolina: Third Approximation. North Carolina Natural Heritage Program, Division of ' Parks and Recreation, North Carolina Department of Environment, Health, and Natural Resources. Raleigh, North Carolina. United States Army Corps of Engineers (USAGE), United States Environmental Protection Agency (USEPA), North Carolina Wildlife Resources Commission (NCWRC), Natural Resources Conservation Service (NRCS), and North Carolina Division of Water Quality (NCDWQ). 2003. Stream Mitigation Guidelines. State of North Carolina. United States Department of Agriculture (USDA). 2006. Soil Survey of Chatham County, North Carolina. United State Department of Agriculture, Natural Resources Conservation Service. a KO c4c ASSOCIATES, P. C. 31 Constrhing Engineers Project ID No. 06~E~84901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN United States Geological Survey (USGS). 1974. Hydrologic Unit Map. Reston, Virginia. United States Geological Society (map scale I :500,000). C~ a KO & ASSOCIATES, P. C. 32 ' Cvnsrrllin~; En~,~inecrs Project ID No. 060684901 UT to Bear Creek Stream Restoration ProjecC, Chatham County, North Carolina RESTORAT[ON PLAN APPENDIX A ' FIGURES ' , KO cPc ASSOCIATES, P. C. rs ~,• Co r ullar~, ~n~urcer•s Chatham County North Carolina PROJECT A-TGE~ 2302 1176 i 902 113 9 ~~ ' ~' ~~ ~ /~ _ , , ___ / 902 1009, 2301 ~ - 10D9 ~ ' ~ , ~' 230 0, PROJECT o iooo 2000 I ~ I ~ I ~~ FEET r~- 7 Vicinity Map ~ ~,~~~ ~~f ~~> > ~ - Restoration Ylan l1'I' to Bear Creek n ~ KO ~ ASSOCIATES, 1-.C. Chatham County, North Carolina Consulting Engineers 10/1 SCNAUB OR., SUITE #20l RALEIGI(, N. C. 27606 ~/~t,11 late: c 'n7 Figure: 1 (919) 851-6066 APPENDIX A PROJECT A~R~~.A o Zooo 400o Chatham County ~ ~ ~ ~ ~ ~ ~ ~ ~ North Carolina f t~-~~ LEGEND Northern UT - R'atershed Southern U"I' -Watershed Project Area r~ 7 1',~c ~~y~titc~n ~ ~ KO ~ ASSOCIATES, P.C. a Consulting Engineers 1011 SCHAUB OR., SUITE #202 RALE/GH, N. C, 27606 (919) 851-6066 Watershed Topo Map Kestoration Ylans U"I~ to Bear Creek Chatham County, North Carolina Date: 5!iL07 figure: 2 APPENDIX A LEGEND Symbol Name Symbol Name ChA - Chewacla and Wehadkee GkE - Georgeville-Badin Complex CkC - Cid Silt Loam GoC - Goldston-Badin Complex Cm8 - Cid-Lignum Complex NaB - Nanford-Badin Complex GaB - Georgeville Silt Loam NaC - Nadford-Badin Complex GaC - Georgeville Silt Loam RvA - Riverview Silt Loam GeB2 - Georgeville Silty Clay Loam St6 - State Sandy Loam GkD - Georgeville-Badin Complex - Project Area 0 1000 2000 ~ KO ~ ASSOCIATES, P.C. Consulting Engineers 1011 SCHAUB DR., SUITE #202 RALE/GH, K.C. 27606 (919) 851-6066 Soil Survey Map Restoration Plans U"1~ to Bear Creek Chatham County, North Carolina l) ate: 53 Ln 7 I I+ figure: 3 r~ ' ~(.'nS~tf ~I11 APPENDIX A • pp1 ~ ~ ~ X73 ~ ~. - ~+, , t. ~1~j t ~ ~ .. ~ • ~ r ~ ~~., ~ ~- . ~' ~' . Bea 'reek '' ~ ~ . . ~ ' 1~_ 1 ~~•~~: \ -.,~~!_ ,l l ~•Cemtrbtlli~htirfr~1~I ;,~ r ~ _- ,~ '! ,1 ,. ~.. ~~4 \ ~'~ ~ 1 \' ~~ 1t~`.. 113 9 ~~ . I ,~~ ~~ ~ ~ ~ `` _~ 1\~I ~ •.. _ ~ .~, ti _ ~~~~, !~ '1' ',100'9 ~ ,I ~ j~, ~- ... \ ~?3Ul - ~ ,_ .1 1 , '~ ~ J PROJECT o iooo 2000 ~~ r~~T I -- Hydrological r 7 Features Map ',(..'()Sy~tClil Restoration Ylan U"I' to Bear Creek Chatham County, North Carolina KO ~' ASSOCIATESt P.C. Consulting Engineers 10/1 SCHAUB DR., SU/TE #202 R.9LEIGN, N. C. 27606 llate: ~~7 I'l~llCe: 4 (9/9) 85I-6066 APPENDIX A Chatham County . ,._, ; :... North Carolina PROJECT AREA _ - . 4.«.. 64 ~ 1506 ~, _ ( ~ ` 1511 ~, - . - - -~ ~~ ~~~~ = ~ ~ 2211 ~~. 64 ," - 1506 ~ ~~ 216 9 ~ ~ ~~ ~~ ~~~ - ~~" ;~" , ~ ', i, ,_ , ~ ;~ / ~ _ -~ - ~ -~ - '~ ~; ~ ~ ~ ~~ -~ "- ~ ~~ -~ ~ ~ ~ ---- 2167 -- -~' 2168 - 1506 PROJECT o iooo aooo I ~ I ~ I AREA rI:IJT r~ Landrum Creek 1 ~ t Vicinity Map 'ECOS~ S ('ill Kestoration Plan '' UT to Bea C k KO ~ ASSOCIATES, 1-.C r ree Chatham County, North Carolina Consulting Engineers 101] SCHAUB DR., SWTE #202 BALE/GH, N. C. 27606 (919) 851-6066 Date: fvOl~D7 higure: 5 APPENDIX A ~ 1000 2000 ~~-~a: ~~ LEGEND Watershed PROJECT AREA Chatham County North Carolina r~ ~' ~'(ri~~tCl l l / _ KO ~ ASSOCIATES, P.C. Consulting Engineers 101! SCHAUB DH., SUlTF, #202 RALE/GH, N. C. 27606 (919) 851-6066 Landrum Creek Watershed Map Restoration Ylans U1' to Bear Creek Chatham County, North Carolina Uate: 6~OIN7 ~ Figure: 6 APPENDIX A LEGEND Symbol Name Gab - Georgeville Silt Loam (6/10°/ Slope) GaC Georgeville Silt Loam (2-6% Slope) RvA - Riverview Silt Loam - Project Area r ~'lc'()S~StC'Il l KO ~ ASSOCIATES, P.C. Consulting Engineers 1011 SCHAUB DR., SUITE #202 RALE/GH, N. C. 27606 (919) 85I-6066 Date: 0 500 1000 I ~ I~ I~ I~ I F L~:T Landrum Creek Soil Survey Restoration Plan LTT to Bear Creek Chatham County, North Carolina 6~D]!C)7 Figure: 7 APPENDIX A ~~ .~ ~° ~~~" titi 9 ' ~~ - ~ 1 ;' 9 0 2 - ; --~ i •~ * ~ : ~r~ ' . b~ ~~~ ~- ~~~ ~ ~ ~~ ~~ 4 ~' '~ti ~Y •~t titi ti~ ,. ~, yS~ ~~~ ~~~ ~ titi ,~,.~ -~ ~. ,~'~ ti.~~ti~ -.~~ ' ~' 1 'M ~~ If ,~~ V ,y .~ E - ~1 ~+ i y, `' i .f' ~: 1~~ !~ ,~ y ~~- LEGEND 0 500 1000 ~ ~ ~ Vegetative Communities TEET Location ~~ Project Area r 7 1',C()S~StClll KO ~ ASSOCIATES, P.C. Consulting Engineers 1011 SCHAUB DR., SUITE #202 RALEIGH, N_C. 27606 (919) 851-6066 PROJECT AREA Reference Site Vegetative Communities Map Restoration Plan UT to Bear Creek Chatham County, North Carolina Uate: S3L07 Figure: 8 APPENDIX A Project ID No. 060684901 UT to Bear Ct•eek Stream Resroration Project, Chatham County, North Carolina RESTORATION PLAN ' APPENDIX B ' SHEETS 1 l' r `I ' a KO & ASSOCIATES, P. C. Cansuhini,= End=ineers LEGEND EXISTING PROPERTY _ ~ ~ LINE AND CORNER re EXISTING TOP OF BANK x -x--x- EXISTING FENCE LINE WOODS '~ TREE EXISTING WETLAND BOUNDARY EXISTING CONDITIONS NORTHERN UT BEAR CREEK - P fi'~i ~~; m~ .~ , G~~~~ P~ 4 di I I I I rr ~iLni~v.i LEGEND TB EXISTING TOP Of BANK -x x- EXISTING FENCE LINE WOODS TREE EXISTING CONDITIONS SOUTHERN UT BEAR CREEK %- ~~\ i '' ~\\~° i - ~~~ ~~ SOUTHERN UT ~~~ I ~''~ ~ 1 ~~~ ' -~~~ yr '~ l ~ I ~ Ate/ ~ ,-M ~I G / _ ~ n ~~.~ i. /92; y~~ a~~ n '~' ~ _ i i -~. / -~ s 1 ~~ . `~~. ~~ ~ I~ I , . m w ~ ~ ~ ~a2e ~~ ~ _ _ _ I ~j ~'-- ~~ ~,~-~/ ~ FLOW DIRECTION I t ~ ~ -- - _ t;. I {~N~ ~ *J (,3» = rm~h~. \ _425 ~ _- - ~ _. ` ~ ~ ~ - i lii~ ~~ ~ ~ / ~ ~ ~ ~~ - ~~ ~ ~ ~ g~( !II~~~~/ ___ - J ~,I~ ~ ~~K i r~,E : ; i i ~: E. ` ~ BEAR CREEK LEGEND EXISTING PROPERTY LOG VANE / '" LINE AND CORNER ROOT WAD _ __ Te EXISTING TOP OF BAN K X- - EXISTING FENCE LINE ~ L-VANE WOODS TREE ~ ROCK CROSS VANE (f R OCK STEP ~`Q~ STRUCTURE LOG SILL LOG STEP SEQUENCE LOG CROSS VANE ~~ PROPOSED CONDITIONS NORTHERN UT BEAR CREEK 0 0 ~ x + 0 N 0 0 ~ ~ O `~ ICI 0 0 ~ Q ~ ~' o ~~ I ~~ ~ ° PROPOSED _ PROPOSED a ~ NORTHERN UT ~~ ~ ~ ~ EASEMENT a ~ o ~_ ~ / ~Z ~ ~ h o ~ N o + J I \I ~ I F~ ~ o ~ ~ w~:a"' Z '` 920 / ~ ~ `~ ~, w ~~ ~ ( ~~F PROPOSED FORD ~ ~"~ / ~~ ~ ~ ~ ~ CROSSING ~ ~ ~ ~ . w \ ~ R~ ~ J ~\ ~ % ~ 420 - /E/ ;~ ,~ 'r; / ~'k ~ / ~ .. - j~ ~ `r' ~~~ '~ ~ V ~ ~ ~ ~ ~ an' ~- ~ ,~ 4 ~'~~ ~ ,e ,. ~~F ~ ~ i Slb / E / ~~-~ II ~"`'~ _ ~ ~ E _ i PROPOSED ~ EXCAVATION ~ ~ J LIMITS Sze ' ~ ,~~.n~„ NOTE: EXISTING FEATURES ARE SHOWN WITH THIN LINES AND SMALL TEXT. LEGEND EXISTING PROPERTY LOG VANE 1 , -~ ~ LINE AND CORNER ROOT WAD ~ TB EXISTING TOP OF BAN K X - EXISTING FENCE LINE ~ L-VANE WOODS ROCK TREE CROSS VANE EXISTING WETLAND BOUNDARY LOG SILL ROCK STEP STRUCTURE LOG CROSS PANE LOG STEP SEQUENCE x~ ti ~0' ~~ ~~ ~~ ~~~~ F~~ .r~' ~ - G ~, ~~ ~ ~ , _ \ i - ` ~' _\ \\ z ~~ Tg ~~y ~ ;RS r ~~~F~ ~ ~ \ ~ ~~~ ~ F `\ I . \~ 1 PROPOSED FORD CROSSING ~~ ti~ o° ~x o° ti~ PROPOSED - -EASEMENT w~-----,--E----__ ~ . i ~~ ~ 1 I ~ ~ ~ 2 1 y 4' /I I \~ 1 M - T E ~~ _c_ PROPOSED CONDITIONS NORTHERN UT BEAR CREEK 420 420 410 „-. ~ '' 410 400 400 100 50 0 50 100 TYPICAL RIFFLE SECTION o° x o ~ 0 0 o ° N ~' 00 I r ~ ~ `°~ PROPOSED s EX~AVOATION ~ ,1~ ~ ~ ' ~ '' NORTHERN UT `~ LIMITS / ~ o ~~ ~ ~~:;.~ ~ ~~ 1 o ~~ ~ ~ ~ ~ ~ ~ ~ ~~~~ ~ e ~~ CR / ', // // ~ \tl~ ~ w _ ~~' ~z / ~ // ~~~ r~ i ,~~~F / ^~ PROPOSED- ~ ,~ ~ „ ~ ~ r; BANKFULL ~ a ~' ~ ~. ~~ ~~~ - ' ~'~~ ,~~~ ~ ,~~ \ ~ ;,;; i ,~ ~ `i.,p` 1S% T 9"7` 4 _ e ' agar- ~ ~ "'~ , ~.~ W M1hf 1~ N ~E -E~ E NOTE: EXISTING FEATURES ARE SHOWN WITH THIN LINES AND SMALL TEXT. /~,,. KO & ASSOCIATES, P.C. Consulting Engineers imp siauun ux, ecru: •:o~ xnuasu. n.c. naua t919J tl51fi0hfi 50 0 100 SCALE SHEET N0. Sheet 2A I PROIECi ENGINEER ~ ~~ ~ ~~ ~ ~ ~;R~ ~~ ~~ ~~ ~ 1'rE ~ ~~. ~ ~~~ i;~• 1~ b . ~,A~ P!.yt\ 1~ ~ ~/ s1 PROPOSED ~ ~ ~~ EASEMENT ~ ~ ~ ~ W I ~ F LOCATION. E RESTORATION PLAN UT TO BEAR CREEK gEpR CREEK cauNrr: CHATHAM DESIGNED BY: RVSRKW -/E', " 3 CHECKED BY: RKWiRVS DATE: ~~~~ a=I o0 0 >~ 4~s'gr LEGEND EXISTING PROPERTY LOG VANE I % ; - LINE AND CORNER ROOT WAD ~' Te EXISTING TOP OF BAN K X EXISTING FENCE LINE ~ L-VANE woods ROCK TREE ~ CROSS VANE ROCK STEP STRUCTURE LOG SILL LOG STEP SEQUENCE LOG CROSS VANE i N O ~ ~ ~ _ ~ C7 U Z ~J O i 0 0 0 o ~ c~ ~ PROPOSED BANKFULL ~ ~` - (J ~~ r w~~ I o ~ ~ ` ~'' l E ~ ~~ ~ / ~ . / ~- ~ ~ ~ ~ ~ ~ I PROPOSED CONDITIONS SOUTHERN UT BEAR CREEK -- --e -- 420 ~ I 420 410 i 410 100 50 0 50 100 TYPICAL RIFFLE SECTION 0 o ° ~ ~ L~ ~~ ~ PROPOSED EXCAVATION ~ LIMITS ~ ~ ~ .%; ~ ,- ., ~~: _ ;il~Y =-.re 0 o o + + C PROPOSED FORD CROSSING E~ ~~ ,~, ~ - tB ~ ~ ,t ~~ ~`~Z~~ FOwON ~ ~ , ~ ~ ~ ~ ~ ~ pIREC~1 - - ~ 'a.?' ~~ 7 ^~ E _ - ~___ ,, rROPOSED EASEMENT PROPOSED SOUTHERN UT ~-~', rn ~_ NOTE: EXISTING FEATURES ARE SHOWN WITH THIN LINES AND SMALL TEXT. N ~0 `` r ~~ ti ~ 2 v Z O ~ s 2 LEGEND EXISTING PROPERTY ~i",~ LOG VANE I ~ LINE AND CORNER ROOT WAD ~ re EXISTING TOP OF BANK X EXISTING FENCE LINE ~ L-VANE WOODS TREE ~ ROCK CROSS VANE ROCK STEP STRUCTURE LOG SILL LOG STEP SEQUENCE ~ LOG CROSS VANE ~ i, 0 0 PROPOSED BANKFULL ~ ~ i ~, i i C1 j N ~ ~~ i ~ U~~ PROPOSED CONDITIONS SOUTHERN UT BEAR CREEK ~.:` 0 0 ~~ PROPOSED EXCAVATION LIMITS O~ k ~~ ~~/ /~ 1- r ~, w ~~~ ~~d ~~~ ~~~ ~~~~ ~ W ,~i ~~~ W I ~ J 2 S8 ~~` r ~ F~'Ow O ~Ct10N ~ ~ ~/ / _ - -PROPOSED FOR CROSSING ~O x S~ I~ `~~ ~~ ~ ~;~ ~, PROPOSED SOUTHERN UT /__~2~ ~ n~ ~i ~~ ~ ~` _ ~ ~ ~~ ~~ ~~~ ~ \ ~~ ~k~~ ~~~ ~ s ~ ~ ~ A. ' ~ ~ C~,. ,; `~' ~~ ~~ NOTE: W EXISTING FEATURES ARE SHOWN WITH I THIN LINES AND SMALL TEXT. /~ PROPOSED EASEMENT . P ~ ~ p. AQQO/~i ArE.~ry PRO1ECf REFERENCE NO. SHEn NO. L 0 G T ~J I . AL P R f f L E l . , a n 1~ lY HJJ 1dH1 a Consulting );ngineers gEpR CREEK Sheaf 3 ~i ' , 1011 9CHAUR DR,9NIE '301 PAIBYf:H, N.G 14606 PaaEa ENGINEER .. ~ ~. (9191 BSIfi066 ',I _ _N RTHER UT BEGI NO THER UT STA O f 0 .00 _ . PROP SE . _B UL_ NK GRAD. INS ~ o o 0 ~' EXIS ING G OUND ON AL THAL __ EG _ c ^ ' , o a I. _ i 'i I ~ '~,, ~ I i. i ~ I I ~ ~ , W ,. ~. ,, . it _ ~/ \ ~ ~ ti- _` _ ^ ii. ~,, i. I ~- -.. ` ~~ I' ~' .. ' ~ ~ ~ _~~ ~, i I } ~ ~ ',, _ ~ PRO OS~p _ HA WE INVE ' T I ', i ', ~, ' ~, ~ _ ~, i ~_ I I __. .__ '~ 10 11 12 13 14 15 16 17 18 1 9 20 21 22 23 '~ i ~ . L ', T l~ 1 A PR ~I ~ , ~ __ '~ ~ _ _ __ _ TEIE a.l~ r _ , _ _ I ~ ~, I ~ I_ O o ~ i ~ I ~ ~I ~ ~ I ~ ~ II w _ . _ ' E , _ ISTI NG GR OU D ALO G TH LW~G ;_ _ a ; ~ __ , ~ W ~I _. i i _ ~ _ ~- ~ - 4 _ - _- -- -- ---- _ ~ _ I I _ _ -- ~ ~ - ~ __ ~ ~ ~ - -- -- a --- . -- ~ t-- ~ - ~ - ' RO 0 S D h'H WE, G I I V~RT ~ i ~ I ~ ~ ~ a ,, ~ I __ ~ ~ R _ i N[~ A NG 1•IN XIS, V IAL EG i j -__ F ~, ___ I ~ I i I ail _ ~ ' , '~ j ' ', ', 23 24 25 26 27 28 29 30 31 32 33 34 35 36 n ^ Q p_ ~wp Owi~~pc PROJECT REFERENCE N0. SHEET N0. LO IT D A F E ' L G TU CI -- ~ L I , . ' ^ lY. 00 ldtl LO I l' a Consulting Engineers BEAR CREEK Sheet 3A lou saws nx, suite ~xm nu.elce, n.r. xx666 ,919)8516066 PROIEC7 ENGINEER NOR ERN UT s TH u RN T _ ,__ _ _ {~?_1,j~Q 'I BEGI SO THER UT STA 0 ~- 0 OQ . ELEV = 4 6.~9 M O o ~, , ~ a o I n n o i ~ ~ N ~ 0 HER UT i i _ i ~ ~ { _ + ~ _ R I c ~ EXI$TIN GRO ND A ONG HALWE a> W + ~ M II EXISTI G '' GR Ut~ID LO G yy~~ TH' L G '' C LL~ I ' - ', i ' w I I _. ~ . _ ' _ µ-- _ ~y _ .. - ~', ~ _P. OPQSE B AN FULL. G ~ D LIN ~ _ _ 'I I I I ROP SED WE AL INYE . _ -.~__ :. ~ ' i GRO ND AL NG E ISTING TH~4L EG I~ _ , ~ ~ r-- , I _ ._ , ~ ~ ; , ~ _ PR©P ED!, T LV~EG INVERT I' _ : I '~, i ', ~, I '' I 36 37 38 39 14 41 10 11 12 13 14 15 16 L_ I ~ __ LO ~ ~ T,~J 1 AL P R ~ FI i ~ i _ _ _ SO THER OJT _ ', I 'I I O o . ar. ~ '. _~ _ j i i I I I i. ~ ~ , _ , I I - a II ~ ~ i E ISTf G, F GR i - u . L ~ G HAL G _, ~ i_ - ._ r _ _ __ ~ ~~ _1 ~ E D IS 7~ ~ UTHE N UT _ ~ ~ $T / l 4~.4I __ r i E_ , _ _ _ ~_ - - - I t i ~- ROQOS D ~A_ KFULL_ RA[~ELI E ~ ~ _ r ,_ = I 4 ~. 63 , --- -- - _, _ --- -- ~- , - ____ -~- -~ { 1 _ ~ _ ~ _ . ~ ~ _ _ _ ~ ~ , _ _ l _ _ ~ ,_ . ~RO OS D ~ H LW _ G KNV R_T _ . __ ~-- ~... I G ~ 0 I AL ND ~ ~ E N ISTING THAL G I I I I r , L I i 1 '_ ~:_ ~ ~ _ . _ _ '~ ' '~ ' ~ I ~, , i i '~ I, ~ ~ !~, ~, : 16 17 18 19 20 21 22 23 24 25 26 27 PLANTING PLAN ~o ~~ ~ NC HIGHWAY 902 LEGEND WOODS STREAM-SIDE - (1.03 Ac) ASSEMBLAGE PIEDMONT ALLUVIAL - (14.62 Ac( FOREST PIEDMONT ALLUVIAL - (3.23 Ac) FOREST (BEAR CREEK BUFFER PLANTING) RIPARIAN WETLAND - (0.39 Act Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RES"I'ORATiON PLAN 0 u ii APPENDIX C EXISTING CONDITIONS SITE PHOTOGRAPHS ' a KO ~ ASSOCIATES, P. C. Consuhing Engineers Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina KESTORATION PLAN .~ j C S ~ ~,. ' S . '~ it'.:y ' ,y ~'+.~'.tFg'F~ : _ !.r' .R'~ .. .r. .~' q. . X1,7 ... :~!; ~ `. ~„s i +w` .. a ~iV ~R. a r ~~~ ~ _ `~ ~ ~~`3 :s.. ~ st a~ a~ , ~ a j ~' .~, 1' ~ .~ ~ .a+- ~ '". eft ^~ # sal i ~ r ~ ~ ~~„r c ' s `~ t ~ y~.,_ ~,~~, i _ ~e 1 Northern UT looking downstream at cattle access point, and channel over widening. Notice aggradation where channel has over widened. Northern UT where channel is incising and mass wasting of the banks are occurring. a KO & ASSOCIATES, P. C. ConsulNn~~ En~~iru u•s APPENDIX C Project ID No. 060684901 UT to Bear ('reek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN Northern UT where mass wasting of the banks is occurring because of the loss of vegetation and incision of the channel. ~` ~a ~ ~~ ., _ '~'^ ~ ~~ , ~~. ~rr z ~ ~ .~ :: ~t'`'s ~ i Yom` 1 s I °r r° ri~p•.Y/~ .. ' ? Z+ r r~' ..~p' '~ -`~' 4 y ~ ~-~ Y Northern UT Cattle access point where the cattle are using the channel for a watering hole and cooling area. ,~_ ~tr;;:,~:~• a KO cY~ ASSOC/AYES, P. C. ConstrllDt~ En,~inea~a APPENDIX C Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATi(~N PLAN Northern UT where the channel has incised to bedrock and high shear stress is being placed on banks. Northern UT where channel has incised to bedrock and is undercutting the trees that are left on the channel banks. a KO & ASSOCIATES, P. C. C7~nsrdlint L•7~,tincu:~ APPENDIX C Project lll No. 06064901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RF~.STORATION PLAN Southern UT: notice slumpage of channel and the deep incision of bankfiill (bankfiill depth should be-just over one foot from channel Southern UT where channel has braided because of cattle access. a KO & ASSOCIATES, P. C. C~on.~u!lin,L Cn,~inea•s APPENDIX C UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN ,., ~ ,_ , ~. , ~ ' ~ - .x"t t ! ~ ~:~ 3 ~ ~~ ~ A ' ~~~ ~t ~'r Ate?, { ! v~•~ ~ r ~ 7~1 pt b ~ h r: ~ . ~ ,5} .iii, 'Y~ } ~k ~ 4Sr yy. r ~~.~~" y~' ~~t iy~ ~' 1v ~ 5 •6 4 ~ J~3 535 f ~~ ' ~ ` 4 ~ _ r ~Y ~yj R . . ~ ` tM.r 3~' ' ~ ~ ;.,,,~ ~ n''# ` - ~ '~` %~~ C~y . . tt 1°y1 \A'rti +r ff ~ ' ' ~ < ~. ~~ ~ .y Y~*4'ti. i! ~ 5 ~,,~~ - , '-+'~ ~ •.., ' .~ e g ~ ~~ ~~ ~~ ~~~4~ ,fl r y _ Jam'} r , y ,.. ~ ~ " ~ ,~ ~ «$ _ Vy Y t ~ Southern UT has incised to the point that it is undercutting existing vegetation on the banks. Southern UT: banks are experiencing mass wasting because channel is trying to increase belt width and because of the loss of vegetation. a KO d'r ASSOCIATES, P. C. Cunsullin~ En~incu•.v APPENDIX C Project 1D No. OC~0684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina REST(~RATfON PLAN Southenl UT has incised and ruts in banks due to cattle access are causing bank slumpage into the Middle of channel. . ~ ~ `; ` `f rr ` ~ ~ , ~ s r 7 i 4~ ~ -. r f -,~ -~: ~ ~ -' .. ~.. ~ p . ~ J ~~ .. _ ~~ ~Yf^(tgr~ y ~ ~. w~„~S ~ y y _ ~. . Y i W ~ ~ .. 4 _ .~r ~y ; ~~ t e' ~ ~„ : ; V, ~ ~ ' E J ~Y~ ~ ,fry k .. a1 f r ,~. ~ i t ~ ~ ~~ ~ < s j~ . ~, Southern UT: the loss of bank vegetation and cattle access has increased shear stress on banks causing mass wasting and slumpage. a KO & ASSOCIATES, P. C. C'un.~uhiu~ l:ns;incrrs APPENDIX C Project ID No. 060684901 UT to Bear Creek Streai~~ Restoration Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX D MORPHOLOGICAL STREAM CHARACTERISTICS a KO & ASSOCIATES, P. C. Canaullin~~ En~~ineer~ Project ID No. 060684901 ~' ~ I~, 1 n ~~,~ ~ ~~•.~~, `„s~ .~a7 I',~~Ir=~~,~1~,, i~ ~ . ~ EJ:~(li ~~~ County, North Carolina E~ ~:STORAT-iON Pl_AN ~, Morphological Characteristics of Northern UT Restoration Plan UT Bear Creek Stream Restoration County: Chatham County, NC Design bY~ RVSIRKW Checked by RKW ITEM Existin Conditions Pro sed Conditions Reference Reach LOCATION Northern UT to Bear Creek -Weaver Pro?ert Northern UT Bear Creek Land~un~ Creek STREAM TYPE De raded E4 C4 C4 DRAINAGE AREA, Ac - Sq Mi 1508 Ac - 2.36 S Mi 1508 Ac - 2.36 S Mi 1619 Ac - 2.53 S Mi BANKFULL WIDTH (Wye), ft 15.2 ft 19.0 ft 20.2 ft BANKFULL MEAN DEPTH (den), ft 1.37 ft 1.36 ft 1.39 ft WIDTH/DEPTH RATIO (Wye/dyer) 11.0 14.0 14.5 BANKFULL X-SECTION AREA (Ayn), ft2 20.8 ft2 25.8 ft2 28.2 ftz BANKFULL MEAN VELOCITY, fps 4.8 f s 3.5 f s 6.2 f s BANKFULL DISCHARGE, cfs 100.0 cfs 100.0 cfs 173.7 cfs BANKFULL MAX DEPTH (dma.)~ ft 1.72 ft 1.90 ft 1.87 ft BANK HEIGHT RATIO 1.35 1.00 1.02 WIDTH Flood-Prone Area (Wroa), ft 40.0 ft 100.00 ft 140.0 ft ENTRENCHMENT RATIO (ER) 2.6 5.3 6.9 MEANDER LENGTH (Lm), ft 125 - 250 ft 95.0 - 228.0 ft 94.0 - 100.0 ft RATIO OF Lm TO Wyn 8.2 - 16.5 5.0 - 12.0 4.6 - 4.9 RADIUS OF CURVATURE, ft 21 - 75 ft 38.0 - 76.0 ft 10.2 - 13.3 ft RATIO OF Rc TO Wy~r 1.4 - 4.9 2.0 - 4.0 0.5 - 0.7 BELT WIDTH, ft 41.00 - 116.00 ft 38.0 - 114.0 ft 20.0 - 77.0 ft MEANDER WIDTH RATIO 2.70 - 7.65 ft 2.0 - 6.0 1.0 - 3.8 SINUOSITY (K) 1.05 1.13 1.12 VALLEY SLOPE, ftlft 0.0066 ft/ft 0.0040 ft/ft 0.0080 ft/ft AVERAGE SLOPE (S), ft/ft 0.0062 fUft 0.0028 ft/ft 0.0077 ft/ft POOL SLOPE, ft/ft 0.0003 ft/ft 0.0011 ft/ft 0.0000 ft/ft RATIO OF POOL SLOPE TO AVERAGE SLOPE 0.0 0.4 0.0 MAX POOL DEPTH, ft 2.03 ft 2.71 ft 2.71 ft RATIO OF POOL DEPTH TO AVERAGE BANKFULL DEPTH 1.5 2.0 1.9 POOL WIDTH, ft 13.7 ft 21.85 ft 22.08 ft RATIO OF POOL WIDTH TO BANKFULL WIDTH 0.9 1.15 1.09 POOL TO POOL SPACING, ft 25.50 - 127.00 ft 22.8 - 114.0 ft 25.0 - 104.0 ft RATIO OF POOL TO POOL SPACING TO BANKFULL WIDTH 1.68 - 8.38 ft 1.2 - 6.0 1.2 - 5.1 " Existing Conditions data was taken along a reach of stream. Data, such as stream and valley slopes, may not corrospond to the entire length of channel inside of the Project Area. r a KO cYr ASSOCIATF_S. P. C. C'on.~rrllu;~ En,~incu•s APPENDIX D Project ID No. 060684~~ l1"l' to Bear Creek Stream Restoration Project, Chatham County, North Carol: RESTORATION PLAi\ Morphological Characteristics of Southern UT Restoration Plan: UT Bear Creek Stream Restoration County. Chatham County, NC Design by: RVS/RKW Checked by: RKW ITEM Existin Conditions Pro sed Conditions Reference Reach LOCATION Southern UT to L3ear Creek Weaver Pro ert~~ Southern UT Bear Cree!<: Landrum Greek STREAM TYPE De raded E4 C4 C4 DRAINAGE AREA, Ac - Sq Mi 212 Ac - 0.33 S Mi 212 Ac - 0.33 S Mi 1619 Ac - 2.53 S Mi BANKFULL WIDTH (Woa), ft 5.0 ft 8.5 ft 20.2 ft BANKFULL MEAN DEPTH (d„~), ft 1.05 ft 0.71 ft 1.39 ft WIDTHIDEPTH RATIO (Wb~/db~) q 7 12.0 14.5 BANKFULL X-SECTION AREA (Ab,~}, ft2 5.2 ftZ 6.0 ft2 28.2 ft2 BANKFULL MEAN VELOCITY, fps 4.2 f s 3.9 f s 6.2 f s BANKFULL DISCHARGE, cfs 22.0 cfs 22.0 cfs 173.7 cfs BANKFULL MAX DEPTH (dmez)~ ft 1.31 ft 1.06 ft 1.87 ft BANK HEIGHT RATIO 1.39 1.00 1.02 WIDTH Flood-Prone Area (WrPa), ft 14.3 ft 50.00 ft 140.0 ft ENTRENCHMENT RATIO (ER) 2.9 5.9 6.9 MEANDER LENGTH (Lm), ft 40 - 53 ft 42.5 - 102.0 ft 94.0 - 100.0 ft RATIO OF Lm TO Wb~, 8.1 - 10.7 5.0 - 12.0 4.6 - 4.9 RADIUS OF CURVATURE, ft 5 - 30 ft 17.0 - 34.0 ft 10.2 - 13.3 ft RATIO OF Rc TO Wb~ 1.0 - 6.1 2.0 - 4.0 0.5 - 0.7 BELT WIDTH, ft 25.00 - 36.00 ft 34.0 - 51.0 ft 20.0 - 77.0 ft MEANDER WIDTH RATIO 5.04 - 7.26 ft 4.0 - 6.0 1.0 - 3.8 SINUOSITY (K) 1.06 1.14 1.12 VALLEY SLOPE, ftfft 0.0150 ft/ft 0.0110 ft/ft 0.0087 ft/ft `~ AVERAGE SLOPE (S), fUft 0.0145 ft/ft 0.0041 ft/ft 0.0077 ft/ft POOL SLOPE, ft/ft 0.0022 ftfft 0.0016 ft/ft 0.0000 ft/ft RATIO OF POOL SLOPE TO AVERAGE SLOPE 0.2 0.4 0.0 - 0.0 MAX POOL DEPTH, ft 1.73 ft 1.42 ft 2.71 ft RATIO OF POOL DEPTH TO AVERAGE BANKFULL DEPTH 1 6 2.0 1.9 POOL WIDTH, ft 6 8 ft 9.78 ft 22.08 ft RATIO OF POOL WIDTH TO BANKFULL WIDTH 1 4 1.15 °k 1.09 POOL TO POOL SPACING, ft 6.80 - 21.50 ft 10.2 - 51.0 ft 25.0 - 104.0 ft RATIO OF POOL TO POOL SPACING TO BANKFULL WIDTH 1.37 - 4.34 ft 1.2 - 6.0 1.2 - 5.1 " Existing Conditions data was taken along a reach of stream. Data, such as stream and valley slopes, may not corrospond to the entire length of channel inside of the Project Area. a KO ~ ASSOCIATES, P. C. C'ottstrllin,L En~in«rs APPENDIX D Project ID No. OE~068490I UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX E ' RESTORATION SITE USACE ROUTINE WETLAND DETERMINATION DATA FORMS a KO ~ ASSOCIATES, P. C. Cansrrhin~~ En~~iaccrs t 1 1 1 1 1 1 1 1 Project ID No. 06068901 UT to Bear CI-eek Stream Restoration Project. Chatham County, North Carolina RESTORATION PLAN DATA FORM ROUTINE WETLAND DETERMINATION (1987 COE Wetlands Delineation Manual) Pro ect/Site: UT to Bear Creek Date: 5-23-07 A icant /Owner. EEP Coun :Chatham Irnesti a9 tor: RVS Do Normal Circumstances exist on the site? YES ND State: N_C Communi~ ID: Is the site si nifican disturbed A ical Situation ? YES ND Transact ID: Is the area a tential Problem Area? to needed. explain on reversal YES NO Plot ID: Wetlands 1, 2, 3 and 4 VEC3ETATION Dominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator 1 soft rush Herb FACW+ 9 2 se a Carex s Herb FAC 10 . 3 smartweed Pd ovum s . Herb FAC 11 American elm ~ .... ..FACW _ 1~ 5 reen ash Sa FACW 13 6 lizard's tail herb OBL 7~ Percent of Dominant Species that are OBL, FACW, or FAC (excludirx,~ FACE: 100% _ ~ - - - Remarks ~YDROLOOY [ ]Recorded Data (Describe in Remarks) WETLAND HYDROLOGY INDICATORS [ ]Stream, Lake, or Tide Guage Primary Indicators: [ ]Aerial Photographs (]Inundated [ ]Other (x ]Saturated in Upper 12 Inches ( ]Water Marks [ X ] No Recorded Data Available (]Drift Lines [ ]Sediment Deposits FIELD OBSERVATIONS (]Drainage Patterns in Wetlands Depth of Surface Water -- (in) Secondary Indicators (2 or more Required) [ ]Oxidized Root Channels in Upper 12 inches Depth of Free Water in Pit _ -- (in) [ ]Water-stained Leaves [ ]Local Soil Survey Data Depth to Saturated Soil 10" (in) [ ]FAC-Neutral Test Other l=x lain in Remarks a KO & ASSOCIATES, P. C. Consulrrn~,> En~,~inecrs APPENDIX E Project ID No. 060684901 UT to Bear Creek Stream Restoration Project Chatham County, North Carolina RESTORATION PLAN SOILS Map Unit Name (Series and Phase): Chewacla sandy loam j Drainage Class: somewhat poorly ', Taxonomy (Subgroup): Fluvaquentic Dystrochrepts Field Observations Confirm Mapped Type? YES NO PROFILE DESCRIPTION Depth Horizon Matrix Color Mottle Colors Mottle Texture, Concretions, inches __ Munsell Moist Munsell Moist AbundanceiContrast Structure, etc. j 0-5" _ 10 YR 412 10 YR 414 few/faint silt loam 5-10" 2.5 Y 5/3 __ _ 10 YR 3/6 4 common/distinct _ clay loam _ _ _. 10-16" 2.5 Y 5/2 10 YR 3/6 f common/distinct clay loam f t 1 HYDRIC SOIL INDICATORS: [ ] Histosol [ ]Concretions [ ] Histic Epipedon [ ]High Organic Content in Surface Layer in Sandy Soils [ ] Sulfidic Odor [ ] Aquic Moisture Regime [ J Organic Streaking in Sandy Soils [ ]Listed on Local Hydric Soils List [ ]Reducing Conditions [ ]Listed on National Hydric Soils List [ x ] Gleyed or Low-Chroma Colors [ j Other (Explain in Remarks) ' Remarks: WETLAND DETERMINATION _Hydr~hytic,~ge etation Present? YES NO Wetland Hydrology Present? YES NO Is this Sampling Point Within a Wetlarxi? YES NO ._~ Hydric Soil Present? YES NO Conditions were extremely dry upon site visit. Was very difficult to get augur past first 6" of soil because there was no moisture in the upper horizons of the majority of soils on-site. a KO & ASSOCIATES, P. C. ConsrrRin~~ Engineei•a APPENDIX E Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX F ' RESTORATION SITE NCDWQ STREAM CLASSIFICATION FORM a KO & ASSOCIATES, P. C. Consnllin~,= End,=inee~s Project ID No. 060684901 UT to Rear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN North Carolina Division of Water Quality -Stream Identification Form; Version 3.1 Date: /_~.~~~ Project: (f~ 1(p ~i~r-~jjLatitude: 3rj°~r ~f$~n Evaluator: ~v Site: ~~~~ ill Longitude:'79~ ~r ~~3tf4 Total Points: ~~ ~~ ty / // ~ Other~~ ~ /.. Slmam is al toast intermitlonl Coun G t/~ o.g 0uad Name: ~ H t r 9 or renniat if t 30 5. ~ I rr~ A. Geomorpholo9y__iSubtotal = 2 7 ~ Absent __ m Weak _ Moderate ___ Strong ,__ 1'. Continuous bed and bank 0 1 1 . , 2 _ + 2. Sinuosity 0 t ~ ~ 3 In-channel structure: nftie-pool sequence ~ 0 1 2 _ - - -- _ _. 4. Soli texture or stream substrate sorting ; 0 1 2 _ ~ __ __. ----~ -- - 5. Active/relic floodpiain 1 0 1 2 6. Depositional bars or benches 0 1 ~ 2 , 7. Braided channel 0 ~ _ 2 ~ 3 __, _T _~._ _~ _. _ __- +---. ,. _., ._ _ __ 8. Recent alluvial deposits 0 1 2 ~ ' 9' Natural levees 0 ~ 2 i 3 10, Headcuts 0 1 ~ 3 11. Grade controls 0 _ 0 5 _ 1 1 12 Natural valley or dreinageway ' 0 + 0 5 -~- 1 f a__ _ 13. Second or greater order channel on i in • _- USGS or NRCS map or other documented No = 0 j Yes = 3 evidence. ~ _ ; _ Man-made d+tches are not rated, see discussions m manual B. Hydrology (Subtotal = 1~•S ) 14. Groundwater Ibwldischarge _ ~ _ 0 i t 2 _. _._ 15. Water in channel and > 48 hrs since rain, or ~ 1 _~ Water in channel » dry_or growing, season 0 I 1 I 2 ~ j} 16. Leaflitler ~~~~ 1 u _.. --~._~_._ ._ I 0.5 _ - 17. Sediment on plants or debns 0 0.5 ' ~_-~~1 5 - _ _ i __ _ .- ~ .~ _ _-.._ . w - - 18. Organic debris lines or piles (Wrack lines) i 0 ~ 0.5 t 19. Hydric soils (redoximorphic features) present? ; No 0 Yes = -_ ___ _ __. _ ~_ ___J C. Biolnav SSuhtotal = ~ 1 20 . Fibrous roots in channel - 21 . Rooted plants in channel I J t - 3 - . _ 3 . , ~ _ __t 1 _0 ~, __ . 1 0 _.._ 22. Crayfish -- _. _ .. - - 0 ~ t OS J _~ _. _._ 1 5 23. Bivalves ~ _ _~ 1 ~ - 2 -F ~ 3 _.. __. `".. -~w -_ 24. Fish 0 0.5 ; 5 ~ 25. Amphibians _. 0 _. 0.5 ____ 1 , 1 5 26. Macrobenthos (note diversity and abundance) l ~ 0 5 1 ~ 1 5 2T. Filamentous algae: periphyton 1 ~ 2 1 3 28. Iron oxidizing t>acterialtungus. ~ 0.5 ~ 1 I 1 5 ( 29 . Wetland plants in streambed ~_ _ u ~ _ _ FAC 0 5. FA CW = 0.75 OBL = t 5 SAV = 2.0; Other = J Hems cu ana c ~ rows on me presence or ugano pants, Hem [y rocuses on the presence or aquade or WBUand pWnts. Sketch. t~iotes (use back skis of this form for additional notes. ) a KO c4c ASSOCIATES, P. C. Consuitin,~~ En~irrcus APPENDIX F Project ID No. 060684901 U-I• to Bear Creek SU-calk Restoration Project, Chatham County, North Carolina RESTORATInN PLAN North Carolina Division of Water Quality -Stream Identification Form; Version 3.1 Date: ~/.3~ -~(~ Project: ~. f~ Latitude: ° (o r Evaluator: ~S Site: ~p~elos-+ ~ Longitude: 0 r ~' --- --- ---~ - --- _ _ __ --- - ___-------75__?-~ _ 3g,~1 _ v~ Total Points: / / ~ Other Srmam is at least intermittent ~ County (mow o s Ouad Namo: ~y~ G`~r~( Az if or perenrna! it z 30 A. Geomorpholo9Y _(Subtotal = ~ > j Absent 1 ~ Weak T ,~ -Moderate -Strong 4~ - -- -- I 1'. Continuous bed and bank _ 0 1 - l _ ------. _.___ _ _ _ ? . ? _- _ 2 Sinuosity 0 i _ ~ 3 r - -- --- _ r - r , 3 In-channel structure: riffle-pool sequence 0 1 I ~ 3 - - __- 4 Soil texture or stream substrate sortng 0 1 2 m C 5 Active relic Noodplam ' 0 1 ~ ~-_ 3 (6. Depos~UOnal bars or benches 0 1 T ~ 3 ' 7. Braided channel 0 1 1 .__.~_.. 3 8 Recent alluvial deposits 0 1 Q 3 ----- --- 9' Natural levees ~ - p -_~._ _ , . _ _Z 3 10 Headcuts -__ 0 1 ~ 3 ___ - - _ _ - 11 Grade controls 0 0.5 1 1 j 12 Natural valley or drainageway 0 0.5 1 _ -- - _ 13. Second or greater order channel on exisbn USGS or NRCS map or other documented o = 0 Yes = 3 evidence. ' Man-made ditches are not rated, saps discussions in manual B. Hydrology (Subtotal = /•s ) 14. Groundwater gow/discharge i 0 1 2 3 ~ 15 Water m channel and > 48 hrs since rain, or _ Water mchannel - d or rowin season , 0 ~ 1 2 16 Leaflitter 1 5 1 j 0 5 _ _ ____ _ - _ _ 17. Sediment on plants or debris ~ 0 ' 0.5 ~ I 1 5 18 Organic debris lines or piles (Wrack Imes) 0 ' 0.5 1 1 5 ~ t 19 Hydric soils (redoximorphic features) present? No 0 } Yes - C. Biology (Subtoial = s ) - - - - Z- T-- ~ - 20 Fibrous roots in channel ~ ; -b --- - __ 21 . Rooted plants in channel ~ ~ 2 ~ 0 • --- - --- i 22. Crayfish _ 0 5 1 1 5 23. Bivalves __ i i 2 ~ - _3 24. Fish ' 0 ? 0.5 __ ---- -- - - _ 1 5 -._ A _.._.... _ 25. Amphibians J 0 , - _-_ -0.5 ~- - _~ 1 5 _.._ 26. Macrobenthos (note diversely and abundance) ~ ~ 0.5 1 1 5 27. Filamentous algae; periphyton ~ 1 2 3 28. Iron oxidizing bacteria/fungus I 0 29 . W It ae~nd plants in streambed ~ FAC = 0.5: FACW = 0.75: OBL = 1.5 SAV = 2.0; they = 0 Items 20 and 21 tows on the presence or upland plants. Item 29 focuses on the presence of aquatic or wetlaM plants. Notes Sketch: (use bark side of this torrn for additional notes. ) T~• I a KO & ASSOCIATES, P. C. Cunsrr(dn~,r Engineers APPENDIX F Project ID No. 060684901 UT to Bear Creek Strewn Restoration Project, Chatham County, North Carolina RES'i'ORA'TION PLAN APPENDIX G RESTORATION SITE CONCURRENCE LETTERS 1. US Fish and Wildlife Letter 2. NCSHPO Letter 1 a KO & ASSOCIATES, P. C. Cunsultin~~ En~~ineers North Carolina Wildlife Resources Commission 11 June 2007 Mr. W. Grant Lewis Axiom Fnvironmcntal. Inc. ' 212E Rowland Pond Drive Willow Springs, NC 27592 Richard I3. Hamilton, Executive Director ' Subject: Bear Creek Stream Restoration, Chatham County, North Carolina. ' Dear Mr. Lewis: I3it~l~~gis1~ with the North Carolina Wildlife Resources Commission have reviewed the subject ' document. Qur comments are provided in accordance with provisions of the Fish and Wildlife Coordination Act {4$ Stat. 401, as amended; 16 U.S.C. 661-667d) and North Carolina General Statutes (G.S. 1 13-131 et seq.). The North Carolina Ecosystem Enhancement Program has identified Bear Creek and an unearned tributary to Bear Creek in the Cape Fear River basin as stream restoration sites. Approximately 4,$00 linear feet of Bear Creek and two unnamed tributaries will be restored. The site is located in a pasture heavily grazcxi by livestock. Primary restoration activities include: construct a stable, riffle-pool stream channel, reconnect the stream with its historic floodplain, remove livestock from the stream corridor, eliminate invasive plant species, minimize disturbance to mature vegetation, create a natural vegetated buffer along the streams, and establish a conservation easement. 'Chere are records for the federal and state endangered Cape Fear shiner (Notropis mekrst~u~h~>lu.e), the federal species of concern and state endangered brook floater {Alasmidonta varicosa), the federal species of concern and state special concern Carolina darter (Etheostoma Collis), the state threatened creeper {Strophitus undulatr~.s), and the state special concern notched rainbow (villosa constricta) in Bear Creek. We offer the following recommendations to minimize impacts to aquatic and terrestrial wildlife species and in particular to Cape Fear shiner. l . An in-water work moratorium take place during t March to 31 July to minimize impacts to spawning fish and to the survivability of young fsh. Mailing Address: Division of Inland Fisheries77. 1721 Mail Service Center Raleigh, NC 27699-1721 Telephoee: (919)APPIIIX UFax: X919) 707-0028 I}ii;~e 1 1 lone 2007 Gear Creek Stream Rest~xation 2. Sediment tintl erasion control measures that meet the design standards for sensitive watersheds should be used. hurther, any excavated materials should not be stockpiled where sediment will eruiie to surface waters. 3. Avoid impacts to any large mature trees along each stream and establish native, forested buffers in riparian areas to improve terrestrial wildlife habitat and provide a travel corridor for wildlife SpeC1eS. "Thank you f~~r the opportunity to review this project. If you require further assistance, please contact our office at (336) 449-7625. Sincerely, ~h~.~~e.-~.~ Shari L. Bryant Piedmont Region Coordinator Habitat Conservation Program ec: Ryan lleise, WRC David Rabon, USFWS APPENDIX G Project ID No. 060684901 U"h to E3ear Creek Strea~~~ Kestoration Project, C hatham County, North Carolina RESTC)RAT10N PLAN CONCURENCE LETTER FROM NCSHPO HAS NOT BEEN RECEIVED AT THIS POINT. U ii 1 1 ' a KO c~c ASSOCIATES, P. C. Consulling Engineers ' APPENDIX G Project ID No. 060684901 UT to Bear Creek Stream Restoration Project. Chatham County, North Carolina RESTORA"PION PLAN APPENDIX H SEDIMENT TRANSPORT ANALYSIS a KO ~ ASSOCIATES, P. C. Consttlling Eni,~ineers Project ID No. 060684901 LJT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN ~I 1 n EXISTING ENTRAINMENT CALCULATION FORM SUeam: UT to Bear Creek Reach: Northern UT Team: RtON, RVS Date: 5/23/2007 Information I ut Ana 17.0 DSa RItAe bed metertal D50 (mm) 7.8 D s, Bar sample D50 (mm) X0.00 D, Largest particle from bar sample {mm) 0.10 (feet) 304.6 mrrNtoot 0.0082 ~ F~cisting bankfull water surface slope (ft!tt) 1.37 d~ Existing bankfull mean depth (ft} 1.37 R ulic Redus of Kittle Cross Seaion it 1.65 y, Submerged spec weight of sediment Calcula4ion of Crttlcal DlmensioMSSS Shear Stress 2.18 Dx,lD ~ If value is between 3.7 Equation 1 will be used: T o = 0.0834(D~/D ~)'o an 1.76 D/D.,o If value is between 1.3-3.0 Equation 2 will be used: r'o = 0.0384(D,/D.,o)° ~' 0.0232 z ~~ Critical Dimensionless Shear Stress Equation used: 2 Calculatton of 8ankfull Meaux Depth Required for ErKralnment of largest Particle In Bar Sample 0.61 d, Required bankfull mean depth (flJft) d, ° T oy;D: S~ 1.37 d~ Existing benkfuN mean depth (ft) 2.25 d.ro. Exi~ing Strewn Condition: Degrading Calculation of BKF Water Surface Slops Required for Entnirrrient of Largest Particle in Bar Sample 0.0027 S, Required bankfull water wriace slope (ft) ~_ ~ oYsD~ do 0.02 5< Existing bankfull water surface slope (ft) 2.25 S/S, Exisdn Steam Condition: Degrading Sediment Tran ort V~idatlon 0.53 Benktull Shear Stress 7~ =yRS (Ib/R2) y =Specific Weigh of water = 62.41bs/R' 37.145 ern Moveable particle size (mm) at bankfull sheer sfrcss (predcled by the Revised Shields Diegrem ray Rosgen, 2002, and Shields Die 0.13 - 0.41bs/s1 Predicted sheer stress required to initiate movement of D, (mm) (see Revised Shieds Diagram. Rosgen. 2002. end Shields Die m Nde: If available bankfull shear stress exceeds D100 of bed, de datian antial exists. ' a KO 8r ASSOCIATES, P. C. Consullin~~ En~~inecrs APPENDIX H Project ID No. 060684901 UT to Bear Creek Stream Restoration Project. Chatham County, North Carolina RESTORATION PLAN PROPOSED CONDITIONS ENTRAINMENT CALCULATION FORM Stream: UT to Bear Credo Rearh: Northam UT Desi er: RKW, RVS Date: 5/23/2007 Intormn[fon I Area 17.00 DA Rillle bed materiel D50 (mm) .7.80 D w Bar sample D50 (mm) 90.00 D, Largest partide from bar sample (mm) 0.70 (ket) .u1t s mmRax 0.0031 Su Proposed bankfull water surface slope (iVa) 1.33 de Proposed bankfuA mean depth (R) 1.18 R sad H raulic Radius of RiMe Cross Sedron A) 1.86 y, Submerged specficweigM otsediment Cdc Wation of Critical dmarniorisss Shear Stress 2.18 DyplD 5v K value is between 37 Equation 1 will be used: r a = U.0834(D,dD ,o)~ s,z 1.78 D/D~ Ff value is beteeen 1.33.0 Equation 2 will be used: r ~„ = 0.03&1(D/D~)a e17 0.0232 r'~ Critical D'rnelsianless Shear Stress Equation used 2 Cdoulatlan of BankWll Msan Depth Required for Ertrainmera of Lspest Partida in Bar Sample 1.22 4 Required banMul mean depth (11IR) d, =?i sD~ S~ 1.33 d, Proposed bardcfutl mean depth (il) 1,09 d1d Exislinp Stream Condition StaDie CdcWadon of BKF tiVater Surtau Slope Requlrad for Enlroimrant of Largest Partide in Bar Semple 0.0028 S, Required banidull water surface slope (ft) $ = s~Y`D~ dr 0.0031 S, Existing bankfull water surface slope (ti) 1.09 S~/S, Existing Stream Corxtition• Stable Sediment T Validation 0.221 BaNCfuN Sher Stress r, =yRS (Ib1R2) y = Spedfic VYeight ofwater = 82.41bsrR' 17 - 50 mm Malleable artide size (mm at bankfull shear stress ( etlided b the Revised Shields Dia ram b R en. 2002) 0.13.0.41bsrsf Predidad sheer stress uirod to innate movement of mm see Revised Shields Die m. R en, 2002 Nde: M available beNttWl shear stress exceeds D700 of bed, d radation pdential exists a KO & ASSOCIATES, P. C. Carsrdi'ing Engineers APPENDIX H Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN EXISTINQ ENTRAINMENT CALCULATION FORM Stream: UT to Bear Creek Reach; Southern UT Team: RKW. RVS Date: 5Q32007 Information I ut Araa -12.0 DSa Riffle bed material D50 (mm) 5.5 D ~ Bar sample O50 (mm) 30.00 D, Largest particle from bar sample (mm} 0.10 (feet) 304.9 t 0.0145 S~ Existing bankfull water surface slope (ftftt) 1.05 tl~ Exlstlng bankfuil mean depth (ft) 0.85 R H dreulic Radius d Rirtle Cross Section ft 1.65 y, Submerged speeafic weight of sediment Cadeulatlon of Crttical DlmensioNess Shear Stress 2.18 DmID ,~ If value is between 37 Equation 1 will be used: i ~ = 0.0834(D,aID ~)'9 era 2.50 D/D~ If value is between 1.33.0 Equation 2 will be used: T•o = 0.0384(D,/D~)'u air 0.0170 r ~, Critical Dimensionless Shear Stress Equation used: 2 Calculation of Bankfui) Mean Depth Required for Entrainment of Largest Particle In Bar Sample 0.19 d, Required bankfull mean depth (fl/R) ~' T oy D, S~ 1.05 d~ Existing benkfuM mean depth (ft) 5.48 d.14 Existing Stream Condition: Degrading Cadculffiion of BK F Water Surface Slops Required for EntrBranent d Largest Particle in Bx Sample 0.0026 S, Required benkfull water wrface slope (ft) $ _ ~ oyzD, do 0.0145 & Existing bankfull water surface slope (ft) 5.48 S 1S, Existing Slrsam Condition: Oegrading Sediment Tian ort Validation 0.76 Bankfull Shear Stress T~ =yRS (IbAl2) y = SpecKrc Weight dwater = 62.4 Ibs/Ra 60 - 185 mm Moveable nick size mm) at bankfull shear stress ( ediaed the Revised Shields Die m b Ros en. 2002 0.13 - 0.41t>s/sf Predicted shear stress re fired to initiate movement d D mm see Revised Shields Dia m. Ros n. 2002 tide: If evailaWe bankfull shear stress exceeds D700 d bed, d datian ential exists. ' a KO & ASSOCIATES, P. C. ConstJtin~,~ En~•ineer ~ APPENDIX H Project ID No. 060684901 UT to Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN PROPOSED CONDITIONS ENTRAINMENT CALCULATION FORM Stream: UT to Bear Creek Reach: Soulhem UT Deli ner RKW, RVS Date: 5232007 Information In ut Area 12.00 Dso Riffle bed material D50 (mm) 5.50 D,a Bar sample D60 (mm} 30.00 D, largest partide from bar sample (mm) 0.10 (feet) JOt.a mmROOt 0.0041 S~ Proposed banldull water surface slope (ftlft) 0.71 d~ Proposed banidull mean depth (tt) 0.64 R Pr osed draulic Radius of RiMe Cross Section ft 1.65 y, Submerged specific weight of sediment Calculation of Critical Dimensionless Shear Stress 2.18 D D , If value is between 37 E nation 1 will be used: -r' o n» sat o q ~, = 0.0834(Dsa~ so)~ 250 D/DSa If value is between 1.33.0 Equation 2 will be used: r'„ = 0.0384(D/Dsn}'0 en, 0.0170 ,'„ Critical Oimenslonless Shear Stress Equation used: 2 Calculation of Bankfull Mean De th Required for Entrainment of Lar est Particle in Bar Sample 0.68 d, Required barddull mean depth (ftRt) d, _ -{„y,D, S~ 0.71 d~ Proposed bankfull mean depth (ft) 1.04 dt/d, Exiling Strewn Condition: Stable Calculation of BKF Water Surface Sb • Re uired for Entrainment of La aet Particle in Bar Sam le 0.0039 S, Required bankfull water surface slope (ft) S, ° .r~•~~ d~ 0.0041 S~ E>osting banMufl water surface slope (ft) 1.04 3~l5, Existi Stream Condition: Stable Sediment Trans ort Validation 0.161 BankNll Shear Stress r~ =yRS (Ib/-t2) y = Spedfie Weight of water = 62.4 Ibslit' 13 - 36 mm Moveable artide size mm at bankfull shear stress redicted b the Revised Shields Dia ram b Ro en, 2002 0.13 - 0.41b Predicted shear stress r uired to Initiate movement of mm see Revised Sttields Dia m. Ro en, 2002 Note: If available bankfull shear stress exceeds D100 of bed, d relation enlist erists. a KO & ASSOCIATES, P. C. , Consultin~~ En~•ineers APPENDIX H ' Project ID No. 060684901 UT to Bear Creek Stream Restorati~~n Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX I REFERENCE SITE PHOTOGRAPHS 1 u a KO cYc ASSOCIATES, P. C. Consnllin~,= End,=ineers Project ID No. 06068901 UT to Bear CI•eek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN Landrum Creek looking downstream from start of profile. Landrum Creek looking upstream. ' a KO cYc ASSOCIATES, P. C. Con.«lrurt L•'«,tineer:~ ' APPENDIX I Project IU No. Ob0684901 UT t~~ Bear Creek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX J REFERENCE SITE NCDWQ STREAM CLASSIFICATION FORM n 1 ' a KO & ASSOCIATES, P. C. Consulting Engineers Project 1D No. 060684901 UT to Bear Creek Stream Restoration Project. Chatham County, North Carolina RESTORATION PLAN ' NCDWQ Stream Classification Form Project Name: Landrum Creek River Basin: Cape Fear County: Chatham Evaluator: PBC Keference Keach DWQ Project Number. NIA Nearest Named Stream: Landrum Creek Latitude: 35°43' Signature: Date: 9130!02 USGS QUAD: Siler City NE Longitude: 79°21' I,ocation/Dvection: Pleasant Itill Church Rd. '`Pl. EASE NO'CE: Ijevaluator and lmrdonvrer agree the the feature is a nran-nwde Witch. then use of this jornr Is not necessary. Afro, ljtn the best projesslaral JrtQgement ojfhe eralrtator, tke jearare is a than-made ditdt and not a tnodlJled nahrral slreane-rhfs riling sydern should not be used' Primary Field Indicators: (CircleOr~NxmberPerlirx) 1 1 I<_Geomorpholoav Abseni Weak Moderate Sirone 1} Is'Ihere A Riffle-Pool Sequence? 0 I 2 3 2) Is The USDA Texture In Strcambcd ~Is.Thc Channel Sinuous?_ _ Q 1 _ ~ 3 5} Is There An AActive (C?r Relic) Is_There A Bankfull Bench Present? _ _0 h _ __ ? ~ _ 9} Ts A Continuous Bed & Ban!: Present? 0 1 2 3 (::L~.mile;.-fl~li~{-f~-IlA4~L.~4N36~X.,1s7.lSlUt1Yt11tA.lI'1Tf,~P._t,~:.SIt11.lQFW'-TT.MA1.SMtY°~:,~....... 10) Is A 20° Order Or Greater Channel (As Indicated On Tooo Man AnaGOr In Field) Present? Yes'-'d No-O PRIMARY GF.OMORPIf07.0C'=Y INDICATOR POIN7:S: II,_tlydrolotty Absent Weak Moderate Strone 1) Is There A Groundwater Flow(Discharge Present? 0 I 2 3 PRlh1ARY HYDROLOGY lND/CATOR POlN7S: II.I3iology Absent Weak Moderate Strong l,) Are. i ous~~ts Presc t Strca~tt~? _ I} ? 1 t~ i r~ 1 Afire $ivalYes Present? _ ~ ) ? 3 PRIMARY BIOLOGY INDICATOR POINTS: '7 Secondary Field Indicators: (CtrrreartNxxebe=Pere~,~1 I. Cieomotpholosty l~;is_ ere ~1 ~Iead~ut Pres~r t,.Ir~~harrgicl? _. 2)1s There A Grade Control Point in Channel? 3) Does Topography Indicate A Natu_~1..~ina_ec Way? - - SECONDARY GEO~LIORPIfOLOGY !NL)Ic a KO & ASSOCIATES, P. C. Consnllinl,= End=ineers Absent Weak Moderate Stron Q 5 ! l:S. 6 S 1 1.5 Q_ _ ,5. 1 1, ~ATOR POINT'S: APPENDIX J Project 1 D No. 06068490 1 UT to Sear Creek S1realn Restoration Project, Chatha m C ounty, North Carolina RESTORATION PLAN II. Hvdroloet Absent R'cak Moderate; Stron 1) is "rhts Year's (Ur Last's) Leaf litter Present In Strcambcei? 1.5 I 5 U 2) Is_Sedtmenl (h~ Plants. (C)r l~ehris) Present? 0 ,~ I l .S 3) Are A\(rack Lines Present? U .5 - --~-- - 1.5 -----` 4) Is Water In Channel And '48 Hrs. Since 0 5 I -- , 1:5 I aSl K»oWn Rainy !`\Y)7'F• tf 1JitrG hwffrnled t,e R9 4bmv Sldp7'!ds Sttp 4nd n3 Relm,'") - 5) Is'fhere Water In ('hannel lhuing I)ry 0 ___ .5 ____ 1 ___ ____ L5 Conditioru Ur In Urowt~ 5gaso~'? G) Are fiydric Soils Present In Sides Of Channel (Or !n Ileadcut)~ Yes-15 IVo-U SECONDARY HYDROLOGY INDICATOR POINTS: Z IIL 13iolotrv Absent 1Veak Moderate Stron>z I) Arc Fish Prescnt? _ 0 5 1 1.5 2) Are Amnhihians Present? 0 5 1 1 5 3) Are Aquaticfurtles Present'? 0 _ 5 _ 1 , 1.5 ~~ Arc Crayf sh_Prescnt? 0 .5 1 L 5 ~) Are Macrohenthos Present? 0 S ~ 15 G) Are lron (hidiztn8, f3actena/Fungus Presents 0 _ .5 , 1 1.5 7)IS.FilarncntousAlgac_Prescnt?. 0 5 I 1 S 8) Are Wetland Plants In Streambed'? N!A SAV Atcxtly ORI. Alostly FACW Alostly FAC. Madly FA('[I Mostly IJPi, `NOTE: tjTwat Absrnce OJAtt Ptmus to Srreambed 2 1 .75 .5 0 0 .4 s Na,ed A6ore Skin 77ds .L'rn UNIBSS S1 y P,rse~u"1 _ SECONDAR3' p10LOGY IR'DICATOR POINTS: 3 TUT.4I, POINT~S'(Primary t Seconda(r•)= 42 (If Greater ThanOrt_qual70t9!'oinLs%7(eStreamisAtl,east Inte~rnittent) a KO & ASSOCIATES P C . , . ' Consultin~~ En~;ineet~ APPENDIX J Project ID Na 060684901 UT to Bear C: reek Stream Restoration Project, Chatham County, North Carolina RESTORATION PLAN APPENDIX K HEC-RAS ANALYSIS KO & ASSOCIATES, P. C. a ConstJtin . -„ ,', , ,,., ~~ ~,uc I~ UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS C 1 t 1 River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) Upstream End of Project 3908 Bankfull 100 418.89 418.38 -0.51 3908 100 Year 1300 426.12 425.92 -0.20 3808 Bankfull 100 418.54 418.23 -0.31 3808 100 Year 1300 424.99 425.00 0.01 3784 Culvert 0.00 3775.29 Bankfull 100 418.46 418.07 -0.39 3775.29 100 Year 1300 421.70 421.87 0.17 3760.25 Bankfull 100 418.11 3760.25 100 Year 1300 422.13 3745.21 Bankfull 100 418.01 3745.21 100 Year 1300 421.94 3730.18 Bankfull 100 417.99 3730.18 100 Year 1300 422.17 3715.14 Bankfull 100 418.03 3715.14 100 Year 1300 422.29 3700.1 Bankfull 100 417.91 3700.1 100 Year 1300 422.31 3690.07 Bankfull 100 417.85 3690.07 100 Year 1300 422.32 3674.15 Bankfull 100 418.34 417.90 -0.44 3674.15 100 Year 1300 422.26 422.32 0.06 3658.66 Bankfull 100 417.82 3658.66 100 Year 1300 422.04 3643.27 Bankfull 100 417.78 3643.27 100 Year 1300 421.82 3628.34 Bankfull 100 418.24 417.82 -0.42 3628.34 100 Year 1300 422.09 421.89 -0.20 3613.47 Bankfull 100 417.72 3613.47 100 Year 1300 421.80 3598.55 Bankfull 100 417.64 3598.55 100 Year 1300 421.85 NORTHERN TRIB -PAGE 1 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 3580.85 Bankfull 100 417.68 3580.85 100 Year 1300 421.92 3566.36 Bankfull 100 418.08 417.59 -0.49 3566.36 100 Year 1300 421.91 421.89 -0.02 3535.63 Bankfull 100 417.54 3535.63 100 Year 1300 421.92 3520.7 Bankfull 100 417.52 3520.7 100 Year 1300 421.86 3506.68 Bankfull 100 417.43 3506.68 100 Year 1300 421.87 3493.45 Bankfull 100 417.41 3493.45 100 Year 1300 421.87 3480.25 Bankfull 100 417.44 3480.25 100 Year 1300 421.88 3467.32 Bankfull 100 417.33 3467.32 100 Year 1300 421.91 3447.64 Bankfull 100 417.77 417.30 -0.47 3447.64 100 Year 1300 421.70 421.93 0.23 3417.59 Bankfull 100 417.28 3417.59 100 Year 1300 421.93 3386.22 Bankfull 100 417.17 3386.22 100 Year 1300 421.85 3372.06 Bankfull 100 417.14 3372.06 100 Year 1300 421.76 3357.89 Bankfull 100 417.17 3357.89 100 Year 1300 421.64 3343.5 Bankfull 100 417.06 3343.5 100 Year 1300 421.51 3329.81 Bankfull 100 417.02 3329.81 100 Year 1300 421.35 3316.58 Bankfull 100 417.02 416.99 -0.03 3316.58 100 Year 1300 421.20 421.00 -0.20 NORTHERN TRIB -PAGE 2 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS t 1 River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 3305.51 Bankfull 100 416.87 3305.51 100 Year 1300 420.53 3272.38 Bankfull 100 416.76 3272.38 100 Year 1300 420.60 3252.62 Bankfull 100 416.72 416.75 0.03 3252.62 100 Year 1300 420.83 420.60 -0.23 3231.66 Bankfull 100 416.65 3231.66 100 Year 1300 420.53 3190.27 Bankfull 100 416.62 416.52 -0.10 3190.27 100 Year 1300 420.51 420.21 -0.30 3180.47 Bankfull 100 416.53 3180.47 100 Year 1300 420.25 3171.14 Bankfull 100 416.40 3171.14 100 Year 1300 419.97 3131.86 Bankfull 100 416.31 3131.86 100 Year 1300 419.67 3110.59 Bankfull 100 416.28 3110.59 100 Year 1300 419.93 3085.33 Bankfull 100 416.18 3085.33 100 Year 1300 420.06 3024.44 Bankfull 100 416.40 416.08 -0.32 3024.44 100 Year 1300 420.44 419.99 -0.45 3010.79 Bankfull 100 416.09 3010.79 100 Year 1300 419.97 2998.25 Bankfull 100 415.99 2998.25 100 Year 1300 419.94 2978.22 Bankfull 100 415.97 2978.22 100 Year 1300 419.72 2958.19 Bankfull 100 416.19 416.00 -0.19 2958.19 100 Year 1300 420.19 419.64 -0.55 2938.16 Bankfull 100 415.90 2938.16 100 Year 1300 419.30 NORTHERN TRIB -PAGE 3 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 2918.13 Bankfull 100 415.92 2918.13 100 Year 1300 419.06 2898.1 Bankfull 100 416.01 415.82 -0.19 2898.1 100 Year 1300 419.71 419.02 -0.69 2863.98 Bankfull 100 415.97 415.74 -0.23 2863.98 100 Year 1300 419.60 418.97 -0.63 2845.01 Bankfull 100 415.73 2845.01 100 Year 1300 419.17 2810.18 Bankfull 100 415.63 2810.18 100 Year 1300 419.16 2798.59 Bankfull 100 415.59 2798.59 100 Year 1300 419.12 2776.98 Bankfull 100 415.83 415.55 -0.28 2776.98 100 Year 1300 419.26 418.99 -0.27 2753.71 Bankfull 100 415.40 2753.71 100 Year 1300 418.70 2728.99 Bankfull 100 415.34 2728.99 100 Year 1300 418.72 2711.96 Bankfull 100 415.34 2711.96 100 Year 1300 418.71 2694.1 Bankfull 100 415.56 415.25 -0.31 2694.1 100 Year 1300 418.93 418.72 -0.21 2664.76 Bankfull 100 415.18 2664.76 100 Year 1300 418.69 2646.47 Bankfull 100 415.17 2646.47 100 Year 1300 418.61 2629.72 Bankfull 100 415.07 2629.72 100 Year 1300 418.57 2597.38 Bankfull 100 414.98 2597.38 100 Year 1300 418.26 2581.94 Bankfull 100 413.87 414.95 1.08 2581.94 100 Year 1300 417.40 418.14 0.74 NORTHERN TRIB -PAGE 4 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 2566.09 Bankfull 100 414.82 2566.09 100 Year 1300 417.88 2523.4 Bankfull 100 413.87 414.70 0.83 2523.4 100 Year 1300 417.51 417.81 0.30 2504.13 Bankfull 100 413.85 414.70 0.85 2504.13 100 Year 1300 417.45 417.72 0.27 2484.27 Bankfull 100 414.60 2484.27 100 Year 1300 417.63 2447.48 Bankfull 100 414.44 2447.48 100 Year 1300 417.53 2443 Bankfull 100 414.45 2443 100 Year 1300 417.54 2438.34 Bankfull 100 413.67 414.36 0.69 2438.34 100 Year 1300 417.19 417.53 0.34 2395.15 Bankfull 100 414.29 2395.15 100 Year 1300 417.48 2386.61 Bankfull 100 414.26 2386.61 100 Year 1300 417.45 2378.3 Bankfull 100 414.13 2378.3 100 Year 1300 417.38 2334.3 Bankfull 100 412.89 413.93 1.04 2334.3 100 Year 1300 416.51 417.04 0.53 2326.68 Bankfull 100 413.96 2326.68 100 Year 1300 416.98 2319.12 Bankfull 100 413.81 2319.12 100 Year 1300 416.82 2265.43 Bankfull 100 413.59 2265.43 100 Year 1300 416.17 2258.02 Bankfull 100 413.63 2258.02 100 Year 1300 416.25 2250.65 Bankfull 100 412.52 413.45 0.93 2250.65 100 Year 1300 415.80 416.05 0.25 NORTHERN TRIB -PAGE 5 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 2172.93 Bankfull 100 412.38 413.19 0.81 2172.93 100 Year 1300 415.57 415.36 -0.21 2163.32 Bankfull 100 413.21 2163.32 100 Year 1300 415.36 2153.67 Bankfull 100 413.13 2153.67 100 Year 1300 415.35 2123.48 Bankfull 100 412.93 2123.48 100 Year 1300 415.27 2120.58 Bankfull 100 412.94 2120.58 100 Year 1300 415.27 2117.36 Bankfull 100 412.84 2117.36 100 Year 1300 415.26 2070.67 Bankfull 100 412.10 412.76 0.66 2070.67 100 Year 1300 415.20 415.19 -0.01 2057.74 Bankfull 100 412.73 2057.74 100 Year 1300 415.08 2044.14 Bankfull 100 412.62 2044.14 100 Year 1300 414.90 2000.47 Bankfull 100 411.90 412.49 0.59 2000.47 100 Year 1300 414.89 414.71 -0.18 1993.46 Bankfull 100 412.50 1993.46 100 Year 1300 414.63 1986.21 Bankfull 100 412.38 1986.21 100 Year 1300 414.56 1937.38 Bankfull 100 412.27 1937.38 100 Year 1300 414.54 1919.41 Bankfull 100 412.27 1919.41 100 Year 1300 414.51 1904.23 Bankfull 100 412.18 1904.23 100 Year 1300 414.51 1881.96 Bankfull 100 412.09 1881.96 100 Year 1300 414.47 NORTHERN TRIB -PAGE 6 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 1866.6 Bankfull 100 412.08 1866.6 100 Year 1300 414.42 1835.03 Bankfull 100 411.04 412.04 1.00 1835.03 100 Year 1300 414.32 414.37 0.05 1811.31 Bankfull 100 411.88 1811.31 100 Year 1300 414.32 1779.59 Bankfull 100 410.83 411.82 0.99 1779.59 100 Year 1300 414.21 414.28 0.07 1761.25 Bankfull 100 411.80 1761.25 100 Year 1300 414.26 1748.7 Bankfull 100 411.78 1748.7 100 Year 1300 414.26 1721.89 Bankfull 100 411.57 1721.89 100 Year 1300 414.24 1719.07 Bankfull 100 411.59 1719.07 100 Year 1300 414.22 1716.28 Bankfull 100 410.59 411.48 0.89 1716.28 100 Year 1300 414.11 414.22 0.11 1691.35 Bankfull 100 411.41 1691.35 100 Year 1300 414.17 1680.95 Bankfull 100 411.39 1680.95 100 Year 1300 414.15 1671.46 Bankfull 100 411.28 1671.46 100 Year 1300 414.14 1635.27 Bankfull 100 410.43 411.20 0.77 1635.27 100 Year 1300 413.96 414.08 0.12 1621.55 Bankfull 100 411.17 1621.55 100 Year 1300 414.01 1608.38 Bankfull 100 411.01 1608.38 100 Year 1300 414.00 1561.73 Bankfull 100 410.84 1561.73 100 Year 1300 413.91 NORTHERN TRIB -PAGE 7 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 1528.72 Bankfull 100 410.24 410.78 0.54 1528.72 100 Year 1300 413.72 413.87 0.15 1492.58 Bankfull 100 410.57 1492.58 100 Year 1300 413.83 1442.26 Bankfull 100 410.59 1442.26 100 Year 1300 413.75 1436.66 Bankfull 100 410.58 1436.66 100 Year 1300 413.73 1431.56 Bankfull 100 410.26 1431.56 100 Year 1300 413.72 1391.9 Bankfull 100 409.55 409.62 0.07 1391.9 100 Year 1300 413.34 413.67 0.33 1380.12 Bankfull 100 409.71 1380.12 100 Year 1300 413.66 1367.97 Bankfull 100 409.52 1367.97 100 Year 1300 413.65 1333.06 Bankfull 100 408.90 1333.06 100 Year 1300 413.60 1311.49 Bankfull 100 408.91 1311.49 100 Year 1300 413.54 1287.83 Bankfull 100 408.70 1287.83 100 Year 1300 413.51 1258.39 Bankfull 100 408.35 408.27 -0.08 1258.39 100 Year 1300 413.01 413.48 0.47 1230.44 Bankfull 100 408.38 1230.44 100 Year 1300 413.48 1200.7 Bankfull 100 408.04 408.19 0.15 1200.7 100 Year 1300 412.24 412.46 0.22 1165.94 Bankfull 100 407.75 1165.94 100 Year 1300 411.68 1157.98 Bankfull 100 407.89 1157.98 100 Year 1300 412.28 NORTHERN TRIB -PAGE 8 OF 9 APPENDIX K UT BEAR CREEK NORTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL (ft) Backwater (ft) 1149.4 Bankfull 100 407.67 407.79 0.12 1149.4 100 Year 1300 411.81 412.20 0.39 1099.17 Bankfull 100 406.91 407.03 0.12 1099.17 100 Year 1300 411.37 412.41 1.04 1095.59 Bankfull 100 406.58 1095.59 100 Year 1300 412.39 1091.76 Bankfull 100 406.44 1091.76 100 Year 1300 412.39 1079.12 Bankfull 100 406.77 406.42 -0.35 1079.12 100 Year 1300 411.26 410.59 -0.67 Downstream End of Project NORTHERN TRIB -PAGE 9 OF 9 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge cfs) Existing WSEL ft Proposed WSEL ft) Backwater ft Upstream End of Pro'ect 2701 Bankfull 22 428.34 428.34 0.00 2701 100 Year 250 433.42 433.39 -0.03 2601 Bankfull 22 428.33 428.33 0.00 2601 100 Year 250 433.41 433.39 -0.02 2576 Culvert 0.00 2552.08 Bankfull 22 424.75 426.73 1.98 2552.08 100 Year 250 426.96 428.63 1.67 2541.69 Bankfull 22 426.66 2541.69 100 Year 250 427.97 2531.3 Bankfull 22 424.78 426.46 1.68 2531.3 100 Year 250 427.03 428.25 1.22 2505.97 Bankfull 22 426.39 2505.97 100 Year 250 428.18 2502.22 Bankfull 22 424.73 426.38 1.65 2502.22 100 Year 250 426.91 428.17 1.26 2497.89 Bankfull 22 426.33 2497.89 100 Year 250 428.16 2465.54 Bankfull 22 426.24 2465.54 100 Year 250 428.09 2460.95 Bankfull 22 426.22 2460.95 100 Year 250 428.00 2456.15 Bankfull 22 426.16 2456.15 100 Year 250 427.99 2428.42 Bankfull 22 424.39 426.04 1.65 2428.42 100 Year 250 426.55 427.82 1.27 2418.36 Bankfull 22 426.03 2418.36 100 Year 250 427.76 2407.86 Bankfull 22 425.95 2407.86 100 Year 250 427.62 2391.4 Bankfull 22 425.87 2391.4 100 Year 250 427.50 SOUTHERN TRIB -PAGE 1 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge cfs Existing WSEL ft Proposed WSEL ft) Backwater (ft) 2384.84 Bankfull 22 425.86 2384.84 100 Year 250 427.52 2379.14 Bankfull 22 425.82 2379.14 100 Year 250 427.48 2362.93 Bankfull 22 425.72 2362.93 100 Year 250 427.43 2354.87 Bankfull 22 425.70 2354.87 100 Year 250 427.29 2344.85 Bankfull 22 423.89 425.58 1.69 2344.85 100 Year 250 425.86 427.25 1.39 2320.34 Bankfull 22 425.48 2320.34 100 Year 250 427.10 2306.98 Bankfull 22 425.45 2306.98 100 Year 250 427.02 2293.94 Bankfull 22 425.38 2293.94 100 Year 250 426.98 2270.67 Bankfull 22 423.15 425.30 2.15 2270.67 100 Year 250 425.42 426.89 1.47 2264.54 Bankfull 22 425.27 2264.54 100 Year 250 426.81 2258.75 Bankfull 22 425.18 2258.75 100 Year 250 426.74 2238.81 Bankfull 22 425.09 2238.81 100 Year 250 426.57 2234.57 Bankfull 22 425.08 2234.57 100 Year 250 426.53 2231.43 Bankfull 22 425.01 2231.43 100 Year 250 426.50 2204.52 Bankfull 22 424.71 2204.52 100 Year 250 426.32 2194.94 Bankfull 22 424.73 2194.94 100 Year 250 426.17 SOUTHERN TRIB -PAGE 2 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL ft) Proposed WSEL ft) Backwater ft 2186.46 Bankfull 22 424.61 2186.46 100 Year 250 426.10 2157.99 Bankfull 22 421.90 424.14 2.24 2157.99 100 Year 250 424.38 425.86 1.48 2147.25 Bankfull 22 424.22 2147.25 100 Year 250 425.64 2135.88 Bankfull 22 424.14 2135.88 100 Year 250 425.46 2111.61 Bankfull 22 423.65 2111.61 100 Year 250 425.18 2100.79 Bankfull 22 423.53 2100.79 100 Year 250 424.85 2092.02 Bankfull 22 423.36 2092.02 100 Year 250 424.65 2067.78 Bankfull 22 423.09 2067.78 100 Year 250 424.48 2059.08 Bankfull 22 422.90 2059.08 100 Year 250 424.24 2046.52 Bankfull 22 422.74 2046.52 100 Year 250 424.03 2026.71 Bankfull 22 422.34 2026.71 100 Year 250 423.83 2019.31 Bankfull 22 422.18 2019.31 100 Year 250 423.82 2011.69 Bankfull 22 422.12 2011.69 100 Year 250 423.78 1992.6 Bankfull 22 421.68 1992.6 100 Year 250 423.30 1987.43 Bankfull 22 421.78 1987.43 100 Year 250 422.85 1983.43 Bankfull 22 421.69 1983.43 100 Year 250 422.69 SOUTHERN TRIB -PAGE 3 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL ft) Proposed WSEL ft Backwater (ft 1969.91 Bankfull 22 421.38 1969.91 100 Year 250 422.90 1960.23 Bankfull 22 421.48 1960.23 100 Year 250 422.93 1953.4 Bankfull 22 420.07 421.42 1.35 1953.4 100 Year 250 421.69 422.95 1.26 1898.25 Bankfull 22 420.64 1898.25 100 Year 250 422.18 1888.51 Bankfull 22 420.73 1888.51 100 Year 250 422.18 1880.15 Bankfull 22 420.65 1880.15 100 Year 250 422.17 1867.48 Bankfull 22 420.41 1867.48 100 Year 250 422.17 1856.93 Bankfull 22 418.37 420.44 2.07 1856.93 100 Year 250 421.01 422.15 1.14 1846.46 Bankfull 22 420.31 1846.46 100 Year 250 422.14 1826.43 Bankfull 22 419.87 1826.43 100 Year 250 421.70 1811 Bankfull 22 419.95 1811 100 Year 250 421.63 1795.59 Bankfull 22 419.86 1795.59 100 Year 250 421.63 1777.36 Bankfull 22 419.52 1777.36 100 Year 250 421.28 1765.25 Bankfull 22 417.30 419.52 2.22 1765.25 100 Year 250 420.39 420.97 0.58 1753.12 Bankfull 22 419.36 1753.12 100 Year 250 420.71 1738.2 Bankfull 22 419.12 1738.2 100 Year 250 420.68 SOUTHERN TRIB -PAGE 4 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge cfs Existing WSEL (ft Proposed WSEL (ft) Backwater (ft) 1727.85 Bankfull 22 419.12 1727.85 100 Year 250 420.58 1718.41 Bankfull 22 419.06 1718.41 100 Year 250 420.51 1689.41 Bankfull 22 416.36 418.63 2.27 1689.41 100 Year 250 419.50 420.20 0.70 1683.99 Bankfull 22 418.69 1683.99 100 Year 250 420.00 1674.69 Bankfull 22 418.60 1674.69 100 Year 250 419.95 1646.58 Bankfull 22 418.51 1646.58 100 Year 250 419.91 1634.1 Bankfull 22 418.46 1634.1 100 Year 250 419.80 1617.4 Bankfull 22 418.29 1617.4 100 Year 250 419.66 1596.68 Bankfull 22 418.19 1596.68 100 Year 250 419.53 1580.47 Bankfull 22 415.72 418.18 2.46 1580.47 100 Year 250 418.88 419.47 0.59 1564.57 Bankfull 22 418.09 1564.57 100 Year 250 419.37 1558.46 Bankfull 22 417.81 1558.46 100 Year 250 419.18 1551.8 Bankfull 22 417.88 1551.8 100 Year 250 419.05 1544.99 Bankfull 22 417.79 1544.99 100 Year 250 419.03 1518.67 Bankfull 22 417.28 1518.67 100 Year 250 418.82 1510.87 Bankfull 22 417.36 1510.87 100 Year 250 418.78 SOUTHERN TRIB -PAGE 5 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs Existing WSEL ft) Proposed WSEL ft Backwater (ft) 1503.66 Bankfull 22 415.34 417.29 1.95 1503.66 100 Year 250 417.77 418.75 0.98 1481.04 Bankfull 22 417.20 1481.04 100 Year 250 418.63 1468.76 Bankfull 22 417.16 1468.76 100 Year 250 418.50 1453.68 Bankfull 22 417.07 1453.68 100 Year 250 418.23 1445.62 Bankfull 22 416.83 1445.62 100 Year 250 418.15 1440.97 Bankfull 22 416.81 1440.97 100 Year 250 418.12 1436.23 Bankfull 22 416.69 1436.23 100 Year 250 418.09 1422.19 Bankfull 22 414.90 416.48 1.58 1422.19 100 Year 250 417.28 417.64 0.36 1418.93 Bankfull 22 416.45 1418.93 100 Year 250 417.70 1415.97 Bankfull 22 416.39 1415.97 100 Year 250 417.57 1385.24 Bankfull 22 415.88 1385.24 100 Year 250 417.22 1382.32 Bankfull 22 415.73 1382.32 100 Year 250 417.25 1377.9 Bankfull 22 415.65 1377.9 100 Year 250 417.27 1364.76 Bankfull 22 414.64 415.27 0.63 1364.76 100 Year 250 416.96 417.05 0.09 1358.17 Bankfull 22 415.14 1358.17 100 Year 250 417.09 1353.19 Bankfull 22 415.06 1353.19 100 Year 250 416.90 SOUTHERN TRIB -PAGE 6 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS River Station Storm Event Discharge (cfs) Existing WSEL (ft) Proposed WSEL ft) Backwater ft) 1337.62 Bankfull 22 414.60 1337.62 100 Year 250 416.24 1320.35 Bankfull 22 414.47 1320.35 100 Year 250 415.98 1305.76 Bankfull 22 414.38 414.31 -0.07 1305.76 100 Year 250 416.67 415.64 -1.03 1293.97 Bankfull 22 414.05 1293.97 100 Year 250 415.63 1286.89 Bankfull 22 413.88 1286.89 100 Year 250 415.78 1281.35 Bankfull 22 413.73 1281.35 100 Year 250 415.56 1271.19 Bankfull 22 413.44 1271.19 100 Year 250 415.53 1263.54 Bankfull 22 413.54 1263.54 100 Year 250 415.53 1257.49 Bankfull 22 413.29 413.47 0.18 1257.49 100 Year 250 415.62 415.43 -0.19 1242.47 Bankfull 22 413.08 1242.47 100 Year 250 415.09 1234.45 Bankfull 22 413.18 1234.45 100 Year 250 414.96 1226.44 Bankfull 22 412.06 413.07 1.01 1226.44 100 Year 250 414.17 414.88 0.71 1204.54 Bankfull 22 412.62 1204.54 100 Year 250 414.77 1203.25 Bankfull 22 412.72 1203.25 100 Year 250 414.77 1201.95 Bankfull 22 412.66 1201.95 100 Year 250 414.45 1195.4 Bankfull 22 410.72 412.36 1.64 1195.4 100 Year 250 413.04 414.27 1.23 SOUTHERN TRIB -PAGE 7 OF 8 APPENDIX K UT BEAR CREEK SOUTHERN TRIBUTARY HEC-RAS ANALYSIS 1 i River Station Storm Event Discharge (cfs) Existing WSEL ft Proposed WSEL ft) Backwater (ft) 1188.77 Bankfull 22 412.44 1188.77 100 Year 250 414.32 1177.85 Bankfull 22 412.32 1177.85 100 Year 250 414.32 1165.71 Bankfull 22 409.88 412.04 2.16 1165.71 100 Year 250 413.11 414.23 1.12 1154.74 Bankfull 22 409.82 411.95 2.13 1154.74 100 Year 250 412.88 414.14 1.26 1147.11 Bankfull 22 411.78 1147.11 100 Year 250 414.12 1140.99 Bankfull 22 411.39 1140.99 100 Year 250 413.54 1135.6 Bankfull 22 411.24 1135.6 100 Year 250 413.48 1126.58 Bankfull 22 411.12 1126.58 100 Year 250 413.41 1120.45 Bankfull 22 410.86 1120.45 100 Year 250 413.48 1118.47 Bankfull 22 410.96 1118.47 100 Year 250 413.45 1116.63 Bankfull 22 410.83 1116.63 100 Year 250 413.33 1111.82 Bankfull 22 410.63 1111.82 100 Year 250 413.12 1104.04 Bankfull 22 410.69 1104.04 100 Year 250 413.13 1091.67 Bankfull 22 409.24 410.60 1.36 1091.67 100 Year 250 412.08 412.95 0.87 1057.57 Bankfull 22 410.02 1057.57 100 Year 250 412.50 1054.1 Bankfull 22 410.09 1054.1 100 Year 250 412.60 1051 Bankfull 22 408.96 410.04 1.08 1051 100 Year 250 411.80 412.44 0.64 Downstream End of Pro'ect SOUTHERN TRIB -PAGE 8 OF 8 APPENDIX K Project ID No. 060684901 UT to Bear Creek Strewn Restoration Project, Chatham County, North Carolina RESTORATION PLAN ii 1 1 s APPENDIX L REGIONAL CURVE PLOTS a KO ~ ASSOCIATES, P. C. Constrlring Engineers Rural Regional Bankfull Discharge Curve L V _~ 0 M~ W ~~ ~..V~y ~.Vy l+, z d x r 0.1 1 10 100 1000 Drainage Area in SM Rural Regional Bankfull Area Curve 10 Drainage Area in SM NCSU Regional Curve y = 21.433x0671 Rz = 0.9491 Rural Regional Bankfull Mean Depth Curve ~b b m d k C-" Q a 7 Y C f4 m 0.1 ,,,., ~^" I ~ NCSU Reaches ,~.- 10 Drainage Area in SM • UT Bear Creek Stream Restoration Project Reference Cabin Branch o Reference Landrum Creek NCSU Regional Curve - -NCSU Confidence Limits - -NCSU Confidence Limits f 100 1000 Rural Regional Bankfull Width Curve a -~ -~ m z d k C" ur m ® -'' ' ® UT Bear Creek Stream Restoration Project Reference Cabin Branch o Reference Landrum Creek ', NCSU Regional Curve °~ ~NCSU Confidence Limits ~NCSU Confidence Limits 0.1 1 10 100 Drainage Area in SM 1000 Project ID No. 060684901 UT to Bear Creek Strear~~ Restoration Project, Chatham County, North Carolina RESTORATION PLAN ' APPENDIX M CE DOCUMENTATION 0 i r 1 1 a KO & ASSOCIATES, P. C. Consullin~ Enl,~ineers 1 Categorical Exclusion Form for Ecosystem Enhancement Program Projects Version 1.4 Note: Only Appendix A should to be submitted (along with any supporting documentation) as the ' environmental document. n 0 C r n - ~ . Pro eet ame: UT Bear Creek Stream Restoration Count ame: Chatham County EEP Number: 060684910 Pro eet S OnSOr: KO & Associates P.C. ro ect Gontact ame: Kevin Williams Pro ect Contact Address: 1100 Schaub Drive, Suite 202, Raleigh, NC 27606 Pro ect Contact E-mail: kwilliams@koassociates.com EEP ro eet ana er: Melonie Allen • • ~ - • • The UT Bear Creek Stream Restoration Site is encompassed within a 275 acre tract that is cleared for livestock pasture. Three tributaries (Bear Crcck and two unnamed tributaries) have been impacted by vegetative clearing, hoof shear, incision, and lateral erosion. The primary restoration objectives for the Site include 1) construction of a stable, riffle-pool stream channel, 2) reconnect Site streams with the historic floodplain, 3) removal of livestock from the stream corridor, 4) eliminate invasive vegetative species, 5) minimize disturbance to existing mature vegetation, 6) creation of a natural vegetation buffer along Silc streams, and 7) establishment of a conservation easement. The restoration concept is expected to restore approximately 4800 linear feet of stream. • ~ ~ Reviewed By: Date EEP Project Manager Conditional Approved By: Date For Division Administrator FHWA ^ Check this box if there are outstanding issues Final Approval By: Date For Division Administrator FHWA APPENI~Tx M Version 1.4, 8/18/05 -~ . w . .. Coastal Zone Mana ement Act CZMA 1. Is the project located in a CAMA county? ^ Yes Q No 2. Does the project involve ground-disturbing activities within a CAMA Area of ^ Yes Environmental Concern {AEC)? ^ No ~ N/A 3. Has a CAMA permit been secured? ^ Yes ^ No ~ N/A 4. Has NCDCM agreed that the project is consistent with the NC Coastal Management ^ Yes Program? ^ No Q N/A Com rehensive Environmental Res onse Com ensation and Liabilit Act C ERCLA 1. Is this a "full-delivery" project? ^ Yes p No 2. Has the zoning/land use of the subject property and adjacent properties ever been ^ Yes designated as commercial or industrial? ^ No N/A 3. As a result of a limited Phase I Site Assessment, are there known or potential Yes hazardous waste sites within or adjacent to the project area? ^ No ~ N/A 4. As a result of a Phase I Site Assessment, are there known or potential hazardous ^ Yes waste sites within or adjacent to the project area? ^ No © N/A 5. As a result of a Phase II Site Assessment, are there known or potential hazardous ^ Yes waste sites within the project area? ^ No Q NIA 6. Is there an approved hazardous mitigation plan? ^ Yes ^ No Q N/A National Historic Preservation Act Section 106 1. Are there properties listed on, or eligible for listing on, the National Register of Yes Historic Places in the ro'ect area? ^ No 2. Does the project affect such properties and does the SHPO/THPO concur? Yes A concurrence letter has been sent to SHPO (attached) and no reply has been received ^ NO at this time. ^ N/A 3. If the effects are adverse, have they been resolved? Yes ^ No ~ N/A Uniform Relocation Assistance and Real Pro ert Ac uisition Policies Act Uni form Act 1. Is this a "full-delivery" project? Yes No 2. Does the project require the acquisition of real estate? ^ Yes ^ No © N/A 3. Was the property acquisition completed prior to the intent to use federal funds? Yes ^ No ~ N/A 4. Has the owner of the property been informed: ^ Yes * prior to making an offer that the agency does not have condemnation authority; and ^ No * what the fair market value is believed to be? Q NIA APPEND~X M Version 1.4. 8/18/05 ' 0 u i L n i • • ~ • ~ •• . w • •• American Indian Reli ious Freedom Act AIRFA 1. Is the project located in a county claimed as "territory" by the Eastern Band of ^ Yes Cherokee Indians? Q No 2. Is the site of religious importance to American Indians? ^ Yes ^ No © N/A 3. Is the project listed on, or eligible for listing on, the National Register of Historic ^ Yes Places? ^ No ~ NIA 4. Have the effects of the project on this site been considered? ^ Yes ^ No © N/A Anti uities Act AA 1. Is the project located on Federal lands? Yes ©No 2. Will there be loss or destruction of historic or prehistoric ruins, monuments or objects ^ Yes of antiquity? ^ No © N/A 3. Will a permit from the appropriate Federal agency be required? ^ Yes ^ No ~ N/A 4. Has a permit been obtained? Yes ^ No ~ N/A Archaeolo ical Resources Protection Act ARPA 1. Is the project located on federal or Indian lands (reservation)? Yes ~ No 2. Will there be a loss or destruction of archaeological resources? Yes ^ No ~ NIA 3. Will a permit from the appropriate Federal agency be required? Yes ^ No ~ N/A 4. Has a permit been obtained? Yes ^ No Q N/A Endan ered S ecies Act ESA 1. Are federal Threatened and Endangered species and/or Designated Critical Habitat Q Yes listed for the count ? ^ No 2. Is Des~nated Critical Habitat or suitable habitat present for listed species? ^ Yes Designated ritica[ Habitat for Cape Fear Shiner is located in Chatham County in the Deep River, Rocky River, ai2d Bear ~ NO Creek. The nearest Critical Habitat is 11 miles downstream from the Site; therefore, this project will not effect Critical H N 'ta is resent w't in t t r r r ^ N/A 3. Are T8~E species present or is the project being conducted in Designated Critical ^ Yes Habitat? ^ No ~ N/A 4. Is the project "likely to adversely affect" the species and/or `'likely to adversely modify" Yes Designated Critical Habitat? ^ No ~ N/A 5. Does the USFWS/NOAA-Fisheries concur in the effects determination? Yes ^ No ~ N/A 6. Has the USFWS/NOAA-Fisheries rendered a "jeopardy" determination? ^ Yes ^ No Q N1A 8 Version 1.4, 8/18/05 APPENDIX M Executive Order 13007 Indian Sacred Sites 1. Is the project located on Federal lands that are within a county claimed as "territory° ^ Yes b the EBCI? /^ No 2. Has the EBCI indicated that Indian sacred sites may be impacted by the proposed ^ Yes project? ^ No / NIA 3. Have accommodations been made for access to and ceremonial use of Indian sacred Yes sites? ^ No / NIA Farmland Protection Polic Act FPPA 1. Will real estate be acquired? ~ Yes ^ No 2. Has NRCS determined that the project contains prime. unique, statewide or locally ~ Yes important farmland? ^ No ^ NIA 3. Has the completed Form AD-1006 been submitted to NRCS? ~ Yes Foy°m AD-1006 has been sent to NRCS (attached). ^ NO ^ NIA Fish and Wildlife Coordination Act FWCA 1. Will the project impound, divert, channel deepen, or otherwise controlJmodify any ~ Yes water bod ? ^ No 2. Have the USFWS and the NCWRC been consulted? Q Yes A concurrence letter has been sent to USFWS and NCWRC (attached) and no reply ^ NO has been received at t{zis time. ^ NIA Land and Water Conservation Fund Act Section 6 f 1. Will the project require the conversion of such property to a use other than public, Yes outdoor recreation? / No 2. Has the NPS approved of the conversion? Yes ^ No NIA Ma nuson-Stevens Fishe Conservation and Mana ement Act Essential Fish Ha bitat 1. Is the project located in an estuarine system? ^ Yes ~ No 2. Is suitable habitat present for EFH-protected species? ^ Yes ^ No ~ NIA 3. Is sufficient design information available to make a determination of the effect of the ^ Yes project on EFH? ^ No Q NIA 4. Will the project adversely affect EFH? ^ Yes ^ No ~ NIA 5. Has consultation with NOAA-Fisheries occurred? Yes ^ No NIA Mi rato Bird Treat Act MBTA 1. Does the USFWS have any recommendations with the project relative to the MBTA? ^ Yes A concurrence letter has been sent to USFWS, no reply has been received at this time. ^ NO 2. Have the USFWS recommendations been incorporated? ^ Yes ^ No N/A Wilderness Act 1. Is the project in a Wilderness area? ^ Yes ~ No 2. Has a special use permit and/or easement been obtained from the maintaining ^ Yes federal agency? ^ No ~ NIA APPENDI~ M Version 1.4, 8118/05 ' ' ~` y~ '` .~ Axiom Environmental, Inc. 2126 Rowland Pond Drive Willow Spring Raleigh, North Carolina 27592 919-215-1693 Axiom Environmental. Inc. ' May 21, 2007 Renee Gledhill-Earley Environmental Review Coordinator North Carolina State Historic Preservation Office 4617 Mail Service Center Raleigh, NC 27699-4617 ~~ Subject: UT Bear Creek Stream Restoration Project, Chatham County 07-006 Dear Ms. Gledhill-Earley, The purpose of this letter is to request a concurrence letter for historic architectural and archaeological surveys and resources within the UT Bear Creek Restoration Site, a potential stream restoration project depicted on the attached Site Location Map. The UT Bear Creek Restoration Site includes approximately 4,800 linear feet of Bear Creek and two unnamed tributaries to Bear Creek located in southern Chatham County (see attached figures). The site is located in pasture land that is heavily grazed by livestock, resulting in erosion and degraded stream function. ' The primary restoration activities at the Site include 1) construction of a stable, riffle-pool stream channel, 2) reconnect Site streams with the historic floodplain, 3) removal of livestock from the stream corridor, 4) eliminate invasive vegetative species, 5) minimize disturbance to existing mature vegetation, 6) creation of a natural vegetation buffer along Site streams, and 7) establishment of a conservation easement. The restoration concept is expected to restore approximately 48001inear feet of stream. Please note that no structures, including buildings, bridges, or monuments are to be affected by the project. The nearest building to the project is greater than 100 feet from the construction limits and all impacts are to be contained within 70 feet of the existing stream channel. We thank you in advance for your timely response concerning historic architectural and archaeological issues from your office. I would appreciate receiving such letter for this project at your earliest convenience. Please feel free to contact us with any questions or concerns that you may have concerning the project. Sincerely, ~, Mr. W. Grant Lewis ' Axiom Environmental, Inc. Attachments: Figures 1 -4 ' cc: Mr. Kevin Williams, Project Manager ' APPENDIX M ~~_ ''~` ~~ ~~ Axiom Environmental, Inc. May 22, 2007 Axiom Environmental, Inc. 2126 Rowland Pond Drive Willow S~~ring Raleigh, North Carolina 27592 919-215-1693 Alan Walters United States Department of Agriculture Natural Resources Conservation Service 600 West Innes Street Salisbury, North Carolina 28144 Subject: UT Bear Creek Stream Restoration Project, Chatham County Dear Mr. Walters, 07-006 The purpose of this letter is to request completion of Form AD-1006 (Farmland Conversion Rating Form) for prime, unique, statewide, or local important farmland. Form AD-1006 is required for our project to ensure compliance with respect to the Farmland Protection Policy Act (FPPA) from the proposed UT Bear Creek stream restoration project (Weaver Property). The project is depicted on the four attached maps. The UT Bear Creek Restoration Site includes approximately 4,800 linear feet of Bear Creek and two unnamed tributaries to Bear Creek located in southern Chatham County (see attached figures). The site is located in pasture land that is heavily grazed by livestock, resulting in erosion and degraded stream function. The primary restoration activities at the Site include 1) construction of a stable, riffle-pool stream channel, 2) reconnect Site streams with the historic floodplain, 3) removal of livestock from the stream corridor, 4) eliminate invasive vegetative species, 5) minimize disturbance to existing mature vegetation, 6) creation of a natural vegetation buffer along Site streams, and 7) establishment of a conservation easement. The restoration concept is expected to restore approximately 4800 linear feet of stream. We thank you in advance for your timely response concerning a Form AD-1006 (Farmland Conversion Rating Form). Please feel free to contact us with any questions or concerns that you may have concerning the project. Sincerely, Mr. W. Grant Lewis Axiom Environmental, Inc. Attachments: Figures 1 -4 Form AD-1006 cc: Mr. Kevin Williams, Project Manager APPENDIX M /\ Y ~; ~ Axiom Environmental, Inc. 2126 Rowland Po~ad Drive Willow Spring Raleigh, North Carolina 27592 919-215-1693 Axiom Environmental, Inc. May 24, 2007 Alan Walters United States Department of Agriculture Natural Resources Conservation Service 600 West Innes Street Salisbury, North Carolina 28144 Subject: UT Bear Creek Stream Restoration Project, Chatham County 07-006 Dear Mr. Walters, Please find attached the completed Form AD-1006 Farmland Conversion Impact Rating form. I appreciate your quick turn around with regards to completing the form. Please feel free to contact us with any questions or concerns that you may have concerning the project. Sincerely, Mr. W. Grant Lewis Axiom Environmental, Inc. Attachments: Completed Form AD-1006 cc: Mr. Kevin Williams, Project Manager ' APPENDIX M r ,..~~ - ZI 2c t' ~ ~ i r ~,..,~ 5r.< ~ ,."~ ~~ - ,. ~ , ~. '` /~ y - ~ ~ . _p = ~, ..®_ _A ~, - ~ ~ ~ ~ 1 ~ __ _ _. _ .. y _ _ . . . __. ,. ,y ,. (_..._...~~-J ~ tt..rv .. ~ .. !)~.~J F!F - ()~~~1~ d ; . t ,` '~'' ~C,~.J s }6'~ ~~ _.,., _ _ ._._.. -._ _.. ~ _ . ,~ .. c~_ .. _ ___ _ . - -- __.a. 4Ls ~ ... ~ ~ ~'d~S2ir4 F.. vg r .i Ar tc~ .~ .;4r. .__~ ,,_.,. _-.. a .:,z _ ~ , - t,, ..: .. _ ~ _ r __. ~ 2. _._. 3 _ ~ . f _. _~.. _._. _:__ _ ._. _~ .. ~ _ I _ _: ~ i _ _ :_ I _ _H. . 1 ~ ,. _. . ,:nf ~ rjr G~ ~..c t; .7 _,j F{u~g ~ a .f E ~ u~ ~f,v71 Ir t. -m 97i r: r, ~ ;_ ~ .~ ___ ~_ ~ _ ~ -_ -- .r , ~. ~. . _ __ . ~ ~ _ - _ ~° ~ Y ~ .. ~. ., . .. __ __ . - ~ ~ s _ __ . - .. _ _ ~~~ ,_ ~ _ _ -~ ° _ _. : ~ { , t _ __ PA~TV rT~M,r tsSnj:..„od tq.~'/:CS / ~dk ,lu v;an tc r~= .__ ._ _ ~ , . ; ~ _ ~t . '_ _ ~ . t~tr~dhya 4'&I+-r ! $ha i:~ btl G.u!r HrY u ~J uJ ? i.t a' `Y ~ 7 _. _.._ t __ 1 _.~ _ __ F ~r,T ., f r~, pi ~ Y .' c1 i~, F'„-tk ,,,.+fa,:,~.y; „~.;.5v c S;tr ~< , . ,: f 'Sa7 rnCri( C+ fa v _i 7(rt~. C _r!!,r, J +e c, 1,r iart ~~ 7 i.F R #!7~ ~ C t w'1 ~ 1.. .ni is r . ti ~..~~ r Jff ~ C~ ..._ _ _. 4.. -._~- ~_. _ ~... ;: t ., ,. ~ / L s :< _ ~ i ». ` f , ~, 111 ~~ ~ ~ I , ,: ~~_ ,. ~,.. _ ~ _ ~ , - ~~ . "1 __ r i ,~_.: f 5 .1 - ___. - - --_. ~ j .~ i ~. _ r ,.,.., ,F - ~ 5 _ _ -- _ . __ _. T is ;~ _ _ _ ~ _ t f ,~ _ m. :. Y - ~ _~- ~ {{ ... ~. G .. q C;f4i 4LKR1^.f -3 tm „',k .+S ,tSa c.F'tii ~~~'.'iT5 1 .~ , ~ ./.._ 1 - -...,_ _ h~n:i e ''Ge ~;~'~I~rfC'hr ezd~r 'Aptn,.t' t _~ ~~ ~ w _ I ` `i ~ ~ _ I ,f __. -....a_ _ _.,._.._ .. ___ _ .. _ ......_. ..._.., ~ ~ ~ ~ .~.... .. ~ _ _ _..... , y T=3. ~l 1 f i}*;~ ~-?[.E~{ { ~'C.r'.' 4. [f5'>.- ~ r C r ~ i, _~ ~ I ~~ ,_ ~.~..~. .~.... .......~... ..~... ~,..., ?'zs b comA'ertn,, ~~ F.. ~ ~ aq..n ~ ~hr,. f; ~, u. ~s; ~ .,. _ _Y _ __.e_ d.~ _._. ...._ _. ~. { ...._ ..,,Y. _ ~. ... ~. - - . _ ..__. J ~ _ ~ ~, ~{ d t'..5'c tl dJ? u. t_t,~t2 ir* t` ~ ~ ~ r' V C r , ~, ~ ~ ~ <, ~ ~ ~ !' l l` ~.. .. . C _. ! . 1 ._. ~ _ ~ I ~. t~t-it~tr~ :~ , ,,~~d L« '>~~ .>_..kiic r ~ .stn , eta<~n ~tf 1'a~1 ;I I f ~ ~~ APPENDIX M ~~Y ~~`" °~ Axiom Environmental, Inc. 2126 Rowland Pofad Drive Willow Spring Raleigh, North Carolina 27592 919-215-1693 Axiom Environmental, Inc. L i May 21, 2007 Shannon Deaton NC Wildlife Resources Commission Division of Inland Fisheries 1751 Varsity Drive NCSU Centennial Campus Raleigh, NC 27606 Subject: UT Bear Creek Stream Restoration Project, Chatham County 07-006 Dear Ms. Deaton, The purpose of this letter is to request comment on any possible issues that might emerge with respect to the Fish and Wildlife Coordination Act (FWCA) from the proposed UT Bear Creek Restoration project. The project is depicted on the four attached maps. The UT Bear Creek Restoration Site includes approximately 4,800 linear feet of Bear Creek and two unnamed tributaries to Bear Creek located in southern Chatham County (see attached figures). The site is located in pasture land that is heavily grazed by livestock, resulting in erosion and degraded stream function. The primary restoration activities at the Site include 1) construction of a stable, riffle-pool stream channel, 2) reconnect Site streams with the historic floodplain, 3) removal of livestock from the stream corridor, 4) eliminate invasive vegetative species, 5) minimize disturbance to existing mature vegetation, 6) creation of a natural vegetation buffer along Site streams, and 7) establishment of a conservation easement. The restoration concept is expected to restore approximately 4800 linear feet of stream. We thank you in advance for your timely response concerning a letter of concurrence from your office for the FWCA. I would appreciate receiving such letter for this project at your earliest convenience. Please feel free to contact us with any questions or concerns that you may have concerning the project. u 0 Sincerely, Mr. W. Grant Lewis Axiom Environmental, Inc. Attachments: Figures 1 -4 cc: Mr. Kevin Williams, Project Manager APPENDIX M Y ~u North Carolina Wildlife Resources Commission ~_- Richard B. Hamilton, Executive Uirecior 1 1 June 2007 Mr. W. Grant Lewis Axiom Environmental. [nc. 2126 Rowland Pond Drive Willow Springs, NC 27592 Subject: Bear Creek Stream Restoration, Chatham County, North Carolina. Dear Mr. Lewis: Biologists with the North Carolina Wildlife Resources Commission have reviewed the subject document. Our comments are provided in accordance with provisions of the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. G61-667d) and North Carolina General Statutes (G.S. 1 13-131 et seq.). The North Carolina F,cosystem Enhancement Program has identified Bear Creek and an unnamed tributary to Bear Creek in the Cape Fear Kiver basin as stream restoration sites. Approximately 4.800 linear feet of Bear Creek and two unnamed tributaries will be restored. "i~he site is located in a pasture heavily grazed by livestock. Primary restoration activities include: construct a stable, riffle-pool stream channel, reconnect the stream with its historic floodplain, remove livestock from the stream corridor, eliminate invasive plant species, minimize disturbance to mature vegetation, create a natural vegetated buffer along the streams, and establish a conservation easement. 'T'here are records for the federal and state endangered Cape I~ear shiner (Notrnhi.c meki.~•t~~chr~la.et. the federal species of concern and state endangered brook floater (Alasmidonta varicosa), the federal species ofconcern and state special concern Carolina darter (Etheostoma Collis), the state threatened creeper (.Strophitus undulatus), and the state special concern notched rainbow (Villosa constricta) in Bear Creek. W'e offer the following recommendations to minimize impacts to aquatic and terrestrial wildlife species and in particular to Cape Fear shiner. An in-water work moratorium take place during 1 March to 31 July to minimize impacts to spawning fish and to the survivability of young fish. Mailing Address: Division of [nland Fisheries 1721 Mail Service Center Raleigh, NC 27699-1721 ' Telephone: (919) 707-0220 Fax: (919) ?07-0028 APPENDIX M ' h,~,,~. , i i June 2007 t3s,:ar Creek Stream Restoration ? Sediment and erosion control measures that meet the design standards far sensitive watersheds should be used. hr~irther, any excavated materials should not he stockpiled where sediment will erode to surface waters. 3. Avoid impacts to any large mature trees along each stream and establish native, forested buffers iii riparian areas to improve terrestrial wildlife habitat and provide a travel corridor for wildlife species. T•l~ank you for the opportunity to review this project. If you require further assistance, please contact our office at (336) 449-7625. ' Sincerely, Shari L. Bryant Piedmont Region Coordinator ' 1-labitat Conservation Program ec: Ryan Heise, WRC David Rabon, USFWS APPENDIX M ___~ /!!' ~~ Axiom Environmental, Inc. Axiom Environmental, Inc. 2126 Rowland Pond Drive Wrllo~l~ Spring Raleigh, North Carrolirza 27592 919-215-1693 May 22, 2007 Dale Suiter US Fish and Wildlife Service Raleigh Field Office P.O. Box 33726 Raleigh, NC 27636 Subject: UT Bear Creek Stream Restoration Project, Chatham County Dear Mr. Suiter, 07-006 ' The purpose of this letter is to request comment on any possible issues that might emerge with respect to the Migratory Bird Treaty Act (MBTA), the Fish and Wildlife Coordination Act (FWCA), and the Endangered Species Act (ESA) from the UT Bear Creek stream restoration project. The project is depicted on the four attached maps. Site Description and Proposed Activities The UT Bear Creek Restoration Site includes approximately 4,800 linear feet of Bear Creek and two unnamed tributaries to Bear Creek located in southern Chatham County (see attached figures). The site is located in pasture land that is heavily grazed by livestock, resulting in erosion and degraded stream function. The primary restoration activities at the Site include 1) construction of a stable, riffle-pool stream channel, 2) reconnect Site streams with the historic floodplain, 3) removal of livestock from the stream corridor, 4) eliminate invasive vegetative species, 5) minimize disturbance to existing mature vegetation, 6) creation of a natural vegetation buffer along Site streams, and 7) establishment of a conservation easement. The restoration concept is expected to restore approximately 4800 linear feet of stream. Federally Protected Species Based on the May 10, 2007 United States Fish and Wildlife Service (USFWS) list, 4 federally protected species are listed for Chatham County. The following table lists the federally protected species for Chatam County, indicates if potential habitat exists within the Site, and gives a biological conclusion for each species. North Carolina Natural Heritage Program (NCNHP) records were reviewed on May 21, 2007 and no known federally protected species are documented within or in the vicinity of the Site. The nearest documentation of a federally protected species (Cape Fear shiner) is located approximately 6 miles south of the Site in the Deep River. The Site is characterized by agricultural fields and is grazed by livestock. Site streams are devoid of vegetation, or have a narrow riparian fringe of disturbance adapted hardwood species including tulip poplar (Liroidendron tulipifera), sweetgum (Liquidambar sryrac~ara), and red maple (Ater rubrum). Streams are characterized by stagnant flow with substrate characterized by silt and sand, resulting from livestock hoof shear and bank erosion. APPENDIX M Mr. Dale Suiter UT Bear Creek Stream Restoration May 22, 2007 Federally Protected Species for Chatham Coun Common Name Scientific Name Page 2 Status* Habitat Present Biological Within Site Conclusion Vertebrates ............................................................................................................................................... Threatened Bald ea le Haliaeetus leueoee halz,~ zs No No Effect g p ro osed for delistin _(P.......P .............................................................~)............................................................................................................................................................................. Cape.Fear.shiner .............................................._Notropis meldstocholas.........................................._Endangered........................................................No No Effect Red ~ ockaded Picoides borealis Endangered No No Effect Vascular Plants Harperella I Ptilimnizzm nodosum I Endangered ~ No I No Effect `Endangered = a taxon "in danger of extinction throughout all or a significant portion of its range"; Threatened = a taxon "likely to become endangered within the foreseeable future throughout all or a significant portion of its range". Haliaeetus leucocephalus (bald eagle) Threatened Adult bald eagles are identified by their large white head, short white tail, and dark-brown to chocolate- brown body plumage. Immature eagles lack the white head plumage and have brown to black body plumage. In flight bald eagles can be identified by their flat wing soar. Adults average about 3.0 feet from head to tail, weigh approximately 10.0 to 12.0 pounds, and have a wingspan that can reach up to 7.0 feet. Fish are the major food source for bald eagles although bald eagles also consume a variety of birds, mammals, and turtles when fish are not readily available. Eagle nests are generally found in close proximity to water (within 0.5 miles) where the eagle has a clear flight path to the water. They generally nest in the largest living tree with an open view of the surrounding land. Human disturbance may cause an eagle to abandon otherwise suitable habitat. Biological Conclusion: NO EFFECT Potential habitat for the bald eagle does not occur within or adjacent to the Site. The nearest open water which may serve as habitat for the bald eagle is 4.5 miles to the south in the Deep River. The Site may serve as a fly over corridor for the bald eagle; however, proposed project will have no effect on the bald eagle. Notropis mekistocholas (Cape Fear Shiner) Endangered The Cape Fear shiner is a small (to 2 inches), moderately stocky minnow. It is pale silvery yellow with a black band along the sides and the moderate-sized eyes are located on the sides of the head. This species is distinguished from all other Notropis by having a coiled alimentary tract that is visible through the wall of the belly. Plant material forms the primary part of the shiner's diet. Habitat elements include clean streams with gravel, cobble, and boulder substrates with pools, ' riffles, shallow runs and slackwater areas with large rock outcrops and side channels and pools with water of good quality with relatively low silt loads. Little is known about the Cape Fear shiner's life history. ' Biological Conclusion: NO EFFECT Site streams are characterized by stagnant flow over a sand and silt substrate. Disturbance from vegetation clearing and livestock hoof shear has eliminated Cape Fear Shiner habitat within, and adjacent to, the Site; therefore, this project will have no effect on the Cape Fear Shiner APPENDIX M Mr. Dale Suites UT Bear Creek Stream Restoration May 22, 2007 Page 3 Picoides borealis (red-cockaded woodpecker) Endangered The adult red-cockaded woodpecker (RCW) has black and white plumage; male RCWs have small red streaks on the sides of the nape. The RCW is identifiable by horizontal stripes of black and white on the back, white with streaked flanks on the breast and underside, and a large white cheek patch. The RCW uses open old growth stands of southern pines, particularly longleaf pine (Pines palzrstris), for foraging and nesting habitat. RCWs require forested stands that contain at least 50 percent pine, lack a thick understory, and are contiguous with other pine stands. These birds nest exclusively in trees greater than 60 years old that are contiguous with pine stands at least 30 years of age. The foraging range of the RCW is up to 500 acres and must be contiguous with suitable nesting sites. RCWs nest exclusively in living pine trees, generally those trees infected with red-heart disease. The cavities can be identified by a large incrustation of running sap surrounding the tree. The incrustation of sap is believed to be a defense mechanism of the RCW against possible predators. Biological Conclusion: NO EFFECT The Site is almost entirely composed of livestock pasture, with a narrow, disturbed, hardwood fringe adjacent to Site streams and contains no open stands of pine suitable for red-cockaded woodpecker foraging (30 years or older) or roosting/nesting (60 years or older) habitat. Therefore, no habitat for red-cockaded woodpecker occurs within the Site and the proposed project will have no effect on red-cockaded woodpecker. Ptilimnium nodosum (Harperella) Endangered Harperella is a slender, annual herb which grows to 6 to 36 inches in height. The leaves are reduced to hollow, quill-like structures which are green, ribbed, and purplish-tinged near the base. Flowers occur as umbels consisting of five regular parts and are bisexual or unisexual, each umbel containing both perfect and male florets. Flowering begins in May in populations occurring in ponds, while riverine populations may flower much later, beginning in late June or July and continuing until frost. Harperella typically occurs in two habitat types: (1) rocky or gravel shoals and margins of clear, swift-flowing stream sections; and (2) edges of intermittent pineland ponds in the coastal plain. Harperella is known from 12 extant populations, rangewide. One population occurs in each of two North Carolina counties: Granville and Chatham. This plant is a relatively prolific annual, and large numbers may occur within each population, especially along rivers. This plant tolerates and may actually require a very specific and unusual water regime, which includes moderately intensive spring floods, which may reduce or eliminate competing vegetation. Harperella is readily eliminated from its habitat by alterations of the water regime which result from impoundments, water withdrawal, and drainage or deepening of ponds. Other factors such as siltation, pollution, and shoreline development also threaten Harperella populations. Biological Conclusion: NO EFFECT Site streams are characterized by stagnant flow over a sand and silt substrate. Disturbance from vegetation clearing and livestock hoof shear has eliminated Harperella habitat within, and adjacent to, the Site; therefore, this project will have no effect on Harperella APPENDIX M Mr. Dale Suiter UT Bear Creek Stream Restoration May 22, 2007 Page 4 Designated Critical Habitat The N.C. Wildlife Resources Commission has designated Critical Habitat for this species in Bear Creek in Chatham County, the Rocky River in Chatham County, the Deep River in Chatham and Lee Counties, Fork Creek in Randolph County, and the Deep River in Randolph and Moore Counties. Total numbers are unknown, but all populations appear to be small. No designated critical habitat occurs within the onsite reach of Bear Creek and the nearest reach of designated critical habitat is greater than 11 miles downstream from the Site.. We thank you in advance for your timely response concerning letter(s) of concurrence from your office for the MBTA, FWCA, and ESA. I would appreciate receiving such letter(s) for this project at your earliest convenience. Please feel free to contact us with any questions or concerns that you may have concerning the project. Sincerely, 1 Mr. W. Grant Lewis Axiom Environmental, Inc. Attachments: Figures 1 -4 cc: Mr. Kevin Williams, Project Manager APPENDIX M ~1 i ~~`~~ Axiom Environmental, Inc. ~~ 2126 Ro>1~land Portd Drive Willow Spring Raleigh, North Carolina 27592 919-215-1693 Axiom Environmental, Inc. May 24, 2007 Alan Walters United States Department of Agriculture Natural Resources Conservation Service 600 West Innes Street Salisbury, North Carolina 28144 Subject: UT Bear Creek Stream Restoration Project, Chatham County 07-006 Dear Mr. Walters, Please find attached the completed Form AD-1006 Farmland Conversion Impact Rating form. I appreciate your quick turn around with regards to completing the form. Please feel free to contact us with any questions or concerns that you may have concerning the project. Sincerely, Mr. W. Grant Lewis Axiom Environmental, Inc. Attachments: Completed Form AD-1006 cc: Mr. Kevin Williams, Project Manager APPENDIX M Chatham County North Carolina PROJECT AREA ~ _:.. _ ._. r- 2302 1176 902 ~. 1139 ~ ~ ~ ~~ ' ~' ~ ~ '~`' 902 ;, 1009 , . ~ ~` 2301 ~, 109 ,~ ~ ~_ ' 2300 ~~ PROJECT o iooo 2000 I ~ I I AREA FEET '' Vicinity Map I' ~ ~O~ S l~~I ~ ~ . ~ Restoration Ylan Bear Creek n n ~ KO ~ ASSOCIATES, P.C. Chatham County, North Carolina Consulting Engineers 10]1 SCHAUB DR., SUITE #202 RALEIGH, N. C. 27606 llate: ~~7 Figure: 1 (919) 851-6066 PROJECT ' ~ ~ . AREA A ~ l~l. ~ ` ..~ • 1 r {. /r Can .. - 4~G~ ~ ~~ ~-~ •~ ~!~ ~~`! ~ ,~~~, z~~~ ~ !1 •,F~i'I - ev ~ , I ~i - ~~~ l.. 1. {~ ~irT fY' O 2~0~ Yooo I ~ I ~ I ~ I ~ rrrT T Tom!\TA7T> 1009-~ -/ ~r=/~' F'-. ~:n• ~ :'~ + i 1. _ 23011, \~- - ~ I !11 • - - ~'i ~ r~ ' (~ _ ' 10 9 ~ ~ I .j~-~~- ~~ ~~ r- / - 1 l.~ ~~ '` 230 ~ ~. MM -, -' - J ',}; j. r. / Chatham County North Carolina Watershed ~-~-~ Project Area r~ 7 ~ KO ~' ASSOCIATES, P.C. Consulting Engineers 1011 SCIiAU6 DR., SUITE #202 RALEIGH, N. C. 27606 (919) 85/-6066 APPFNI» Watershed Topo Map Restoration Plans Bear Creek Chatham County, North Carolina Date: ~b3atl7 Figure: 2 LEGEND Symbol Name ~mbol Name ChA - Chewacla and Wehadkee GkE - Georgeville-Badin Complex CkC - Cid Silt Loam GoC - Goldston-Badin Complex CmB - Cid-Lignum Complex Nab Nanford-Badin Complex GaB - Georgeville Silt Loam NaC - Nadford-Badin Complex GaC - Georgeville Sflt Loam RvA - Riverview Silt Loam Ge62 - Georgeville Silty Clay Loam StB - State Sandy Loam GkD - Georgeville-Badin Complex - Project Area ~ 1000 2000 FEET r~ ~~,•c~sys~ei» ~ KO ~ ASSOCIATES, P.C. Consulting Engineers 1011 SCHAUB DR., 5919~85~6066RALEIGH~~.~~j¢Q~ Soil Survey Map Restoration Plans Bear Creek Chatham County, North Carolina llate: 4,3Qro7 I Figure: 3 ~E ~ \..~, ,, . 1 ~r ~ . - ~, ~ iti -~.t _ ~ ~~ - ~ i ~. ~ - ~ ! ~ 1 ~ ~ „''r ~ ~ ,,-~~43 --r-., - rr, H' C- -' 902 w' ~.~ ~ ~ ~«t ~ t.yj.c:l :. - ~ . ,. ~ ~ y _. ~,__ _: Cam ; ~ /~ . ~ .. ~ - ~~ ` ~ ` _ 1, ~' -` ~ r,. ~ ~ h , ~ .~ ) ..` ,' '' r J r ,, 1,.. ~ ' ~ .~` , ' ~ l ~ ' ~ ~ ` V P J. ~' t' ~-~ t% ~ , , - _ ~ ~ ~'~,.,~ 1139 ~~..-~ ~ i ~~ l ti ~. ~~'~'~ -~ ` ~ ~ ~ .~.' o ~ ~~ .. t , ,100b ~ - - _ ~ ~ \ 'a J~ ~ b ~ ' ~ ~ ~^t- ~_ -•LG~S a .~. ~,~ ~ ~ ~ ~ E 1.,,,/ i ~~ ~~~ t-~ ~ - ~ / ~ _ 1~ ~ ~ =t I PROJECT o iooo 2000 AREA I FEET H drolo ical Y g Features Map r BEAR CREEK 1' d'()~Y~ l x'11 ] Restoration Plan n Bear Creek ~ KO ~ ASSOCIATES, 1-.~i, ~-hatham County, North Carolina Consulting Engineers 1011 SCHAUB DR., SUITE #202 RALE/GH, h'. C. 27606 L~atC: ~~7 1'1~,Ure: 4 (919) 851-6066