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Site Location and Directions ...................................................................................... 1 2.0 PROJECT INFORMATION AND HISTORY ......................................................................... 2 2.1. Nature of Activity ...................................................................................................... 2 2.2. Purpose and Need .................................................................................................... 2 2.3. Permit History........................................................................................................... 2 2.4. Future Project Plans .................................................................................................. 3 3.0 SITE CHARACTERISTICS ................................................................................................ 3 3.1. Vegetation Cover ...................................................................................................... 3 3.2. Soils ......................................................................................................................... 3 3.3. Wetlands .................................................................................................................. 3 3.4. Surface Waters ......................................................................................................... 3 3.5. Open Water .............................................................................................................. 4 4.0 JUSRISDICTIONAL DETERMINATION.............................................................................. 4 4.1. Methodology............................................................................................................. 4 4.2. Survey Summary ...................................................................................................... 4 4.3. Jurisdictional Determination Verification Request ....................................................... 5 5.0 PROPOSED IMPACTS INVENTORY .................................................................................. 5 5.1. Impacts Summary .................................................................................................... 5 5.2. Wetland Impacts ...................................................................................................... 5 5.3. Stream Impacts ........................................................................................................ 6 5.4. Pond or Lake Construction ........................................................................................ 7 5.5. Buffer Impacts .......................................................................................................... 7 6.0 IMPACT JUSTIFICATION AND MITIGATION .................................................................... 7 6.1. Avoidance and Minimization ...................................................................................... 7 6.1 Essential Fish Habitat ............................................... Error! Bookmark not defined.9 6.2. Compensatory Mitigation ........................................................................................... 9 7.0 STORMWATER MANAGEMENT ...................................................................................... 10 8.0 SUPPLEMENTARY INFORMATION ................................................................................. 11 8.1. Endangered Species and Designated Critical Habitat ................................................ 11 8.2. Essential Fish Habitat .............................................................................................. 11 8.3. Historic or Prehistoric Cultural Resources ................................................................. 11 8.4. Flood Zone Designation .......................................................................................... 11 9.0 REFERENCES ............................................................................................................... 11 Tables Table 1: Summary of On-Site Soil Types ................................................................................. 3 Table 2: Summary of Proposed Impacts to Jurisdictional Waters of the U.S. ............................. 7 Table 3: Summary of Proposed Compensatory Mitigation ....................................................... 10 Appendices Appendix A ............................................. NCDOT Indirect and Cumulative Effects (ICE) Analysis Appendix B ........................................................................................................... Figures 1 - 5 Appendix C .......................................................................................... Agency Correspondence Appendix D ........................................ Wetland Data, Stream Assessment, & Approved JD Forms Appendix E...................................................................................................... Site Photographs Appendix F .. Plan and Profile Sheets SD-1 & 7 through 11, and Wetlands & Stream Impact Aerial Appendix G ............................................................ Erosion Control Plan Sheets ECP1 and ECP2 Appendix H ............................................................... Schweinitz’s Sunflower Assessment Report [This Page is Intentionally Blank] Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 1 of 11 1.0 PROJECT BACKGROUND The City of Charlotte (the City) has retained GAI Consultants (GAI) to prepare a U.S. Army Corps of Engineers (USACE) Individual Permit (IP) Application for the proposed Prosperity Ridge Road Enhancement Project (Project). On behalf of the City, GAI is submitting an IP Application and Supplement in accordance with Engineer Form 4345, Application of a Department of the Army Permit, format, and pursuant to Section 404 of the Clean Water Act. The proposed 0.2-mile project will complete two gaps in Prosperity Ridge Road between Prosperity Church Road and Ridge Road and make improvements to the intersection of Ridge Road and Prosperity Ridge Road. This connection is being proposed in accordance with the greater Prosperity Church Road Village Plan, which calls for the development of a mixed-use, pedestrian oriented, urban village. The proposed Project is a City administered project with Federal funds. Permitting is to be completed by CMSWS. Single and Complete Project The proposed Project terminates at Ridge Road and, based on previous meetings and correspondence with Liz Hair of USACE–Wilmington District Regulatory Permit Program, is considered single and complete (separate) from the I-485 Prosperity Church Road interchange. As such, the North Carolina Department of Transportation (NCDOT) I-485 Outer Loop Link of I- 77 to I-85 Project (R-2248E) permit will not require modification to include this specific project. Also, the NCDOT Indirect and Cumulative Effects (ICE) Analysis includes all the projects in the vicinity of the I-485 interchange rather than for each individual project. This document, Indirect Screening and Land Use Scenario Assessment Report, encompasses a large study area centered on the I-485 project from west NC 115 to I-85. This report addresses the proposed Prosperity Village Plan area both north and south of I-485 and references the area as “Probable Development Area 2 – Prosperity Church Road Interchange Area.” The I-485 interchange ICE Analysis is included in Appendix A for reference. 1.1. Site Location and Directions The Project is located approximately 0.3 miles east of the Prosperity Church Road and Ridge Road intersection (on Ridge Road) in Charlotte, Mecklenburg County, NC. The proposed Project will connect two unfinished road gaps in Prosperity Ridge Road between Prosperity Church Road and Ridge Road in the northeast quadrant of the Prosperity Village Subdivision. This is illustrated on Figure 2, Project Location, in Appendix B. Applicant Name: Charlotte-Mecklenburg Storm Water Services Applicant Contact: Isaac J. Hinson, PWS Mailing Address: 600 East Fourth Street, Charlotte, NC 28202 Phone Number of Owner/Applicant: 704-336-4495 Street Address of Project: Ridge Road, Charlotte, NC Waterway: Unnamed Tributaries (UTs) to Stoney Creek Basin: Upper Pee Dee (CU 03040105) City: Charlotte County: Mecklenburg Decimal Degree Coordinate Location of Project Site: N35.373302°, W80.779864° USGS Quadrangle Name: Derita, North Carolina, 1993 Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 2 of 11 From uptown Charlotte head north on I-77 to Exit 19A for NC-115 and turn right onto NC-115 N/Old Statesville Road. Turn right onto Eastfield Road and follow for three miles then turn right onto Prosperity Church Road. Turn left onto Ridge Road, then left onto Prosperity View Drive, take the second left to stay on Prosperity View Drive. Follow Prosperity View Drive and turn left onto Prosperity Ridge Road and arrive at project location. (See coordinate information above.) 2.0 PROJECT INFORMATION AND HISTORY 2.1. Nature of Activity The project will complete two gaps in Prosperity Ridge Road between Prosperity Church Road and Ridge Road and make improvements to the intersection of Ridge Road and Prosperity Ridge Road. Improvements to Prosperity Ridge Road will include travel lanes, bike lanes, curb and gutter, on street parking on one side of the road, planting strips and sidewalks. Improvements to Ridge Road include additional through lanes, left turn lanes, sidewalk, bike lanes, a major culvert structure, and installation of a traffic signal. Furthermore, the pipe system is being upgraded to meet the design level service for a thoroughfare (50-year design standard). Future land use conditions analysis indicates that the road and adjacent structures will likely flood during more frequent storm events (10-year and lower events), so the proposed pipe system has been designed to address future conditions as well. See Figure 2, Project Study Area, in Appendix B. 2.2. Purpose and Need The purpose of this project is to extend Prosperity Ridge Road to Ridge Road and create a new intersection. This project is part of the Transportation Action Plan (TAP) that was adopted by the Charlotte City Council in 2006 that will provide a policy framework to improve mobility and reduce vehicle-miles-of-travel. The TAP will enhance street, parking, bicycle, and pedestrian areas. This project will construct a section of the roadway that will serve as an integral part of the roadway system for the future I-485 interchange. The Prosperity Village plan calls for a dense grid of two-lane thoroughfares and a split-diamond interchange with I-485 rather than a conventional multilane road with a simple diamond interchange. The split-diamond concept requires that there be three parallel north-south minor thoroughfares across I-485 to distribute the traffic through the interchange. Prosperity Ridge Road is the easternmost of the three minor thoroughfares. Construction of this project will build part of thoroughfare that provides access to the I-485 eastbound on-ramp and westbound off-ramp. 2.3. Permit History Initially, a Nationwide Permit (NWP) 14 application was submitted to USACE and NCDENR on December 19, 2011 for the proposed Project. Following agency reviews, the Project was guided to complete an IP application. See USACE Action ID 2012-00058 and NCDENR DWQ# 12-0007 letters dated 1/17/2012 and 1/23/2012, respectively, for stated reasons in Appendix C Agency Correspondence. Since the original submittal, the project design has been modified to comply with City storm water engineering standards for 50- and 100-year storm events. This modification has resulted in an increase in stream impacts. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 3 of 11 2.4. Future Project Plans This Project is not a phased project. This TAP project is administered and permitted by the City of Charlotte, and is not tied to the NCDOT R-2248E permit. Additionally, there are presently no future plans for additional construction by the City. 3.0 SITE CHARACTERISTICS 3.1. Vegetation Cover The land cover for the approximate 2.0-acre Project study area is comprised of asphalt paved roadways, residential lots with maintained lawns, non-maintained open fields and woodland areas. Dominant vegetation within the project area consists of goldenrod (Solidago), sweetgum (Liquidambar styraciflua), kudzu (Pueraria montana), common blackberry (Rubus argutus), sericea lespedeza (Lespedeza cuneata) and little bluestem (Schizachyrium scoparium). 3.2. Soils The Soil Survey of Mecklenburg County (NRCS, 1980) identified four mapped soil types within the Project vicinity. See Figure 3, Soils Map in Appendix B. Table 1 lists the soil types present within the Project area. Table 1: On-Site Soil Types Map Unit Name Soil Series Name HeB Helena sandy loam, 2 to 8 percent slopes EnB Enon sandy loam, 2 to 8 percent slopes CeB2 Cecil sandy clay loam, 2 to 8 percent slopes, eroded MeB Mecklenburg fine sandy loam, 2 to 8 percent slopes The Enon, Cecil and Mecklenburg series are well drained and exhibit high permeability. The Helena series is moderately well drained with moderate permeability. The Helena series is listed as partially hydric in Mecklenburg County. 3.3. Wetlands Two wetlands were observed within the project study area. Wetlands were identified as WL1 and WL2. WL1 was classified as a Palustrine Emergent (PEM)/Palustrine Forested (PFO) wetland. WL2 was classified as a PEM wetland. WL1 and WL2 are further discussed in Section 5.2. 3.4. Surface Waters One jurisdictional stream was observed within the project study area and identified as Stream 1. On-Site jurisdictional waters of the U.S. are UTs to Ston ey Creek and are located within the Upper Pee Dee River basin (CU 03040105). Stoney Creek is classified as “Class C waters” by the North Carolina Division of Water Resources (NCDWR). Class C waters are freshwaters identified for aquatic life propagation/protection. A non-jurisdictional ditch was identified within the project study area at the time of field review and identified as Non-Jurisdictional Stream 2. Stream 1 and Stream 2 are discussed further is Section 5.3. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 4 of 11 3.5. Open Water Two detention ponds were identified within the project study area. One detention pond measured 0.15-acre and the other measured 0.03-acre. No lakes are within the vicinity of the Project site. See Figure 2, Project Study Area, in Appendix A. 4.0 JUSRISDICTIONAL DETERMINATION 4.1. Methodology On October 31, 2011, GAI surveyed and preliminarily classified on-site jurisdictional waters of the U.S. using the U.S. Army Corps of Engineers (USACE) - Routine On-Site Determination Method. This method is defined in the 1987 Corps of Engineers Wetlands Delineation Manual (USACE, 1987) and the Eastern Mountains and Piedmont Interim Regional Supplement. Wetland Determination Data Forms representative of WL1 and WL2 as well as representative non-jurisdictional upland areas are included in Appendix D. Two stream channels were identified during the field investigation (Streams 1 and 2). Jurisdictional waters of the U.S. were classified according to NCDWR and USACE guidance. Also, NCDWR Stream Classification Forms and USACE Stream Quality Assessment Worksheets for on-site streams are included in Appendix D. 4.2. Survey Summary The topography of the approximate 2.0 acre project site is shown on Figure 4, USGS Topo in Appendix B. The field survey identified one jurisdictional stream channel (Stream 1), one non- jurisdictional stream channel (Stream 2) and two jurisdictional wetlands within the project area as shown on Figure 5 in Appendix B. An Approved Jurisdictional Determination Form for these features is included in Appendix D. Stream 1, a UT to Stoney Creek, flows southeast through the Project area and crosses under Ridge Road (Figure 3). Stream 1 was classified as perennial relatively permanent waters (RPW) and exhibited a 3-4 foot wide ordinary high water mark (OHWM). Stream 1 exhibited a well defined bed and bank, moderate flow and sinuosity and substrate consisting of silt, sand, gravel and small cobble. Stream 1 rated 51 out of a possible 100 points on the USACE Stream Quality Assessment Form and scored 31 out of 60 possible points on the NCDWR Stream Classification Form (Appendix D). Photographs of Stream 1 are included in Appendix E as Photographs 1-3. Stream 2, also an UT to Stoney Creek, flows parallel to the south side of Ridge Road in a southwesterly direction until its confluence with Stream 1 (Figure 3). Stream 2 is a non- jurisdictional roadside swale located in maintained upland lawns. Stream 2 classified as a non- jurisdictional ditch through uplands and exhibited no sinuosity or groundwater flow. The substrate within Stream 2 consists primarily of silt and vegetation. Non-jurisdictional Stream 2 rated 26 out of a possible 100 points on the USACE Stream Quality Assessment Form and scored 10 out of 60 possible points on the NCDWR Stream Classification Form (Appendix D). A photograph of Stream 2 is enclosed included in Appendix E as Photograph 4. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 5 of 11 Wetland 1, designated as WL1, is classified as a Palustrine Emergent (PEM)/Palustrine Forested (PFO) wetland and is located north of Ridge Road, abutting Stream 1 (Photographs 5 and 6). WL 1 is approximately 0.23 acre in size. This wetland exhibited inundation, saturation to the surface, water stained leaves and drainage patterns. Dominant vegetation identified within WL1 included common rush (Juncus effusus), cattail (Typha latifolia), seedbox (Ludwigia alternafolia), hazel alder (Alnus serrulata), eastern cottonwood (Populus deltoides) and various sedges (Carex spp). Soils sampled within WL1 exhibited a low-chroma matrix (2.5Y 4/2) with redox concentrations in the matrix and pore linings (7.5YR 4/6). Soils sampled within WL1 met the criteria for the depleted matrix hydric soil indicator (F3). Wetland 2, designated WL2, is classified as a PEM wetland and is located south of Ridge Road, abutting Stream 1 (Photograph 7). WL2 is approximately 0.01 acre in size and is maintained by mowing. This wetland exhibited saturation to the surface, crayfish mounds, sediment deposits, water stained leaves and drainage patterns. Dominant vegetation identified within WL2 included watercress (Nasturtium officinale), fescue (Festuca sp.), polygonum (Polygonum sp.) and various sedges. Due to the vegetation maintenance within Wetland 2, certain species could not be identified beyond the genus level. Soils sampled within WL2 exhibited a low-chroma matrix (2.5Y 4/1) with redox concentrations in the matrix (7.5YR 4/6). Soils sampled within WL2 met the criteria for the depleted matrix hydric soil indicator (F3). 4.3. Jurisdictional Determination Verification Request On behalf of SWS, GAI is requesting written verification of the jurisdictional determination of the aquatic resources discussed above (Stream 1, Stream 2, WL1 and WL2). Details regarding construction and impacts to jurisdictional waters are discussed in Section 4.0, Proposed Impacts Inventory. See Approved Jurisdictional Determination Form in Appendix D. 5.0 PROPOSED IMPACTS INVENTORY 5.1. Impacts Summary Construction of this Project will result in unavoidable impacts to on-site jurisdictional waters of the U.S. The proposed Project will result in 372 369 LF of permanent impacts and 155 79 LF of temporary impacts to jurisdictional Stream 1, and 0.24 acre of permanent impacts to jurisdictional wetlands, WL1 and WL2. Stream 1 will be impacted by the replacement of existing culverts necessary for proper management of stormwater runoff from the final connector segment. The existing 36-inch, double 75-foot long reinforced concrete pipes (RCP) under Ridge Road will be removed and be replaced with three lengths (118 lf, 179 lf, and 36 lf) of 8-foot by 4-foot RCP culverts. Sections 5.2 through 5.5 describe potential impacts to jurisdictional aquatic resources within the Project boundaries. See details on select Project Plan and Profile Sheet SD-1, Wetlands and Stream Impact Aerial, and Sheets 7 though 11 in Appendix F. 5.2. Wetland Impacts Approximately 0.24 acre of wetlands (0.23 acre of WL1 and 0.01 acre of WL2) will potentially be impacted from construction of the proposed roadway Enhancement project. Construction of roadway side slopes will result in the permanent placement of fill within WL1 and WL2. Wetland impacts are depicted on Sheet SD-1 of SD-6 of the Storm Plan and Profile in Appendix F. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 6 of 11 5.3. Stream Impacts Under the proposed Project plans, a portion of Stream 1 will be relocated and directed into an upgraded and extended pipe system that will carry the flow under the proposed intersection of Prosperity Ridge Road and Ridge Road. Stream 1 currently flows through an existing 75 LF dual 36 inch RCP culvert under Ridge Road. The existing culvert will be replaced with an extended 8-foot by 4-foot RCP box culvert pipe system, totaling 333 LF, installed beneath the proposed connector segment of Prosperity Ridge Road and under the existing Ridge Road. The proposed 8’ wide single box culvert that will provide additional hydraulic capacity at lower stages than the dual 36” pipes and a 50-year event or greater level of service for roadway flooding. Approximately 344 292 LF of Stream 1 upstream of the pipe system will be relocated and/or filled to facilitate flow into the new pipe system. Approximately 85 LF of new channel will be constructed to match the new pipe inlet. This relocated portion of Stream 1, along with an additional 52 LF of channel to be enhanced in-place (temporary impact), will transition from the existing channel through a series of three boulder step structures over 85 LF, with channel improvements between the boulder step structures. These boulder step structures will be constructed to provide the necessary vertical transition and to adequately dissipate velocities before entering the proposed box culvert pipe system. Average rock size for the boulders used will be 2’x2’x1.5’, with the header rock being a minimum of 2’x1’x1’. Filter fabric will be installed from the middle of the header boulder and extend downward to the depth of the bottom footer boulder, and then upstream for a minimum of six feet. A mix of Class A and B rip rap will be used to fill the upstream side of each structure. The channel improvements will include lining the toe of the banks with Class I rip rap with filter fabric underneath and installing temporary erosion control matting and vegetation along the upper portion of the bank. Please note that the 10-year velocity exceeds the recommended permissible velocity and sheer stress limits from soil or synthetic matting, thereby requiring the use of rip rap toe stabilization. Downstream of Ridge Road, the proposed pipe system will be extended 39 feet beyond the existing culvert outlet to allow for the construction of a sidewalk. Below the proposed outlet, flows will discharge to a 38 linear foot stilling basin. The basin will be constructed of Class I rip- rap with filter fabric under the rip-rap. This stilling basin will also assist with water quality by slowing flow velocity and allowing sediment to settle out. From the stilling basin, an additional 27 LF of Stream 1 will be reshaped and the toe of the banks will be stabilized with rip rap before tying back into the original channel. The channel improvements will be the same as mentioned previously. See details on Sheet SD-1 of SD-6 of the Storm Plan and Profile and Wetlands and Stream Impact Aerial in Appendix F for impacts to Stream 1. Due to construction of a new sidewalk extension along the south side of Ridge Road, the approximate 100 LF of non-jurisdictional Stream 2 will be relocated in to an 18-inch diameter storm water piping system. Details for impacts to non-jurisdictional Stream 2 are shown on Sheet SD-1 of SD-6 of the Storm Plan and Profile in Appendix F. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 7 of 11 Impacts to Waters of the U.S. are summarized in Table 2 below. Table 2: Summary of Impacts to Jurisdictional Waters of the U.S. Jurisdictional Feature Plan Sheet (Location) Activity Impacts Permanent Temporary Stream 1 SD-1 Channel relocation and fill for new Prosperity Ridge Road segment and pipe system installation (upstream of Ridge Road) 344 292 LF 0 Stream 1 SD-1 (Sta. 124+00 – 124+60) Stream enhancement within existing channel to facilitate transition to relocated channel and pipe system (upstream of Ridge Road) 0 52 LF Stream 1 SD-1 (Sta. 119+85 – 120+23) Pipe system extension beyond existing culvert outlet (downstream of Ridge Road) 39 LF 0 Stream 1 SD-1 (Sta. 119+47 – 119+85) Rip rap stilling basin at pipe system outlet 38 LF 0 Stream 1 SD-1 (Sta. 119+20 – 119+47) Stream enhancements and bank stabilization downstream of stilling basin 0 27 LF Wetland 1 SD-1 Fill 0.23 Ac. 0 Wetland 2 SD-1 Fill 0.01 Ac. 0 Total Impacts for Streams 421 369 LF 79 LF Total Impacts for Wetlands 0.24 Ac. 0 5.4. Pond or Lake Construction Construction of the proposed Project will not affect the two detention ponds measuring approximately 0.15-acre and 0.03-acre, nor require pond or lake construction. 5.5. Buffer Impacts Stream 1 is subject to City of Charlotte Post-Construction Stormwater Ordinance. To comply with Section 18-143, Standards for the Central Catawba district, a minimum 30-foot vegetated buffer (including a ten-foot zone adjacent to the bank) will be implemented. Disturbed buffer areas will be revegetated and disturbance of the ten-foot zone adjacent to the stream bank will be stabilized using rip-rap. 6.0 IMPACT JUSTIFICATION AND MITIGATION 6.1. Avoidance and Minimization Impacts to jurisdictional waters of the U.S. within the Project boundaries have been reduced to the maximum extent practicable. The design allows for: (1) proper connection of Prosperity Ridge Road subdivision stub-out –to- Prosperity Ridge Road south and South Prosperity Ridge Road –to- Ridge Road; Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 8 of 11 (2) upgrade of existing storm drainage infrastructure to meet design standards for existing and future conditions; (3) minimization of impacts to adjacent properties and structures; and (4) tie-in with the proposed residential subdivision entrance on the south side of Ridge Road. Given these engineering and construction goals, several alternatives were evaluated. The main area of impacts to jurisdictional waters is upstream (north) of Ridge Road. At this location, impacts generally result from construction of the new segment of Prosperity Ridge Road that connects with Ridge Road. The location of this road segment is dictated by the existing Prosperity Ridge Road alignment, stub-out location, and proximity to adjacent structures and properties. There is no opportunity to adjust the footprint or fill limits of the road. Outside of the actual road footprint, the proposed storm drainage design and alignment will result in impacts to jurisdictional waters. This proposed storm drainage design was evaluated for avoidance and minimization opportunities. Alternative improvement analysis revealed multiple challenges, including: physical grade constraints of the roadways; proximity and elevation of existing buildings/structures; existing utilities within the roadway; and existing drainage system alignment and grade. Jurisdictional impacts upstream of the proposed Prosperity Ridge Road are due to the extension of the upgraded pipe system and the location of the inlet of the pipe system, which is shifted away from the existing alignment of Stream 1. This alignment necessitates relocation of the stream with enhancement of the relocated channel and existing channel immediately upstream of the relocated channel. The existing dual 36” RCPs will be replaced with an 8’ x 3’ RCBC at an average 0.50% slope. The proposed design, including extension and alignment, are necessary to:  provide additional hydraulic capacity at lower stages than the existing dual 36” pipes;  provide for a 50-year event or greater level of service for roadway flooding;  accommodate the road widening and provide adequate clear zone per design standards;  minimize flooding potential for adjacent structures and minimize impacts (abandonment) to the existing upstream channel and wooded areas; and  minimize extent of impacts upstream and downstream by raising the proposed culvert slightly: minimal cover between the proposed finished roadway grade and the top of the RCBC and the required minimal clearance between the bottom of the RCBC and the 16” water main and 8” sanitary sewer. (Note: Installation of a larger size culvert to provide a natural bottom, either buried 1’ or a bottomless arch culvert, is not possible without relocation of a 16” water main, additional sanitary sewer relocation, approximately 200’ of additional channel improvements upstream and downstream to tie-in, and a complete road closure of the thoroughfare for an extended duration.) A design alternative that included shifting the inlet to the west, and thereby line up better with the current stream channel alignment, was considered in an effort to minimize channel fill and relocation impacts. However, hydraulic and hydrologic analyses indicate that this alignment would increase flooding at the intersection and of adjacent building structure at 4902 Ridge Road. This adjacent structure is currently at the same elevation of the existing roadway but will be lower than the proposed roadway after construction. These flood concerns dictated that the inlet be relocated to its proposed location. Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 9 of 11 Improvements to the relocated and existing channel upstream of the proposed pipe system inlet are also intended to minimize impacts. Storm water is currently directed across the entire parcel at 6902 Ridge Road and to the existing channel and ultimately the road crossing. The proposed upstream channel improvements include:  re-grading the areas adjacent to the roadways to relocate the “low point” of the system from the northwest curb return to the headwall;  grading to establish a new channel alignment;  providing grade control structures within the new upstream channel segment to provide vertical transition and to minimize length of impacts to the existing channel and upstream wooded areas; and  incorporating channel section improvements with a rip rap toe to tie-in to the existing channel and to minimize scour and bank erosion. A vertical drop of over 3’ is needed to connect the existing channel into the proposed crossing. (Note: the 10-year velocity is approximately 4.6 fps and exceeds the recommended permissible velocity and sheer stress limits for soil or synthetic matting. A significant amount of overland runoff will be entering the channel from the west side and the potential for bank erosion at the new channel location and crossing inlet is higher resulting in the need for structural stabilization.) Potential adverse water quality impacts associated with construction stormwater runoff will be managed in accordance with NCDENR NPDES General Construction Stormwater Permit, NCG01000, and the SWS procedures. 6.2. Compensatory Mitigation Proposed permanent impacts total approximately 421 LF of jurisdictional stream channel and 0.24 acre of jurisdictional wetlands. Approximately 292 LF of stream bed will be relocated into a new 85 LF channel with a boulder step structure sequence on the intake side of the box culvert. The City proposes that this 85 LF channel segment provide on-site mitigation at a 1:1 ratio. Additional off-site mitigation is proposed at a 2:1 ratio. The City proposes to utilize the current balance of 318 stream mitigation credits in the Rocky watershed (Pee-Dee River Basin, HU 03040105) from the City’s Umbrella Stream and Mitigation Bank (Bank). The City proposes to complete the required stream mitigation by making an in-lieu fee payment to the North Carolina Ecosystem Enhancement Program (NCEEP) for 354 stream mitigation credits. To compensate for the 0.24 acre impacts to wetlands WL1 and WL2, the City is proposing to mitigate at a 2:1 ratio and purchase 0.50 wetland mitigation credits from the NCEEP. In a letter dated December 2, 2013, the NCEEP acknowledged that credits are available in the Yadkin (HUC 03040105) River Basin. Following USACE approval, the City will remit payment to the NCEEP for the credit purchase. The proposed compensatory mitigation measures are outlined in Table 3. Formatted: Highlight Formatted: Highlight Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 10 of 11 Table 3: Summary of Proposed Compensatory Mitigation Jurisdictional Feature Permanent Impacts Mitigation Measure Ratio Mitigation Provided Stream 1 421 LF On-site mitigation through construction of an 85 LF enhanced relocated channel 1:1 85 LF Purchase of 318 stream mitigation credits from the City’s Umbrella Stream and Mitigation Bank 2:1 159 LF In-lieu fee payment to the NCEEP for 354 stream mitigation credits 2:1 177 LF Total Stream Mitigation Provided 421 LF Wetlands 1 and 2 0.24 Ac. In-lieu fee payment to the NCEEP for 0.5 acre of riparian wetland credits 2:1 0.25 Ac. 7.0 STORMWATER MANAGEMENT The Project will result in approximately 2.0 acres of land disturbance. The estimated impervious surface is approximately 0.80-acre of asphaltic pavement for the proposed connecting segments. Since the total land disturbance is greater than 1.0 acres, no land disturbing activity will commence without an approved NCDENR Erosion and Sediment Control (E&SC) Plan. Upon receiving E&SC Plan approval, the project will be automatically covered under the state’s NPDES Stormwater General Permit NCG010000 for construction-related activities. The E&SC Plan and copy of General Permit NCG010000 will be retained on-site by the contractor. Additionally, the drainage structures and stream channel enhancements, tree protection areas, Surface Water Improvement and Management (SWIM) stream buffers and best management practices (BMPs) incorporated into the Project plans are designed to minimize adverse impact to streams water quality. Further, to minimize adverse impacts to nearby surface waters, BMPs to be implemented include silt fence, sediment traps, erosion control matting, and temporary seeding. Upon completion of construction, disturbed areas will be seeded and mulched per Plan specifications. Silt fencing and tree protection measures will remain in place until disturbed areas are satisfactorily re- vegetated to minimize erosion and sedimentation. See Appendix G, Sheets ECP1 and ECP2, for details on erosion control measures. Erosion and sediment controls will be inspected after each phase of the project and in accordance with the E&SC Plan and General Permit NCG010000 conditions. Formatted: Highlight Formatted: Highlight Formatted: Highlight Formatted: Highlight Charlotte Mecklenburg Storm Water Services Prosperity Ridge Road Enhancement Project USACE Individual (Standard) Permit Application Project #B110437.08 Page 11 of 11 8.0 SUPPLEMENTARY INFORMATION 8.1. Endangered Species and Designated Critical Habitat A letter was forwarded to the North Carolina Natural Heritage Program (NCNHP) on December 2, 2011 to determine the presence of any federally-listed, candidate endangered, threatened species or critical habitat located within the proposed Project area. A letter dated December 7, 2011 was received from NCNHP stating that no records of rare, significant natural communities, significant natural heritage areas, or conservation/managed areas are at the project site or within 0.7 miles surrounding the project site. Additionally, the probability for the occurrence of federally-listed, candidate endangered, threatened species or critical habitat is very low since the Project area is currently dominated by single-family homes having maintained lawns with minimal wooded areas. In a U.S. Fish and Wildlife Service (FWS) letter dated April 9, 2012, a survey for Schweinitz’s sunflower (Helianthus schweinitzii) was requested for the Project site. GAI performed a pedestrian survey within the FWS optimal survey window for Schweinitz’s sunflower on October 24, 2013. The approximate 1.50 acre study area centered on the project’s proposed 0.83 acre of non-forested land disturbance. Potential habitat (an approximate 0.20-acre area) for the Schweinitz’s sunflower is located at the terminus of the existing paved Prosperity Ridge Road “split” near an approximate 0.15-acre detention pond. The Schweinitz’s sunflower was not observed during the site investigation in the project study area. In fact no specimens of the genus Helianthus were found in the project area. The Schweinitz’s sunflower assessment report is provided in Appendix H for reference. 8.2. Essential Fish Habitat According to the National Oceanic and Atmospheric Administration (NOAA) National Marine Fish Service (NMFS), the Project area does not contain essential fish habitat. 8.3. Historic or Prehistoric Cultural Resources A letter was forwarded to the NC State Historic Preservation Office (SHPO) on December 2, 2011 to determine the presence of architectural, historic, or archaeological significant areas that would be affected by the Project. A letter dated December 15, 2011 was received from SHPO stating no historic resources would be affected by the Project. See agency correspondence in Appendix C. 8.4. Flood Zone Designation Review of Federal Emergency Management Agency (FEMA) GIS layer indicates that the Project area is not within nor does it contain a regulated floodplain. 9.0 REFERENCES USACE, Environmental Laboratory. "Corps of Engineers Wetlands Delineation Manual," Technical Report Y-87-1, US Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. North Carolina Division of Water Quality, 2003. Stream Classification Method. Version 4.11. U.S. Geological Survey, 1974. Hydrologic Unit Map, State of North Carolina. U.S. ARf1�Y CORPS OF E�IGINEERS APPLICi4TIOfV FOI� DEPARTMENi OF THE ARIVIY PERMIi ��� �`�PROVAL NO. 0110�0003 EXPIRE�: 28 FEBRUARY 2013 33 CFR 325. The proponent agency is C�CW-COefd. Public reporiing foi° this collection of infiormation is estimated to average 11 hours per response, incluciing the time for reviewing insiruc4ions, searching existing da4a sources, gathering ancl maintaining the data needed, and completing and reviewing fhe collecfion o� information. Send comments regarding this burden esfimate or any other aspeci of the collection of infoen�ation, including suggesiions fo�- reducinc� fihis burden, to Department of Defense, Washington I�eadquarters, �xecutive �ervices and Communications Directorate, Information flflanagementi Division and 4o the O�ce of I�anagemenY and �udgei, Papei�rvor6< Reduction Projecf (Oi90-0003). Respondenfis should be aware that notvui�hsfianding any other �rovision of law, no person shall be subject fo any penalty for failing fo comply with a collecYion of ini`ormation if it does not display a currently valid OPJIB control number. t�lease DO {�IOT REiURf� your forrn fio either ofi those addresse�. Completed applicafions must be submitfed to the District Engineer� having ju�isdiction over the locafion of the proposed activify. PRIVACY ACT STAiEMERI� Authorities: �ivers and Narbors Act, Section 10, 33 USC �03; Clean Wafer Act, Secfion 40�, 33 USC 1344�; Marine Protection, Research, and Sanc4uaries �ct, Section 103, 33 USC 1413; Fdegulatory Programs of fh� Corps of �ngineers; Final Rule 33 CFR 320-332. i'rincipal �'urpose: Information provided on this form will be used ii� evaluating the application foi° a perrr�if. Roufiine Uses: ihis informafiion may be shared with the Department of Jusfice and otheP iederal, sYate, and local gov�r�im�nt agencies, and the public and may be n�ade available as parf of a�ublic notice as required by Federal law. Submission of requesfied i�iformation is voluntary, ho�,vever, if information is nof provided the permif applicafion cannot be evaluated nor can a permifi be issued. One seY of original drawings or good reproducible copies which show 4he location and character of the proposed activity must be attached to this application (see sample c1��awings and/or insfructions} ancJ be subrnifiYed to the Dis4rict �ngineer having ju�isdictiori over the location of the proposed activiiy. An application fhat is not completed in full will be returned. (ITEMS 1 THRU 4 TO BE FILLED BY TIiE CORP�) 1. APP�ICATION NO. 2. FIELD OFFIC� CODE 3. DATE RECEIVED 4. DATE APPLICATION COIVIPLETE �erEn�� ���ow ro �� F����� �v aP�c���,�r��� 5. APPLICANi'S NAME 8. AUTHORIZED AGENi'S (�AM� AND TITLE (ac�ent is not �-equir-ed) First - Isaac Middle - Last - Hinson First - Middle � Lasf - Company - City of Charlott� E-mail Address -ihinson@charlottenc.gov 6. APPLICP,Ni'S ADDRESS: Address- 600 East 4th �treet Company � �-mail Address � 9. AGE�17'S ADDR��S: Address- City � Charlott� State � NC Zi� - 2�202 Country -US Cify - State - Zip - t 7. APPLICANT'S PHOIVE NOs. w/AREA CODE 10. /aGENTS PHONE NOs. w/AR�A COD� a. Residenee b. �usiness c. Fax a. Residence b. �usiness 704�336-4495 �04�353-04��3 STATEMEfVi O� AUiWOR1�,4TION c. Fax Counf�y - 11. I hereby authorize, to ac� in my behalf as my agenC in the processing o� this applicafion and to fur-nish, upon request, supplemental infiormation in suppor� of this permit application. SIGRI�ITURE OF APPLICAPJT DA I E �9�f��, ���/�TIO�I, AN� D�S�RI�TI�F� O� P{������° �� ��Tlifl°� 12. �ROJ�Ci NAME OR TITLE (see instPUCtions) Pi-ospei-ity Ridge lZoad Conneciion Projeci 13. fVAME OF WATERBODY, IF KNOWN (if applicable) 14. PROJECi STR��i ADDR�SS (if applicable) UT to Stoney Creelc Address 15. LOCATION OF PROJECT Latitude: �N 35.373141 Longitude: �W -80.77992 City - State- 16. OTHER LOCATION DESCRIPiIONS, IF KfVOWN (see instr��ctions) State iax Parcel ID Vaf7es Niunicipaliiy Charlott� Section - I ownship - Range - �ip- ENCa ��Rl�d ��4�, ��� 201 � PR�VIOUS �DITIOPVS AR� O�SOL�TE. -- - Page 1 of 3 �. DIRECTIOfVS TQ Tf°i� SITE rom uptown Charlotte head north on I�77 to Exit 19,4 fo�• NC�115 and turn right onto NC�115 N/Old �tat�sville Road. Turn r-ight onto astfield IZoad and follow for three miles then tuin right onto Prospei�ity Church IZoad. Turn l�ft onto Ridge Road, then left onto Prosperity iew Drive, take th� �econd left to stay on Prosperity tliew Dritre. Follow Pro�periiy �Ii�w Dnve and iurn l�ft onto 1'rosperity ltidge Road id ar�-ive at project location. �ection 1.1 of the atiached Supplem�nt 1 t3. Nature of Activity (Description or project, include all fearures) The project will complete two gaps in Prosperity Ridge Road between Prosperity Church Road and Ridge Road and malce improvements to the intersection of Ridge Road and Prosperity Ridge Road. Improvements to Prosperity Ridge Road will include travel lanes, bike lanes, curb and gutter, on street parlcing on one side of the road, planting strips and sidewallcs. Improvements to Ridge Road include additional through lanes, left turn lanes, side��alk, bike lanes, a major culvert structure, and installation of a h�affic signal. Furtheimore, the pipe system is being upgraded to meet the design level service for a thoroughfare (50-year design standard). Future land use conditions analysis indicates that the road and adjacent structures will lilcely flood during more frequent storm events (10-year and lower events), so the proposed pipe system has been designed to address future conditions as well. See Section 2.1 of the attached Supplement. 19. Projeci �'urpos� (���c�-ibe the reason or puPpo�� of fhe project, see insfruction�) The purpose of this project is to extend Prosperity Ridge Road to Ridge Road and create a new intersection. This project is part of the Transportation Action Plan (TAP) that was adopted by the Charlotte City Council in 2006 that will provide a policy frameworlc to improve mobility and t•educe vehicle-miles-of-travel. The TAP will enhance street, parlcing, bicycle, and pedestrian areas. Note that although this project will serve as an integral part of the roadway system for the future I-485 interchange, it is considered single and complete (separate) fi�om the I-485 Prosperity Church Road interchange based on previous meetings and correspondence with Liz Hair . As such, the North Carolina Depai-tment of Transportation (NCDOT) I-4�5 Outer Loop Linlc of I-77 to I-85 Project (R-2248E) permit will not require modification to include this specific project. Also, the NCDOT Indirect and Cuinulative Effects (ICE) Analysis includes all the projects in the vicinity of the I-485 interchange rather than for each individual project. See Sections l.0 and 2.2 of the attached Supplement. �A�� �N���)G��� ����:� @� ������� lJ6`.1�/�� �9�� C�'lFa u �G'3o�� �� u � �� �D��G�A���� 20. Reason(s) for Discharge The proposed 0.2 mile pi•oject t�ill romplete two gaps in PY•osperit� IZid�e Road between P�-os�etity IZidge lZoad and �idge I�oad and malce improve�nents io the inter-section of Ridge Road and Prosperity I�id�e Road. This connectior� is beifl� proposed in accoi�dance vvith th� greater P�°osperity Church Road �illa�ge Plan, which calls for th� development of a fnixed-use, �edest�-ian oriented, urban village. Th� proposed Project is a City administered project with Federal funds. Permitting is to be compl�ted by the City of Ch�.rlott�. See Section 5.0 of the attached �up�lement for Proposed Impacts Inventory. 21. Type(s) of Material Being Discharged and the �mount of Each Type in Cubic Yards: Type `�ype Type Amount in Cubic Yards Amount in Cubic Yards Amounti in Cubic Yards 22. 5urface Area in Acres of Wetlands or Other UVaters Filled (see instructions) Acres 0.24 acre of w�tland� or Linear Feet 421 linear feet of permanent impacts and 79 linear feet of temporaty impacts to Stream 1 23. Description of Avoidance, Minimization, and Compensafiion (see in�truc4ions) See 5ection 6.0, of the attached Suppl�ment, for a deta.iled description of all avoidance, minimization, and compensation activities. ENG FORM 4345, OCT 2012 Page 2 of 3 24. Is Any f'ortion of the Wor{< AI�-eady Complete? �Yes �No I� �'E�, DESCI�IB� �HE COMPL��"CD WORK 25. Addresses o7` �ldjoining Property Owners, L2SSeeS, EtC., WhoSe PiopeKy AdJoInS 4he W�4ePbOdy (if more than can be entered here, please attach a suppiemental list). a. �aaress� See attached Adjoining Property Owners List following this page. �, c�ty � �fa�e � z�� � ! b. Address- City - �fate � Zip � c. AddPess� Cifiy - Sfate � Zip - d. Address- City � Sfate - �ip - e. Address- City - Stafe - Zip � 26. LisY of Other Gertificates or Approvals/Denials received from ofher Federal, State, or Local Agencies for Work Described in This Application. AG�fVGY TYPE APPROVAL'` IDENTI�ICATION �,��� �pPLIED DATE APPf�OV�D DATE DENIED NUMBER NCDENR 401 Certifi�ation 12-OOOi 12/19/�011 1/23/�012 U�I�CE 404 �1W1' 14 2012-0005� 12/19/2011 1/li/2012 NC�HPO Section 106 %1HPA ER 11 �231 � 12/02/2011 12/15/2011 IVatu�al Het-itage �tat� Protected Speci� 12/02/2011 12/07/2011 �` Would include buY is not restricted to zoning, building, and flood plain permits 2i. Application is hereby made for permifi or permits to authorize the wor{c described in this application. I certify that this infarmation in this application is comple�e and accurate. I further certify that I possess the authorify to undertal<e the worlc described herein or am acting as the duly authorized agent of ihe applicant. � = i' _ -.� �� � � 12/06/2013 SIr.��IA I U�� ��� kF'r�IC.��w 1' DATE SIGNATURE OF AGEf�I�f DATE The Application must be signed by the person who desires to underfake the pPOposed activity (applicant) or i� may be signed by a duly authorized agent if the siatemenf in block 11 has been filled out and signed. 18 IJ.S.C. SecYion � 00� provide� fihat: Whoeve�, in any manner within fhe jurisdiction of any depa�tment or agency of the United States knov�ingly and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fcfitious or fraudulent statements or representations or makes or uses any false vvriting or document knowing same to contain any false, fictitious or fraudulent statements or entry, shall be fined not more than $10,000 or imprisoned not more than five years or both. ENG FORN1434�, OCT i01� {'age 3 of 3