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HomeMy WebLinkAboutSW3200701_07-Calculations (revised)_20200824 STORMWATER MANAGEMENT NARRATIVE AND CALCULATIONS Prescott Village - Phase 1 Waxhaw, NC Revised 7 April 2017 24 August 2020 Prepared For PNC HOLDING CO. 2, INC. 111 10TH AVENUE SOUTH NASHVILLE,TN 32703 703:, 40016 lilts itt‘ 2 Submitted By Dewberry Dewberry Engineers Inc. NCBELS F-0679 9300 Harris Corners Parkway, Suite 150 Charlotte, NC 28269 Stormwater Engineering Report TAB SECTION 1 Introduction Project Narrative • Pre-development Conditions • Post-development Conditions Site Specific Issues Modeling Results 2 Exhibit 1— Mapping • USGS Topographic Map • Location Map • USDA NRCS Soils Map • FEMA Map • Wetlands Map • Pre-development Map • Post-development Map 3 Exhibit 2— Modeling • CN Calculations • Tc Worksheet • Rainfall Report • Routed Hydrographs • Hydrograph Return Period Recap • Hydrograph Summary Reports • Hydrographs • Pond Details and Calculations • Pond Reports • Water Quality and Channel Protection Calculations and Volumes • Outfall Control Structure Buoyancy Calculations 4 Exhibit 3 —Sediment & Erosion Control Narrative 5 Exhibit 4— Maintenance Program '1r Dewberry Introduction This report addresses the stormwater management needs for Phase 1 of Prescot Village. This phase is a portion of the overall Prescot development which is a mixed-use development located in Waxhaw, North Carolina. The overall tract is generally bounded by Providence Road to the east; Twelve Mile Creek to the north; Pine Oak Road to the south; and Prescot Residential Subdivision to the west. An extension of Prescot Glen Parkway from the residential subdivision bisects the property and connects to Providence Road. Under Exhibit 1 — Mapping, a USGS Topographic Map and Location Map are provided depicting the area of interest. Phase 1 is located in the northeastern corner of the property, and it bounded by Twelve Mile Creek, Providence Road, and Prescot Glen Parkway. The property is zoned Highway Commercial (CU-C2). The upland area is an open field with wooded lowlands serving as the floodway for Twelve Mile Creek and connected wetlands. A collector road is proposed to subdivide the property for the development of up to six (6) commercial parcels, ranging from one (1.0) to three (3.0) acres in size. The general approach to stormwater management for Phase 1 is the utilization of a wet pond as a Low Impact Development (LID) technique to control both water quality and quantity. Water quality will be achieved by treating the first inch (1.0") of rainfall with a wet pond located near the northeast corner of the site. Storm drains and curb and gutter will be used to convey the site's runoff to the wet pond to be treated due to overland flow not being practical for the site's topography. Project Narrative Pre-development Conditions The site was originally wooded with some open agriculture (farming) area as evidenced by a 1998 aerial of the area. Up until 2007, approximately 80% of the site was well maintained agricultural land. Timber was harvested between early 2007 and late 2008 as development of the entire tract began. Development was delayed until 2015 due to the economic downturn. At that time development of an extension to Prescot Glen Parkway was initiated as well as improvements to Providence road to support traffic movements into and out of the site. The undeveloped areas that were cleared were established with erosion and sediment control best management practices (BMPs). Currently, the site is reasonably vegetated with grasses and volunteer tree saplings, with BMPs still in place. The stormwater for the area of interest may be defined by a single drainage basin consisting of approximately 10.9 acres. The Pre-development Map provided in Exhibit 1 generally depicts the area of interest and defines the drainage basin. The site generally slopes from the south to north. Based on a topographic survey of the area of interest, the area is self- Dewberry contained with no drainage coming from areas outside of the area of interest.The low-lying areas identified along the northern end of the site and an indentation on the southwest side of the site have been excluded from this study.The area to the north is a portion of the flood plain that serves Twelve Mile Creek. The area southwest corner of the site is a low- lying area with suspect wetlands according to the NWI (The NWI mapping for the area is included in Exhibit 1). Both of these areas are excluded from this study as no development is proposed within these areas and drainage within these areas are not being managed within the proposed developed areas. Post-development Conditions Prescot Village Phase 1 is a proposed highway commercial development. Planned commercial space for standalone businesses are proposed based on development overlays for the area according to the master plan for the Town of Waxhaw. This phase is currently divided into six (6) proposed parcels utilizing two (2) roads to subdivide the tract.The roads are to be developed according to standards set by the Town of Waxhaw, based on an Industrial Local Street cross-section which requires a 63-foot right-of-way, with two 13- foot travel lanes, curb & gutter, and sidewalks. The development of the tract will also include utilities for water, wastewater, and stormwater.An overall stormwater master plan is proposed to accommodate the additional stormwater runoff associated with development of the road rights-of-way and development of the individual commercial parcels. In developing runoff rates and volumes for the area of interest, development and stormwater regulations established by the Town of Waxhaw were employed. It was assumed that each commercial parcel would be allowed a maximum impervious area of 80% of the total area of the parcel. The master plan proposes to capture all the runoff associated with such development and route it through a regional collection and conveyance system to a wet pond for additional treatment and flow control.As each parcel is developed, the individual developer will be held to a maximum impervious area of 80% of the parcel area and will be responsible for on-site (individual parcel) collection and conveyance to the regional system. The Post-development Map provided in Exhibit 1 generally depicts the area of interest; identifying the six (6) proposed parcels, roadways, and regional pond and establishing the various drainage basins for each. Site Specific Issues The existing site is well drainage and is located in Zone X according to the Flood Insurance Rate Map (FIRM) as developed through the State of North Carolina and the Federal Emergency Management Agency (FEMA). Firm Panel 4474J, along with revisions based on a LOMR that became effective on 10 March 2016 is included in Exhibit 1 of this report. A review of the National Wetlands Inventory (NWI) mapping from the US Fish and Wildlife Service indicates some small isolated wetlands near the southwest corner of the site.These tlf Dewberry. small pockets of apparent wetlands are buffered by surrounding the wood and no stormwater drainage, pre- or post-, is designated to be routed to these areas. The NWI mapping is included in Exhibit 1. The soils for the area have been identified through the United States Department of Agriculture's (USDA) Natural Resources Conservation Service (NRCS) website. An area of interest (AOI) was approximated and a map of the predominate soils was generated. The soils for site consist of three (3) soil types common to the area. A general description of each soil series follows. A more detailed review of the soils are provided in Exhibit 1, as collected from the NRCS website. The predominate soil type for the AOI is Chewacla (ChA). Chewacla is a fine-loamy, mixed, active Fluvaquentic Dystrudepts, located in the Piedmont and Coastal river valleys that drain out of the Piedmont. It is somewhat poorly drained and subject to rare to frequent flooding events, with major vegetative uses being pasture, cropland, and some forest. Its Hydrologic Group is B/D. As the pre-development condition was cropland, the area was considered improved and a B classification was utilized in modeling. Chewacla accounts for approximately 69% of the AOI. The next major soil type identified within the A01 is Badin (BaC). Badin is a channery silt loam that formed in residuum weathered from fine-grained metasedimentary and metavolcanic rocks of the Carolina Slate Belt. It is a moderately deep, well drained, moderately permeable soil, with major vegetative uses for cropland, pasture, and forest. Its Hydrologic Group is a C. Badin accounts for approximately 29% of the AOI. The final soil type identified within the A01 is Tarrus (TbB2). Tarrus is a fine, kaolinitic, thermic Typic Kanhapludults that formed in residuum from argillite or other fine-grained metavolcanic rocks of the Carolina Slate Belt. They are generally deep and well drained with moderate permeability, with major vegetative uses being forest with some cultivated cropland. Its Hydrologic Group is a B. Tarrus accounts for approximately 2% of the AOI. Modeling Hydrologic and hydraulic analyses were employed to mathematically represent the pre- and post-development drainage conditions/systems. The purpose of the analysis in to estimate the response of the individual sub-basins and the collection and conveyance systems to various design rainfall events. This analysis allows for the identification of collection and conveyance system requirements to meet the demands of a given rainfall event. Dewberry. To accomplish this type of analysis, various types of computer modeling software have been developed.The computer model selected to perform the hydrologic analysis is the Hydraflow program. The StormCAD computer model was utilized to perform the hydraulic analysis of the system. The models may be exercised utilizing different storm events and rainfall distributions as well as user defined scenarios. In this evaluation, 1-, 2-, 10-, 25-, 50-, and 100-year storm events were analyzed. Results Hydrologic and hydraulic modeling was performed to confirm the ability of the proposed collection system to convey and store the flow from the desired rainfall events. Exercising the model for the 1-, 2-, 10-, 25-, 50-, and 100-year storm events provides evidence of the proposed system's capabilities to handle predicted runoff under various rainfall conditions. The general intent is to develop a stormwater collection and conveyance system to capture and convey a specific storm event based on criteria established by the governing authority. Utilizing the Simple Method Calculation, the design volume of the wet pond is 28,703 cf. The wet pond also provides control for the 10-year, 24-hour; 25-year, 24-hour; and 50-year, 24-hour storm events through a riser structure and emergency spillway. The areas being routed to the pond include 10.54 acres. A small section of Kemble Street drains to the entrance at Providence Road and is routed through that system. The low-lying areas are left undisturbed and bypass the pond. With the pre-development flow rates established, the wet pond was designed to reduce the post-development flow rates to less than or equal to the pre-development flow rates for the 10-year, 24-hour and 25-year, 24-hour storm events. The 50-year, 24-hour storm event was also modeled to ensure that there is at least 0.50' of freeboard from the top of the pond during the 50-yr storm. The crest of the spillway/control structure is at 511.74'. Based on the pond routing calculations, the 50-yr water surface elevation at the wet pond spillway will be at 511.65'. With an embankment elevation of 514.00',this yields 2.35' of freeboard which is greater than the 0.50' required per the design manual. Dewberry. Wet Pond Flow Summary: Storm Recurrence Predevelopment Flow Calculated Total Post Interval from Site Development Rate (Routed) 10-yr, 24-hr 13.88 cfs 2.59 cfs 25-yr, 24-hr 18.86 cfs 4.86 cfs Summary of WSEL: Type of Peak Control Element Control Elevation Flood Protection Q10 Wet Pond 511.21' Flood Protection Q25 Wet Pond 511.48' Flood Protection Q50 Wet Pond 511.65' Summary of Wet Pond Control Structure: Structure Type Size Elevation Orifice 2.5" 507.50' Orifice 8" 509.14' Rectangular Weir 4.00' 511.18' Riser 24' 511.74' Outfall Pipe 42" 502.96' 1/ Dewberry' o.--, __ -- MARVIN Y,`' tx j" -‘,._ )) j' 2' 1\ ?'' NC£VAL/ANT p,P110 _a V KING° C lie 4' r �11D'; _5____7//(,, - Lftl Al,,:( 1. 11- I- r- t 650 1�//J>llTIL_il L[���/��.�,'11�I_ 41;` • 3869 r V I/ t N it_ Aw,1 1 -v. 1 .� I ���' `� �j I o Z 6 �� I.GRAY-U RD , I. I.-- �NILL RD I 4411 gq, . ,,F.• ri. 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Po /.. frYlTa irI FIE re Q0- k(eniclgtibn pC 1301 tr--------- - r .." • 4` i t i Dr + t EIS ��nrberry SUBMITTALS SITE INFORMATION SHEET NO. �__ PROJECT: -_T_ -7 REV DATE BY PRESCOT VILLAGE Dewberry Engineers,Inc. — PHASE 1 LOCATION 9300 HARRIS CORNERS PKWV MAP SUITE 220 ADDRESS: E-2 Charlotte,NC 28269 Phone:704.509.9918 PROVIDENCE ROAD Fax:704.509.9937 _ NCBELS#F-0929 WAXHAW,NC PROJECT NO. 50083412 Soil Map—Union County, North Carolina 8 (Prescot Village-Phase 1) En En 522100 522140 522180 522220 522260 522300 522340 34°57'7"N 34°57'7"N `ve�ile.Gr 1 A .IJe .1'9 4, • r I..\ , r Oo . • ,.. \ '.V ' \ lI A ` r r Q CD 7 • 0 CD N ChA i ''1,'.t. r' �. . ,.. O ,1 )5.°1: :6'7 • • TbB2 ,- = - a 4 , X r'is._.. ' �000 Gaap iai 51,R ISM eaUt/i aQ I ftT �coaUa • 34°56'56"N • 34°56'56"N 522100 522140 522180 522220 522260 522300 522340 3 3 m toMap Scale:1:1,710 if printed on A portrait(8.5"x 11")sheet. Meters 8 N 0 25 50 100 150 : Feet MM50 100 200 300 ap projection:Web Mercator Corner coordinates:WGS84 Edge tics:UTM Zone 17N WGS84 U A Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 1 of 3 Soil Map—Union County, North Carolina (Prescot Village-Phase 1) MAP LEGEND MAP INFORMATION Area of Interest(AOI) g Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) Stony Spot 1:24,000. Soils a very Stony Spot Warning:Soil Map may not be valid at this scale. 0 Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the scale of mapping can cause low. Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil Other line placement.The maps do not show the small areas of p Soil Map Unit Points contrasting soils that could have been shown at a more detailed Special Line Features Special Point Features scale. WI Blowout Water Features Streams and Canals Please rely on the bar scale on each map sheet for map Borrow Pit measurements. Transportation Clay Spot Rails Source of Map: Natural Resources Conservation Service Closed Depression Web Soil Survey URL: ✓wr Interstate Highways Coordinate System: Web Mercator(EPSG:3857) • Gravel Pit US Routes w rap Maps from the Web Soil Survey are based on the Web Mercator Gravelly Spot Major Roads projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the ▪ Landfill Local Roads Albers equal-area conic projection,should be used if more it Lava Flow accurate calculations of distance or area are required. Background Marsh or swamp . Aerial Photography This product is generated from the USDA-NRCS certified data as of the version date(s)listed below. an4 Mine or Quarry Soil Survey Area: Union County, North Carolina co Miscellaneous Water Survey Area Data: Version 16,Sep 20,2016 Perennial Water Soil map units are labeled(as space allows)for map scales Rock Outcrop 1:50,000 or larger. • Saline Spot Date(s)aerial images were photographed: Feb 11,2011—Feb 13,2011 4 • Sandy Spot The orthophoto or other base map on which the soil lines were Severely Eroded Spot compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor Sinkhole shifting of map unit boundaries may be evident. Slide or Slip oa Sodic Spot USDA Natural Resources Web Soil Survey 2/16/2017 rora Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map—Union County, North Carolina Prescot Village-Phase 1 Map Unit Legend Union County,North Carolina(NC179) Map Unit Symbol Map Unit Name Acres in AOI I Percent of AOI BaC Badin channery silt loam,8 to 3.2 29.3% 15 percent slopes ChA Chewacla silt loam,0 to 2 7.4 68.8% percent slopes,frequently flooded TbB2 Tarrus gravelly silty clay loam, 0.2 1.9% 2 to 8 percent slopes, moderately eroded Totals for Area of Interest 10.8 100.0% USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 3 of 3 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 Engineering Properties This table gives the engineering classifications and the range of engineering properties for the layers of each soil in the survey area. Hydrologic soil group is a group of soils having similar runoff potential under similar storm and cover conditions. The criteria for determining Hydrologic soil group is found in the National Engineering Handbook, Chapter 7 issued May 2007(http://directives.sc.egov.usda.gov/OpenNonWebContent.aspx? content=17757.wba). Listing HSGs by soil map unit component and not by soil series is a new concept for the engineers. Past engineering references contained lists of HSGs by soil series. Soil series are continually being defined and redefined, and the list of soil series names changes so frequently as to make the task of maintaining a single national list virtually impossible. Therefore, the criteria is now used to calculate the HSG using the component soil properties and no such national series lists will be maintained. All such references are obsolete and their use should be discontinued. Soil properties that influence runoff potential are those that influence the minimum rate of infiltration for a bare soil after prolonged wetting and when not frozen. These properties are depth to a seasonal high water table, saturated hydraulic conductivity after prolonged wetting, and depth to a layer with a very slow water transmission rate. Changes in soil properties caused by land management or climate changes also cause the hydrologic soil group to change. The influence of ground cover is treated independently. There are four hydrologic soil groups, A, B, C, and D, and three dual groups, A/D, B/D, and C/D. In the dual groups, the first letter is for drained areas and the second letter is for undrained areas. The four hydrologic soil groups are described in the following paragraphs: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. Depth to the upper and lower boundaries of each layer is indicated. USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 1 of 6 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 Texture is given in the standard terms used by the U.S. Department of Agriculture. These terms are defined according to percentages of sand, silt, and clay in the fraction of the soil that is less than 2 millimeters in diameter. "Loam," for example, is soil that is 7 to 27 percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content of particles coarser than sand is 15 percent or more, an appropriate modifier is added, for example, "gravelly." Classification of the soils is determined according to the Unified soil classification system (ASTM, 2005) and the system adopted by the American Association of State Highway and Transportation Officials (AASHTO, 2004). The Unified system classifies soils according to properties that affect their use as construction material. Soils are classified according to particle-size distribution of the fraction less than 3 inches in diameter and according to plasticity index, liquid limit, and organic matter content. Sandy and gravelly soils are identified as GW, GP, GM, GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and OH; and highly organic soils as PT. Soils exhibiting engineering properties of two groups can have a dual classification, for example, CL-ML. The AASHTO system classifies soils according to those properties that affect roadway construction and maintenance. In this system, the fraction of a mineral soil that is less than 3 inches in diameter is classified in one of seven groups from A-1 through A-7 on the basis of particle-size distribution, liquid limit, and plasticity index. Soils in group A-1 are coarse grained and low in content of fines (silt and clay). At the other extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group A-8 on the basis of visual inspection. If laboratory data are available, the A-1, A-2, and A-7 groups are further classified as A-1-a, A-1-b, A-2-4, A-2-5, A-2-6, A-2-7, A-7-5, or A-7-6. As an additional refinement, the suitability of a soil as subgrade material can be indicated by a group index number. Group index numbers range from 0 for the best subgrade material to 20 or higher for the poorest. Percentage of rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter are indicated as a percentage of the total soil on a dry-weight basis. The percentages are estimates determined mainly by converting volume percentage in the field to weight percentage. Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Percentage (of soil particles)passing designated sieves is the percentage of the soil fraction less than 3 inches in diameter based on an ovendry weight. The sieves, numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00, 0.420, and 0.074 millimeters, respectively. Estimates are based on laboratory tests of soils sampled in the survey area and in nearby areas and on estimates made in the field. Three values are provided to identify the expected Low(L), Representative Value (R), and High (H). Liquid limit and plasticity index(Atterberg limits) indicate the plasticity characteristics of a soil. The estimates are based on test data from the survey area or from nearby areas and on field examination. Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). References: American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 2 of 6 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 3 of 6 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 Report—Engineering Properties Absence of an entry indicates that the data were not estimated. The asterisk'*' denotes the representative texture; other possible textures follow the dash. The criteria for determining the hydrologic soil group for individual soil components is found in the National Engineering Handbook, Chapter 7 issued May 2007(http://directives.sc.egov.usda.gov/ OpenNonWebContent.aspx?content=17757.wba). Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Engineering Properties—Union County,North Carolina Map unit symbol and Pct.of Hydrolo Depth USDA texture Classification Pct Fragments Percentage passing sieve number— Liquid Plasticit soil name map gic limit y index unit group Unified AASHTO >10 3-10 4 10 40 200 inches inches In L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H BaC—Badin channery silt loam,8 to 15 percent slopes Badin 85 C 0-6 Channery silt loam ML,GM, A-2-4, 0-1-1 0-4-7 69-82-1 32-60-1 27-57-1 22-47- 25-38 4-12-20 SC-SM, A-4,A-6 00 00 00 86 -50 SM 6-35 Silty clay,silty clay CH,CL, A-7-6 0-0-0 0-3-4 81-90-1 62-79-1 55-78-1 52-75-1 45-55 15-25-3 loam,channery ML 00 00 00 00 -65 5 silty clay loam 35-43 Weathered bedrock — — — — — — — — — — 43-80 Unweathered — — — — — — — — — — bedrock USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 4 of 6 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 Engineering Properties—Union County,North Carolina Map unit symbol and Pct.of Hydrolo Depth USDA texture Classification Pct Fragments Percentage passing sieve number— Liquid Plasticit soil name map gic T limit y index unit group Unified AASHTO >10 3-10 4 10 40 200 inches inches In L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H ChA—Chewacla silt loam,0 to 2 percent slopes,frequently flooded Chewacla 87 B/D 0-4 Loam,silt loam CL, CL- A-4,A-6, 0-0-0 0-0-0 98-98-1 93-95-1 77-90-1 65-78- 25-37 4-12-20 ML,ML A-7-6 00 00 00 95 -49 4-26 Silty clay loam,silt CL,ML A-4,A-6, 0-0-0 0-0-0 96-98-1 91-94-1 79-94-1 70-84- 30-40 4-13-22 loam,clay loam A-7-6 00 00 00 94 -49 26-38 Loam,sandy clay SC-SM, A-4,A-6, 0-0-0 0-0-0 96-98-1 91-95-1 80-84-1 58-61- 20-33 2-9-15 loam,sandy loam SM,ML A-7-6 00 00 00 80 -45 38-60 Clay loam,silt loam, CH,CL, A-4,A-6, 0-0-0 0-0-0 87-93-1 65-81-1 52-74- 39-58- 22-42 4-16-28 silty clay loam MH,ML A-7-6, 00 00 96 77 -61 A-7-5 60-80 Loam,sandy loam, SM,SC- A-2-4, 0-0-0 0-0-0 76-96-1 75-96-1 54-86-1 36-63- 10-25 NP-9 fine sandy loam, SM, A-6, 00 00 00 84 -45 -18 sandy clay loam SC, CL, A-7-6, ML A-4 TbB2—Tarrus gravelly silty clay loam,2 to 8 percent slopes, moderately eroded Tarrus, moderately 85 B 0-6 Gravelly silty clay CH,CL, A-7-6 0-0-0 0-4-8 65-72- 44-61- 41-61- 39-58- 41-53 20-30-4 eroded loam,channery GC,SC 82 82 82 82 -65 0 silty clay loam 6-45 Silty clay loam,silty GC,GM, A-7-5 0-0-0 0-4-8 84-91-1 64-81-1 54-80-1 52-78-1 41-55 20-30-4 clay,gravelly clay MH,SM 00 00 00 00 -85 5 45-80 Weathered bedrock — — — — — — — — — — USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 5 of 6 Engineering Properties---Union County,North Carolina Prescot Village-Phase 1 Data Source Information Soil Survey Area: Union County, North Carolina Survey Area Data: Version 16, Sep 20, 2016 USDA Natural Resources Web Soil Survey 2/16/2017 Conservation Service National Cooperative Soil Survey Page 6 of 6 STATE OF NORTH CAROLINA FIRM PANEL LOCATOR DIAGRAM LEGEND 5 1 floc FEET : ,I: :1 e •56° ._O N S PANEL 44 '�vue tiz 1 17T 500 FEET ' 52 : u 1 480 WO FEET F , . . + SPECIAL FLOOD HAZARD AREAS (SFHAS) SU EJECT TO * 45O ODO FEET V �• e. 450 OOa FEET , . . . - ABARRIIS ` ' 'I - a r�4 ems+ - •-- r •r • 1 �+_ - •{• ••, .•7 w ... rd INUNDATION �Y THE 1° ANNUAL CHANCE FLOOD �"• ,• � :• '�� .' ..�• . ' .z The1% altinual clka1i a f100� [100 year f100d]r also krl0 8s#Itie Lase noon, is the fed tAelk N. ' • ,.._____(-• .-__ k- �~ ZONE X . I - � y :'a�i. `; ;- *• ti r�: : yi: ''r, ,' • h 1% h f In �I I r In I The F .. - i. •T n.1 ...Ir.. I •� .-� i++_ �h�k+-ti�•� i ,1'! _ _ - a ry t i �" d5 d C d« 0 � d 0 d�'�' J' a flood, Areas dry S1 f• �' Area is the area subject to floats by the 1% annual chance flood: ail Special Flaad ' I '114717 �, I ltll l',� y--: '•M2. , -;'r- - fl I • .-�� L `_ F ,-,. *' �2�F :. .. . r r r 1 1 r II r HBrard i�ludealeS Iq 14E �H A 1 # A99 y! 81k7E: Toe Ease Rood EleStrl is the / R 3TA NLY 1 387�}L4'� Ilk-% -1; • A - I ..' .' �_-L- I ...... .. ,r ..... ,r .J a ti''�k1er SOr>�#' 'dGC� Of k17 1% annual hd flood. MECKLENBURG i I' I It l71'f'l''I'il ILd ll k ilk -_ "' t _ . t7.: :^ ' �'�.•,,,�w„r+. - _ ' ' r .•` ZONE I + �:. ZONE A ria Base flood Elevation determined: f '4 .. ._� 7 L I .y L' "• s_ L.. ! : ' ,£� 2 _ •ram 'e/ j. j '• } -r 'h 7 ,. : ZONE AE Base Flood EIEvat,ons determined. ,- ' Y .. ' 1\4 '•'• r _ ZONE A E ' S }_ _� . ZONE AH Flood depths of 1 to 3 Feet (usually aromas of ponding); Base Flood Eletiatrdns . .2:0.:lie ..' ., 1 I L 1 •'*' �.. 'I'_ - 'I I� ZONE N. i f I '1 7 M1 ZONE AO Flood depths of I to 3 feet (os1 y+ sheet lbw on s+l)Ir1g kerra+1); 1age w ,--Y __ 6..........T } depths de4em7irw_d_ For areas of alluvial fan flooding, velocities also i { rr + - • - -r , I-114 o l•I' 1 I ' 1 I•,:;I'- de[errrYrrYed: ! __ �' .+ ';: 'i %. f�'A • ZONE E A E F 1 }} k: f7 ; } :1.I• ti tic --.k‘I •r ZONE AR 5p° aI Flood Haza Area lumen). prct 'C J from the IL% annual thancR . r 1 • f y flood a flood control stem that was subse uend decertified_ Zone loft �' UNIOii r. \t_ L '•`. ifldiC�keS that the former flood cur tr l System IS teir1' reSk.Ored t0 rrOride • :• r / �' pr# 1 fr�rn the1%annual dance or greater flood. \ r 3 :. I U ll )1)., 11Y41'-�lk• .11 . ' l • - v 5 1 2 ',usu..' �.�- ,' 1 •I � k' t • x ^ � ENE AN Areas to be prer4ed from 1°h annual chance flood by a Federal fiend ® f I I I[16 - fC� �L'Eti�; x;L ZONE ?4 �• �P. • _ l : 1 _ll 'L't t51 � � Iti k' f';: 75__ 11 +'' { _ I I]rheCtiorl 5yskem w1d�r c�Or1s#ructiorl; r10 FioCrd Elra�tiorls 4frrriifY$tl. , • .; _ �� : r1. I � Y L ' , • - ZONE 1fE Coastal Moil wile with ac ' haia:4 (wave ac#Wn ;. ncoi Elevations Y - • r + 2 f 1 1 ' • f' 'r _---r. ' -k�.ti_ � l'•,' e• determined. • 2 l:i. .' y r:r} 1 �_ ," k L k • a " •M1� , . . FLOODINAY AREAS pi zoNE AE ' _Y -' -'I TY + ' *`' +k . 1 4 , , , , F f Time tlooiway is the channel of a stream plus any adjacent Flood plain areas that musk be ktot .....\ 7F k Al{l kA 1�'; L, __ f I ry• free Of enLrOdthn nt 50 that the 1% annual chance flood can be carried without sub5karlGdl I a'S'='i { tic - k increases in flood heights_ . .. F y k • r•-- - • -- - . ,. _ :: _ _ + _ _ - :-- - - __ - L -" \ •# A ',-,-,- OTHER FLOOD AREAS �_ r - w , - _ , _ • , \ � � :"LIB^r IJ f m' s Fw_r'-1' C. ' ZONE X rears o+ 0:Z°o ann11aI glance rloo0' drl6dri cf 1° annual charm 11o01 with `'' ,r. :.k '4* \\:. �r • r, NE i ,, CL� r. Ir ,Fti.S,. averagedepthsofIssthan1 foot orwith dralrlagearE�as assthan1 square `� Z [own t \ '•i1\d1cil I• --- _ 1_ t . . 5-L �� r 1! I L mile-and areas protected bp' levees ham lob annual Charms flood: DATUM INFORMATION vnvu �':'0.' ... �: ' s"_ } 'Y .. r.}�C . . ' . '� _-- , ., OTHER ARE, �. Y 447 50D FEET ,ir'�•r' • x "ti w r ., • = '�' • ZONE X Press GICEErrnined to be Ovtsrde the 0.2%annual&arum kodRlan: The K C #I�rrse In Ih1 re cal rpn Or 1h1 map 1f'1 North' Carolina ri. - � • '.'Y = ; ~' ;k ss J p p }J .1 Z�?F,1 E �{ I L:5 5 1'I 171 .l\I l t,ti': BONED areas m whkh mad hazards are undeterrrmrted,tart poe5ltie_ Plane (F IPSZC}N E 3203). The horizontal dlatimn was the North American Dalirn of ;?�J 4-1.-.; _ __ 11 1 83. RSB] ellipsoid Differences in datum. ellipsoid. profec'ion, or Universal + L 1/ �rt. 4Y� �� COASTAL BARRIER RESOURCES SYSTEM (CURS) AREAS Transverse Mercallor zones used in the production cf FIRMS for a�jacenk •• _ 1/4\ • - ILrisdicliens may result 1n slight positional differences in map features across , 't� 2.�{ --...____< L • •I4ris�didio cal boundaries. These differences do no[ affect the accuracy of this • h' / .3, . :. -H \ OTHERWISE PROTECTED AREAS (CPAs) FIRM All coordinates an this map are h . Survey Feet:whore 4` 41 �_ . , '. ti ' L. __--, ti 1 U.S. Surrey Foot= 120013937 Meters. :.... 41 i ° -' 1 �_ �.- - -- -• c . . . .. CURS Fads and ❑ S ale normally Ioca4BQ wlktlln of adjacent to Special Flood Natal Areas. ' i'; n 1+ N, • �,r Y x / F • 1%annual chance marlan baurtdark FI I e evailonS cc' Ih1 map .are refererced to the Nor'h Arnerlcar1 Ved I = i'' ,. . �. ' : • •� •x" . •: i �t I Datum of 19BI3 NAVD 138}, These flood elevations must be compered to structure •w � `'' �.; y r.. H�' * � .+ � s 0.2 o-annual chance fkoticIain hound3ry gr0 n0 ale' IrOnS reFerer'Ced fp the some vertical datum Ail Zverage Ifgel rr _ `x` ' - _ r T x 1 - Floa7n'a1r hwnneryr between NAVD 88 and the National Geodetic Venice! Datum of fees (N VD 20 -k 11 I t�'1 f t m 11111 k • ;: '_' •• ZONE X•• ' i'cne D t' undary+ h been CCenpuled For a North CirOIIr1J county ThIs cI`Fsel was Ilien vplled 5 +.. ye n , ::. Y_. • _ •- 1 , • • III11.:1?" '.tr";I'.t',j 11't',I •..„.. � .,., `+, ••• ■• CBR5anclOF'Atwndary+ 10 the NCVD 29 flood elevations 1ha1 were not revised during the creation of this I • • ,'. °•,.. �` '"�:, ' • k ` ' ? ' •• • :1 '• ....(1 ': ' 'x r.• y + Bounds atria' Special Flotel Hatbrd Ar�ee tri tird 6tueda skake'dir3a Format FIRM The OffSate ice each 'mum), shown cc) this FIRM pane' are Said • I • ;• , t}-.7 ,-• 1 rr ^4 rd shown in thevertical datum offs l cable below. YdF19re a county bounder} antiX I =fix` , _r r M1 „kb. (D '',= . ' '' II " . ;� dr�rd�ng Special Fk>,ad Hazard per vt d+ errt ease Fib 1I t ins source with Unr +� e4 fdGVD fI�OO Ie�'�k1Ons are Op1nO1pen1. 8n I -. _{9 -.° : .ti4 ' • :'Y=`• i' • • v - --- -- Elevatians red depths or riaad r+dcrttti ii 1 - • --- ZONE AE ,ty e69•: individual offset his been calculated and applied during the rriAatibrl Of this :x . �►'. I _ - --rti 513 r~- Base FIB EI k4n lino Find unl1,1r.;a tqn in reds kaIe-vodd FOrrnak FIRM S ECII�r7 1 or tine Cgrrlpenyrlg Fir pp Incur r 1 - E1ase Fkbd E1 on 7,vkJE where uniform tthhln wore: elewaklon '1 Study report 10 Cb1ah fur1I 'r information on the conversion Of elievadions " -- (EL 7) between NAVD 65 a' r1GVE J. TO Obtain current 'elevation paaOrIpt11rn anpror - • . . \ \ 4 - • V. rl ::' r I h. ; F r r r:: v r r ::.r�� i F4eferencee La the North American 4+e Beal DaLu fl of]9e6 tot rlion hforinlativn for bench marks shown On Lhis map. pleaSia contact the `^� I , 1 F',L`}" F['�' 'r:`'.F I'k'F I I = :: F F K }� 1 .:„.., Ncrlh Carolina Geodetic Survey et the address shown below. You may aFso / 1 I se�t1 n trle c r+llact 1b Inforf alien Services 6rer`i'th Of the Narlienal Geodetic Survey at (301) �: x=- •`' • ' �'yx ZC]N E E -- _ 713. 2, cc wish its wehsiLe al htip:rl4v5wrw.ngs.rtaee galr x =_ ___ r 3a Tr1 Imo#ling • Nerih Carolina eodallc Survey County Average Venice! Return Offset Table 7". - •ii:37-•._. - ,'I F i '� -. I C 1aph1c caardmates re renoed t the Marth f'ir ncan Datum dt :,: ' .. _ sr ur ,ss•zr 15�3tf B3}1 1 VVe..4 Jos Skreel Ccunly k+e�se. tat,.m L'�x :n; ' ' ��_ --- y ZOC+IF if .Raleigh. NC 27801 LA`.Cm}I -a [) 1 ~- •P;f k-r 1 - . • 1 4.275u L' 1I/Or ter UnrLersal l'rensuense Mercator grid tr:ks,zone 17 rt {91 B) 73 •39 �. �" ' ,.f� �I r], I-. 1s{ y �. ° ' 250D-rcol. il+.IIuSs: N:41h CArGIril StMe FI OXindin* ten hitp:�Aw'.5+w.no�ls.state.nc.us / I {:. '• ' 5' ' rM15' :`' '' I °. J 1 37 00 FEET (F[I_ +1E 3200,Stake Plane HAD 83 feet) .1 ZONE X ., �53� �.- ,I �'' Al J. I ti}' 1. � W �MS�1 MatharoFrlare0deki[ Survey bench mark (for nmore rtlfcrlTlattan Lxa -I� •u ua ua r•KiliU e+ ;Cl.21.1 I I • - `li f . i; 1 I'I l I I 4. '.I I I I' I - �L {,■�r. +� " _ +�� /�`+C C N9ki0ndl G[1 I SurveyI I�h ntiprk [ice rnp itlf tl .ice '- - ~ 1 1:1 ZON L A WL + Qlr/IEi510 I I I'It1l Inn•.I.IkL t'I I'L.I.` xY . el All SIr+$Om hskd 1n the Rood Hazard Data Table bel werestudied ' detailed r ti '---_� F• - t t NGCrSE GP5 2-5[m Velkit3l Cotl[r�l M31kR or Cotlkr�Cltr E5L3hli5hed methods using field survey. Other flood hazard dais shown on this map may r_�. r ' / •m I I'•' I ' 1 ?� - r�.� I I r g g p/ r FM1mf� nCh narks S+ creme Irl1I c1n.pon wart h$ve f} r1 d rru 4 Sr eIIP 1 ppa ill armaIf I or Inn Ilep detailed f 1521�nr1rr c i \ I. 1 ZONE X I _ - -- y •' { htth'i,1.ww.nca5.sletsfIc.us) 'f.E.SI.• 9 -. F.F- r I--•.-.:L'• ?+ I analysis. More information on the flooding sources studied by these analyses is4.' - r -- •'{: n 1 ( r r M 1.5 R witty cCelle red In the F'ggd InSurar Sku#y few' vti-rl fII J • • . . ••:;r . . •• J - y 7.674 1 LL' 1 L_ I I • /f f k FLOOD HAZARD DATA TABLE (feet) ' ti , t- •T _ I --• • :; :--. • M1�, ' ~ • _ �r - s; Lef arlgrn defence From "t *� � I - :�'.' � h•�' c� • II The Cnidr of Srr•8am LO rM1 ---+, •:„. .,. .Hood drrGt11 1 x r 06S Stream Fixid (10D-yrtar) EncrOovhnunt ndpny - r 7 •_•'•- , �5 i -.. ,ti - I• r + �' + _/ I\ �' 1 L • SeL•tim SLtiIiin C64horgd cFs) Jebar-Surface Eierelian {LOOtiing OawrteirearrO ce -• _ ,_• 1' 1 •`�,� m. _ ^T- + (fad NAV D Ea} Thiel Fb tlw ay Width • ti I ,. ' }: ti , •E3LYTHE CREEK I~ y ZONE AE" �.• : k' " 004 3 }' 2,A93 510.2- 25 r loll _ I^ p~+ L l 1 ' L{i.p r I yyii: k t \ •_7 11 vJJJ •L a�1. `..� } -F :$f , • �L'L -_1/ '��_ 1• 012 1,1501 2: 510_ 14 1 ,� _ I • F OPT 2,1 2.463 ;}h 4_ d4 f 1 • _ • y, ] ( r {• • f I L EAST FORK TWELVEMILE CF .uti 1• 4 , '� / ti 1 1,2Bd1 OrL 510.2 60 501 r.1. lit _ .� 'y i + f s r' k + r k5' J�• " r 1'I ~~_ �� 1 1 • m :s'�,' []F ti17rA? HAW + �.._ .r--� ., ` + ?' ZONE Its:E 3, �.29 511J.4 4I • 1 }f� F , . -._ �+L.n.+1 `:rr:i.•• r+ ..� - I • _ , 1•,}'• f• -_ i 5 it �v••x f .1, 040 :3, 5.2 510.7 30 , _ ;J r1110l �,OtiJ hJTY• tr, gat ' _- f055 5,510.1 6.290 511.2 450 + 30 38fs8 ,' cr-'r - _ 2 -1::1+C135 6,5041 B,293 612.7 1130 r BO ."'•L• 5 ZONE }fL • I r , __ .. 1 + + +� • } 1 r�_. - ti _ I ZONE { f ' 1: .: . I . .073 7,3261 S.29D 613.7 150 f 3 [.�1y t tYnl 'c L1111 ; f _ I \--Tr; � � 'yeas',.•:079 7,0371 f3.290 51d.6 200 r 30 •+��;?..' 'l leiC�TI'�7i7rDL LI . 1'D , f % DIKI 8,9571 $,2 515.E 3D 1 i .. vil •.1• '•1..'Ili. .'.'n I _} �d _]' ii• r if•7. + 1 r 1 �- - r ', •k. _•s '' ":••', : r i. I 5 9,a1 U1 $. 51$: 1 1 .50 ' ,,,: 1" :::. �1 . . l \I • / ZONE X -."-- - +-- -. ,_. r'_ et. \ ..-4 ::::;:rs?-.. . d2 ADO FEET , 7 - ., --- _ r '. 101 1 O f1701 6.290 516.1 120 i' 125 ZONE X 'r •ri .• ... • /4.--iX:.14 ,_ -„ . : '�l 1 'let7. x•. rr• r * �+ T1rLf ELVEMILE CREEK 1 , + , \t -\ E 1 iE; r _� - •., f' j kk ,'Z 4 GRID NORTH 102 1 Q,� N.A. 506.b 7Q I-' {' k.. . } • .� + r l - MAR SCALE 1" = 5Ot7' (1 : 6,0110) r_ ZONE 1 1 - • ' • - �_ -� _ { k _ 120 12 NA. 50T.44 422 L % x - 5 I ; ,' . -+� F '; • .''` • " • 2so too Aso trig F • k•� r ' rS€E 142 14,1 NA FOB.3 ddCy 41�' �. ` -� -. �� r 1 1 METERe # • \-% 1 1•54 4 IN ,74F 1a2 15,1f10� NA 5�?B.2 =6� ZONE AE + • 5 5 + + �`�'�i +. ��ff` 1 # 1 15,820P NA. 81�.1 1.051 + I , • N. y� � '� d �I ZONE ' f r T1rLfELVEMILE CREEK TRIBUTARY 3 Yr� _ -I. - ZONE AF y � 1 1 - - OS 5 1.14 5 1 r 14 ZONE r •I� _lit ..f . ......, `. __ __� 1 le/H[Fli PANEL + T+ .,I 013 1, 1 1.194 5 14 r 14 • k`rug - o / ' �-- 'I \ .- • 019 1:93$ 1.194 506_B" 14 f 14 I i � l � Ly2f 2,F06' 1,0 508.Er 14 14 f:. - _ �� 1I '~. 2 . I -, �. 22 ___ • 1 r• fFIRM 3,$41' 1.001 512.3 14 14 • �, } Y }} �' i +� �k f 1 + 1 WEST FORK T�rrEL#EM I LE CREEK - � L _ I ,� 1 1,2551 .6.. 510"12 10 i' 3 5 .. + - t ::1 `� •`...' • FLOOD INSURANCE RATE MAP 022 2,17 1 .a 5 511) 1, 10 + 200 yw'erm'emde • +el • _ c. a, 5` I CAROLINA 1 �_`• - + NE x •I 1 I : % • I' " NORTH C+AROLI A ZONE AE _ � � y5 f 02rf 2, 53 5. 514.3 250 r 105 1 � 55 2 ,.. : LJ ZONE 033 3, 91 6.486 514.5 400 r 30 - R' ( =• - �. , >�, • • 0 4.5041 6.486 614.7 220 ? 140 I• ZONE _ - _ ��r uuu��■. I. •5! 22 ZONE AE - ---L• ' PANEL 44 OO2 9,1�0 $.48515.7 17 490 _ u'' '..__ . }. r7r '� k M1 • 2 ' ` 1 1 � \,..7.1..„ tr + : . :. _-. - I 'SEE LOCK!OR L'IJtGRMel OR MAP INDEX FUR FIHAe PIVIEt072 7,224 8.48�0 518.E 33 135J • • L, S tit •• • L1 oiJTI 7 • • I079 7,8fi81 5. 5 _ ;; _; Al!N � + ,L . } .:�-' v 5 - 1 + + + ~ I I m 5.': 1 III �I :]\I1113 . kr ' 1 CONTAINS. 8, 71 .E 1 � I ri' - ._� . . + .: } • _ r �''� / f • �.} . I 1 {�• .'"'1k. k •"" - _' COMMUNITY AID Na. PANEL SUFFIX 1 + + 1 a f f 4%.• •.. ILI,y . W 097 1,6671 6.466 `525.3 30 r 115 h ,' - •! f , 1.r. • . �� ZONE.X 1 v1 F =' sy. •4. �'' 1 LINID 1�UJN rY '3?o2a6 44�4 J 113 11:34•6' 6.207 526.13 36 r 50 4do OM FEET t -` - di]GOD FEET vraxHaw.TWIN[k 370473 4474 +. r:•ce �if50 erohE Err JOINS PANEL 4473 ':'::':":' _ , 11 E1 11,9031 I3.207 52E1.4 103 r 100 4`r" 52.2 523 rt 1 llh�`t'NA Seat�:L Ce w�E3LEY CH 4PE�.V1�L+ 3E�F w S 4474 J 1 flOC�F'E t" 1 .472 500 FEET 1 480 00O FEET 12B 12,84191 6.207 520.5 192 r 221 11r4.'!1L•..r.11IL•t•n'L•k r' ZONE X Town or Wax haw ' TbAhl a..�1'4 IIIII ' Fee[ebteie rrt]uII 2 Feel elabae Stale Launder')MB�sdiorl rt Lss rcludes tFarabdr effects'Value 37 7 rill I$ nacr Jratn.a5 IN,lk}4 FSi wan adju Lod in1h15 ar$a RIrr9 h 14p4graRh 4aiBd NOTES USERS 1.'l1Y- 1'odpl oari reclelr�ea1, n This map is far u in ase inn inisiering 1he National Flood Insurance Program. 11 does not Certain areas not in Special Flacd Hazard Areas may be protected byflood control structures. This map reflects more dela fled a rme.end up-10-dete stream channel conllgurallb then those MAP REPOSITORY I 11 } neces-sarily identify all areas subjeoL to flooding. particularly from local drainage sources of smell Refer to Section 4.4 "Flood Protection Measures" of the Flood Insurance Study report for shown on the previous FIRM for this jurisdiction. The floodplains and floc lays that were Refer to!MN of Alan kerb:Meries on Man Index or 5R5it hnp...imi it nthednmeps.evn. I mahyr Size. Tt'I$ orarnlmunity wrap repository SrOuld be.C t18uIL d for poSsible upd L d of addiki0rl l irmrOrm2aion or1 flood control glr..OiureS in1hiS jurisdiction. harfifBff9d from the pf9 i0uS FIRM May hay.e been 2ldjusked L c rfi(i'fl 10 thine. new stream v .. . "I ,iL '•'I...,,:I lit::!...\ ! flood harard InfOrrrlatiCin channel OOrrlig calk rt3. result. Hie Fipple Prgfil and FIOO Data fables I the FI o EFFECTIVE DATE OF FL A INBURANGE RATE MAP PANEL n' L eamt map information and gecspa11a1 data used to develop 'his FIRM were Obtained from Insurance Study report 4.which contains aLrlhori'a11we hydraulic dela) may reflect s'reem channel p0�jBpR 10 2 r .1 Yip I��`r;l C i rt I �'l`11 rt 1 f`;l 111'.� �. .r h To obtain more detailed infprniRtion in area a where Barre Flood Elevations (BFEs)crud.' r Roo-d various cr erizatior-Is. induct the 1ci 1 local comet unit ies.1, stale end federal distances that differ from what is shown on 1h is ma ti +Nate O P�n9 P „� y 4- .p haw been determined, users are er1Oolrageci 'o consult the Fled Profiles. F'oo ayr ❑ela, Limited agencies, andlor other sources. The primary base for Lhis FIRM is aerial imagery mired by a-F .'• FELW'S CC FMRATI 5 -ECFf,1�f:" .LaUNER r,Y*,1)#fit, EFFECTIVE DATES}OF REVISION fS1 TO THIS PANEL �� W1 Ip Leal -III dap timber el'ax%bertro lihd:k.1 Le vdecl DeLa1'ed FbDd Hazard Date,error 8urnmark o1 S1"'wster E'evaklrns tables contained Whir 1he Fb4d Union County. The Lime period of collection for the imagery y is 2C04. Information and geospakial Please refer 10 the separately prinked Map Index for an overview map of the county showing the 1 5rrren daa�g mop orders;the oorrrnlnitjr NumGor shower aGoa+e Insurance Slimly {FIST report 1hat au:mom-1 s this FIRM. Users should be aware That DFEs shrnvn dale suppueg IN the 'ma' communtky+(Ies) Ihat met FEMA baS rnfip gpeurre cm. were layout or map pines: Ogrrtmunrly� map rep<SII�7r}+addresses. and a L1s1Ir or Cornet Ities 1abI aha F4 4, used CA rpry e OpfliIVIIXrEi roc Me slAied on 1he FIRM represent rounded whole-foot eleyaiions. These BFEs are intended for flood insurance considered the preferred source for development of 1he base map. Sae geaspatial matadaia for containing National Flood Insurance Program dates far each community as well as a listing of Ina mrtrully. This digital Flood Irlsuri3rYn Ri31 map CFI RrJI� 1wi35 prfodu ed through jh unique p irpo pnFy am should r10# t* 11 , OS 'he sole Irce 0 flOOd elealicrl itmFOrrnaliprm. the associated digital FIRM for additional inforrnalion about base map preperalion. panels on which each community is located. III Accordingly. need elevation data presen'ed In the F'3 report should be u1"'wed In ocluncl'on with the EFFECTIVE SATE MAP NUMBER aperakiwe paflnrhip between theStem vf Nprlh G$rline end the Federal +I�IIY'�� Em fg1$tiv Marine emBrll twe enncy FE r to Thy tat of N or1YY Oa a Fe has FIRM for purposes of Ccnswclion enamor flaadplain management 6OSe rn80 feat S shovel Or' 1hls rrmap, guOh aS corporate li mites. .are twed on the most up•fo" If yOu have questions about this map pr dasher$ concemin9 ins Noligrma' Food ins Hoe IYI 1 4a1e Oat a IEble at the 11me• Of p.t1 11On Chars es in the corporal* Omits may have Prr raI1 rl caner$'. please call 1 - a77 - FEN!1 L MAP (1- 7 T- -2r ) c VIen The FEW. 1 1 OCTOBER OBER 16, 20DB 371 04474iJ implemented a long term approach of floodplain management to decrease the BoundRri� of nagulafory+ floodways shown c7n thin FIRM ipr Hooding Inpt$ slspied try dt+�icd occurred since this map was published. Map users should consult the appropriate community website a1 ht1p:Mvimy.fema.gow. iF costs associated with flimding. This Is demonstrated the Slate's commitment to 'IT' 'f rrmaihods were computed $L cross sections and Interpolated between cross .sections. The noodways c#ficial or websile io verify current conditions of jurisdictional boundaries end base map feaLu�es For OoniYluniy nap re..ision history prior Io slate/Ade mapping. refer to u,e Cornrruniry f lap Fistalyr[able blued in r map flOodplairl @CMS at the local 18yal. Asa pars of-his (fort, the slab? or NOrlh were based an hydraulic.eonalderahons with regard to re .,Ireme�rhs 01 1he Nallona' Flood Insurance T11is R1 7 niev mriain rclads trar1 were r iO1 COnsidr d G in the hydraulic 2rla lySis Of Skf92mS wrl9f9 An ace mpanyirls)Flood Insurer-tut 81udk fowl. Letter of Map sovisien(LOMR)of Lefler Of Map ihe•FlDad'nsur.nnt:e Sw t for ay report Ihtsjurietii lion. Carolina has jointed in a Cooperating Technical Slate agreement with FEMA to Frogram. Floodwayr widths and other pertinent floortway data for flooding sources studied bydetaied no new hydraulic model was created during the production of'his statewide formed FIRM. Amendment {LOMA) revising pcxiicrtis of this panel, and digital versions of this FIRM may be A. pfr�duoe an methods as well as non-encroachment widths for flooding sources stuffed by limited detaicl available. Visit the North Carolina FIpoclplAIn MApping Program website at p'ulaiarl of Errpugoncyr Menapemerd or INN Nahum' Fbod 'nsurenoe Rroprern at 1he 'o'lowitp Milt numbers or L;(1 d maintain this digital FIRM. r To delearirle 'r-bad Insurance is awa'lalA rm 'h� oorrnuniw. oonlaci pour insurance agent. the North Caroline i L methods are provided in the Flood Insurance Sludyr �FIS) report for this jurisdiction. The F'.5 report htip:rJwww.nolloodmaps.Gom. or contact the FEMA Map Service Center aL 14J3-3 -9519 for k's: ' ` also provides Ins1ruc1Ions for determining a neodway using non-encroaclrnenL widths for Rcod19g information on all related products associarled with this FIRM. The FEMA Map Servi:a Center State o f'North Carolina VINIAl.ncfloodm aps.com sources stinted by limited deleiled methods may alSO be feaChed Fyy Fax at 1.4 10-?,, - 0 end rig websrie a' hk'p Himmel..ITISC.ternE, per, NC Eiviskin of Ernergenty Managernert Naiiont'Red Insurance Frogr3r i 1910 715:8000 hop: nrnr.nc crim nlral.orcrni p 1-800413845d2O hi,Li rr.fernn.gp5n'nfip I. Fcdeeal Et icrgeney T lana omien.Agency Page 1 of 6 Issue Date: October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP Follows Conditional Case No.: 05-04-1109R �pARTM OF4rNar � �° Federal Emergency Management Agency Washington, D.C. 20472 AND SE�J LETTER OF MAP REVISION DETERMINATION DOCUMENT COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION BASIS OF REQUEST Town Of Waxhaw FILL FLOODWAY Union County HYDRAULIC ANALYSIS North Carolina UPDATED TOPOGRAPHIC DATA COMMUNITY COMMUNITY NO.: 370473 IDENTIFIER NC-15-469—Prescott Development at Twelvemile Creek APPROXIMATE LATITUDE&LONGITUDE: 34.929,-80.765 SOURCE: Arc GIS DATUM: NAD 83 ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES TYPE: FIRM" NO.: 3710447300J DATE: October 16,2008 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: October 16,2008 TYPE: FIRM* NO.: 3710446400J DATE: October 16,2008 PROFILE(S): 109P, 110P,111P and 112P TYPE: FIRM* NO.: 3710447400J DATE: October 16,2008 FLOODWAY DATA TABLE: 12 TYPE: FIRM* NO.: 3710446300J DATE: October 16,2008 ANNOTATED LIMITED DETAILED FLOOD HAZARD DATA TABLE:10 Enclosures reflect changes to flooding sources affected by this revision. *FIRM-Flood Insurance Rate Map FLOODING SOURCE&REVISED REACH See Page 2 for Additional Flooding Sources Twelvemile Creek-from approximately 500 feet downstream of Waxhaw Marvin Road to approximately 600 feet upstream of South Providence Road SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases Twelvemile Creek Zone AE Zone AE YES YES Zone X(shaded) Zone X(shaded) YES YES BFEs" BFEs* YES YES Floodway Floodway YES YES "BFEs-Base Flood Elevations DETERMINATION This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency(FEMA) regarding a request for a Letter of Map Revision (LOMR)for the area described above. Using the information submitted,we have determined that a revision to the flood hazards depicted in the Flood Insurance Study(FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C Page 2 of 6 Issue Date: October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP f:14.7,940,614,, Federal Emergency Management Agency °4,,`` '� �� Washington, D.C. 20472 LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER FLOODING SOURCES AFFECTED BY THIS REVISION FLOODING SOURCES&REVISED REACHES Twelvemile Creek Tributary 3-from the confluence with Twelvemile Creek to approximately 3,650 feet upstream of the confluence with Twelvemile Creek Twelvemile Creek Tributary 4-from the confluence with Twelvemile Creek to approximately 280 feet upstream of Pineoak Road SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases Twelvemile Creek Tributary 3 BFEs* BFEs* YES NONE Twelvemile Creek Tributary 4 Zone AE Zone AE YES YES BFEs* BFEs* YES NONE Zone X(shaded) Zone X(shaded) YES YES BFEs-Base Flood Elevations This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C Page 3 of 6 Issue Date: October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP �,r° Federal Emergency Management Agency °4, '`` '� �� Washington, D.C. 20472 �l4ND Sti�� LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS REVISION CID Number: 370234 Name: Union County, North Carolina AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT TYPE: FIRM* NO.: 3710447400J DATE: October 16,2008 DATE OF EFFECTIVE FLOOD INSURANCE STUDY: October 16,2008 TYPE: FIRM* NO.: 3710446300J DATE: October 16,2008 PROFILE(S): 110P, 111 P and 112P FLOODWAY DATA TABLE:12 *FIRM-Flood Insurance Rate Map This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C Page 4 of 6 Issue Date:October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP Oti4A��1 �gt ° Federal Emergency Management Agency ° '`` 4 Washington, D.C. 20472 �'44ND StiG- LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) COMMUNITY INFORMATION APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234)and in accordance with the National Flood Insurance Act of 1968,as amended(Title XIII of the Housing and Urban Development Act of 1968,P.L. 90-448), 42 U.S.C.4001-4128,and 44 CFR Part 65. Pursuant to Section 1361 of the National Flood Insurance Act of 1968,as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria,including adoption of the FIS report and FIRM,and the modifications made by this LOMR,are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply. We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore,the floodway revision we have described in this letter,while acceptable to us,must also be acceptable to your community and adopted by appropriate community action,as specified in Paragraph 60.3(d)of the NFIP regulations. COMMUNITY REMINDERS We based this determination on the 1-percent-annual-chance flood discharges computed in the FIS for your community without considering subsequent changes in watershed characteristics that could increase flood discharges. Future development of projects upstream could cause increased flood discharges,which could cause increased flood hazards. A comprehensive restudy of your community's flood hazards would consider the cumulative effects of development on flood discharges subsequent to the publication of the FIS report for your community and could,therefore,establish greater flood hazards in this area. Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or community officials,based on knowledge of local conditions and in the interest of safety,may set higher standards for construction or may limit development in floodplain areas. If your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria,those criteria take precedence over the minimum NFIP requirements. We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders;instead,the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way,interested persons, such as property owners,insurance agents,and mortgage lenders,can benefit from the information. This revision has met our criteria for removing an area from the 1-percent-annual-chance floodplain to reflect the placement of fill. However,we encourage you to require that the lowest adjacent grade and lowest floor(including basement)of any structure placed within the subject area be elevated to or above the Base(1-percent-annual-chance)Flood Elevation. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C Page 5 of 6 Issue Date:October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP Oti4A4��1 0.U° Federal Emergency Management Agency ° Washington, D.C. 20472 AND 11,, LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) We have designated a Consultation Coordination Officer(CCO)to assist your community. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO,please contact: Mr.Jesse Munoz Director,Mitigation Division Federal Emergency Management Agency,Region IV Koger Center-Rutgers Building,3003 Chamblee Tucker Road Atlanta,GA 30341 (770)220-5400 STATUS OF THE COMMUNITY NFIP MAPS We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s)and FIS report warrant physical revision and republication in the future,we will incorporate the modifications made by this LOMR at that time. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C Page 6 of 6 Issue Date:October 28,2015 Effective Date: March 10,2016 Case No.: 15-04-4099P LOMR-APP Oti4A�"—.1 Federal Emergency Management Agency °U Washington, D.C. 20472 AND Sti LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) PUBLIC NOTIFICATION OF REVISION A notice of changes will be published in the Federal Register. This information also will be published in your local newspaper on or about the dates listed below and through FEMA's Flood Hazard Mapping Web site at http://www.floodmaps.gov/fhm/Scripts/bfe main.asp. LOCAL NEWSPAPER Name: The Enquirer Journal Dates:November 4,2015 &November 11,2015 Within 90 days of the second publication in the local newspaper,a citizen may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. Therefore,this letter will be effective only after the 90-day appeal period has elapsed and we have resolved any appeals that we receive during this appeal period. Until this LOMR is effective,the revised flood hazard information presented in this LOMR may be changed. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document,please contact the FEMA Map Information eXchange toll free at 1-877-336-2627(1-877-FEMA MAP)or by letter addressed to the LOMC Clearinghouse,847 South Pickett Street,Alexandria,VA 22304-4605. Additional Information about the NFIP is available on our website at http://www.fema.gov/nfip. Luis Rodriguez,P.E.,Chief Engineering Management Branch Federal Insurance and Mitigation Administration 15-04-4099P 102-I-A-C • •• • • • • 50� �o� ��� Legend ZONE X • • '5D?, > ��� �'�m 1% annual chance • (100-Year) Floodplain ,FLOODING EFFECTS,,' ZONE AE a ':FROM'TWELVE=MILE•,•.,, 1/oannualchance r . • ' ' ��� (100-Year) Floodway CREEK, s • . LANE ° j 0.2% annual chance ZO,NEAEi o MAPLEWpO° (500-Year) Floodplain . (ELEV 507) 1 .... �ZONEX C. �z J Town of Waxhaw °�LPNE �'I.N�'� REVISED*ARt,EA / 370473 0 P` -' GRID NORTH MAP SCALE 1" = 500' (1 : 6,000) — Zm 511 500 0 500 Io ' I I IFEET \.7 ,f-- I I I 'METERS �O 51g 150 0 1 �� Ttvelvernile Creek zir 0ICNIF�II���II PANEL 4473) Tr•ibutar•v 4 ��. �� ��� 52 2 0a FIRM 1 .NE A E 528 � its, FLOOD INSURANCE RATE MAP 7 �" - � ® ;_O NORTH CAROLINA r ', r av Ass of 1 -%.,_ti sTONE o> `� _; PANEL 4473 ,p •,it., - Q ® -_, (SEE LOCATOR DIAGRAM OR MAP INDEX FOR •v \. I;KtJ I Q'6 ♦. FIRM PANEL LAYOUT) 1 •• •`�� DRIVE U Q - 1.;: ,�u�aC, ...ow,: s3� •V CONTAINS: ,3v {'�' � �• ti FOREST OAK COMMUNITY CID No. PANEL SUFFIX 051 LANE �u UNION COUNTY 370234 4473 J aiY.• '"..1*' • 535 WAXHAW,TOWN OF 370473 4473 3 • • ... , Ulnion County . '.,� W Z Unincorporated Area .e_4A. O� H OAKS 1 REVISED TO '- _-;: 370234 '?" e i =� �� �539 °°ART ® REFLECT LOMR ,. r .,,� , "ti` �.. •• Fr. 1 __, EFFECTIVE: March 10, 2016 y' R��' - "•`, - �. t ^ ® 1 II Notice to User:The Ma Number shown below should be yCID r'•��,t`• a �... _ _.. 1 r.. - ¢ ,d � } shown when abo placing a P used insurance a applications Number -'i. `��.4W* ��] • . � •f.. -',11 b' Pacing map orders; Community -, A':`C.h 5 �11 he subject community. ' • �• f .. S J EFFECTIVE DATE MAP NUMBER ZONIE AE OCTOBER2008 371 300J i,ti 4• . a .: ,..,'tis* W OAKS Q O 47 14 .,,s s • • COURT __CD n a otirA�T S ` : `' r. .�..kSU�NBONNET DRIVE:' r+"� . / It 4Xhr34 a:f ; '( * S.,.� 546 WINTER III i g gU; \ t. COURT QI11" o'''gNDStiL� "P 0 ® 066 2. State of North Carolina 9��� '1•�a�' 549 I 553 Federal Emergency Management Agency} 7.L..-...- 1. .:c -.. • -'�_'.y,y�r�� FLOOD HAZARD DATA TABLE FloodwayWidth(feet) Legend •'��-�,°- - .- ,ter -':. '- ,,y�1- • a..: - ••-•N MF`-j Left/Right ht Distance From the :?1F.: i. Ly T.L :: M1.. • r. 9 ..5 xfx Y�,,• � • '4• • ' . Center of Stream to "`_k 1%Annual Chance 1% annual chance -:- ` ,4'r':_— "qt: • '� Encroachment Boundary.;•- •— �' t, Cross Stream Flood Discharge (100-year) -9 ",1;'•- �' (Looking Downstream)idth MB (100-Year) Floodplain v�,C�-Y~ •• •• •\ •�• ._ -":�� Section Station' (cfs) Water-Surface Elevation G Iy}:;.' -z.. .^ Total Floodway Width _ .. ''.A: \ ., c s '''. - .=�, (feet NAVD88) °gyp- • .. _ •_.;=®®® i. ®_ �/// 1% annual r) chance_: ."-. : .r' (100-Year) Floodway • ,.I., - ,m3k��:m�a.7�rra:rm.T.Fn • .. n�, _ _ `.n :- ,I REVISED DATA I 0.2% annual chance .' _ ,. ' d It t y r+ry (500-Year) Floodplain 1 . c x •.. l ,,w,\IV11 \. • 1, - ' el'L,own'�UJ� �%�%aa:l-1:aW _ .^•� �:'. ..Ns. .c:"�$ l T GRID NORTH Union Couln F =� 3r7,,047�3 .- f MAP SCALE 1" = 500' (1 : 6,000) K t �.4 j�o- ', °• .0 500 0 500 ��. Unincorporate1Area — FEET • 370234 '�" 4. 1 I METERS ' '- -•1 i - ti a 150 0 150 r - - ''.ram ' . -.:_....... °. •' _ ► : if\ •.A: • A#. 111k��IJIIII PANEL 4464J ..., , . . _,.. .... •, • ,. .. INF •.. ._.-•,...,7A•...•..,.:...-•-',•'..•.•,,,. , •,4 •-i-77.,-.7•.•,-!-,-. %4-•..., •.••.'.1t c,.„, FIRM + • : bur FLOOD INSURANCE RATE MAP • . -- -411*- : - \.Tvor..,. :. NORTH CAROLINA .. -•' 42.-4iiie --• "*. it'll _ 44 �, . .�_ '4y. • • �w PANEL 4464 •'fit' 1. : y,' lit Z (SEE LOCATOR DIAGRAM OR MAP INDEX FOR • . r / S �R. FIRM PANEL LAYOUT) ?9 '�.. 114 1' „Vn CONTAINS: 9, ti 4°'''aM II_••.�:: .. '' -' i -i, i 4 ♦ ifik ...' COMMUNITY CID No. PANEL SUFFIX ' �` ?A `Union County - � �'=' MARVIN,VILLAGE OF 370514 4464 J �- e. r _ i �� (f UNION COUNTY 370234 4464 J ` `�' .Unincorporated Ara - o r L WAXHAW,TOWN OF 370473 4464 J - VII REVISED TO 1 �,. '* , 370234 T gV '._ _ - AA76 . -' :� ` ,, .--. REFLECT LOMR /. r.: ,, rf . yW" ® EFFECTIVE: March 10, 2016 h.''j,':,rAr} `L ,ry�.' v �`' - �' y. ' �.,.+. � REVISED AREA Notice to User:The Map Number shown below should be iti i, ;n- j.': • " /� IlAi used when placing map orders;the Community Number 11 �'� •r "` _ shown above should be used on insurance applications for •Yi:-' _ �:- ��.��. PP ica Ions r rr _;-C-' � � • the subject community. • rf: _.. d� Twelv.4" Ca:1 ' / / L.., / r =�-+.:r-- N. • �J EFFECTIVE DATE MAP NUMBER • ".': - . •. b. ' =.°b..' . / m OCTOBER 16,2008 3710446400J r.• . •. ZONE AEL. / i �Z • 'AS o ZONE X/? , ::' oU� u�• ;} Mdi State of North Carolina r o . ' ,. / "" Federal Emergency Management Agency ® ':sii '' ' FLOOD HAZARD DATA TABLE Floodway Width(feet) `J ��'•.i" 'r Left/Right Distance From the Legend (� 1%Annual Chance Center of Stream to tv �x{, rS 54 Cross Stream Flood Discharge (100-year) Encroachment Boundary - ` •�y:. (Looking Downstream)or `J ,./ Section Station (cfs) WaterSurfaceElevation Total Floodway Width 1% annual chance it x 4 • -} (feet NAVD88) -.ci TWELVEMILE CREEK (100-Year) Floodplain `x, 101 10,1221 11,670 506.7 553/33 1% annual chance Town of Waxhaw 1 119 11,9151 11,670 507.4 362/92 I I/ 370473 139 13,8761 11,670 508.3 410/78 (100-Year) Floodway 152 15,1541 11,670 509.8 140/80 156 15,6541 11,670 510.3 600/451 El 0.2%annual chance TWELVEMILE CREEK TRIBUTARY 3 (500-Year) Floodplain 510 i 005 5082 1,194 507.1' 14/14 --I 013 1,3102 1,194 507.13 14/14 019 1,9382 1,194 507.13 14/14 2 Feet above State boundary`Feet Above N4outh'Elevation Includes backwater effects I 1 �• • . ,. REVISED DATA— ( liar .�\�, i� ZONE X . ' ' I 0 -, _ ` GRID NORTH MAP SCA1 : 6,000) J1$E. 027 (b' o I• I I T— 'FEET tO Unincorporated Area ZONE x z I I I (METERS 370234 O 150 0 150 i i elvemile Creek / •Wv 1� ��p rr 77 Trlvttrat_n 3 : • 1, I [ 1 • PANEL 4474) 508 , /" ••..' I .� • 2�2EGI3 ..' // - . • • • //, 1 � % Q FIRM • \ � • _�, FLOOD INSURANCE RATE MAP \ `sow ZONE AE � ® NORTH CAROLINA r • lee7 7/ • /. ON.. Twelvem-l'le 0 • • "'` 005 ZONE AE •\ U PANEL 4474 lie •� Z (SEE LOCATOR DIAGRAM OR MAP INDEX FOR K - \ .•- FIRM PANEL LAYOUT) ti � m..ID CONTAINS: JnO, _ 1111, - ZONE AE' COMMUNITY CID No. PANEL SUFFIX • // _ UNION COUNTY 370234 4474 J / / Q , .;�: •• - CSO� I��, WAXHAW,TOWN OF 370473 4474 J /. / WESLEY CHAPEL,VILLAGE 0E370525 4474 J 1, Y (, / y, REVISED TO • }�.� ` • ® REFLECT LOMR ./ / ZONE AE/ o -/ .: /' • - �� ® EFFECTIVE: March 10, 2016 /','�. -. = - Notice to User:The Map Number shown below should be � ,. • J used when placing map orders;the Community Number r1i shown above should be used on insurance applications for ... • 4 • I; .• ZONE X me subject community. • �. 1 4 J EFFECTIVE DATE MAP NUMBER• '' . REVISED ',RE•, " • Twelvem-ile Creek1i •I OCTOBER 16,2008 3710447400J �/ • • Tributa 4 -, ;�4t• ti % ":' U1111©n County 77.. o�QARr 4 : .. _P' ' TM u .Unlineorporated Area ®_ °_ '4% taj9. '�A�e' Z _. O. •ZONE AE • S IpINEOA • KR©AD O-O� Q p 370234 ,„r• • a ' • • /3/ G O 0 6' kl m o :y • ,5-- ..,,,.. �e qun..0 73 m �� State of North Carolina C. r. t. g �� ` Federal Emergency Management Agency J - ir s• o • Legend E 1%annual chance t KENSINGTON�RIV ; , . (100-Year) Floodplain Union County �� • S.!,.. . // 1D/0 annual chance 1nliineorporated AreaZ®NQ x - / ; \ 3710234 •ZONE AE ;• • • • ;� (100-Year) Floodway 0.20/0 annual chance • • os (500-Year) Floodplain 'T . • / t;.i••••, .-. -. /�� `SOS • �yz�� GRID NORTH o • ZONE•X• • • 7 °1-k_ MAP SCALE 1" = 500' (1 : 6,000) F • • • • 500 0 500 i .:�l / ' •) • • • '4)* /1" i I I I FEET 1,, ; / ` I I I METERS • I`�NIF�`IJIIII PANEL 4463J i ,REVISED AREA 44. • : : : . . . . : - / • • • f FIRM • Tlt'elvemu2e Creep I Q • \ •,x t�; FLOOD INSURANCE RATE MAP ® NORTH CAROLINA . • • • •. • Town of m.. �; . . . . . +, iib.i., mil W . o370473 PANEL 4463 N h -_, (SEE LOCATOR DIAGRAM OR MAP INDEX FOR r, Fer � FIRM PANEL LAYOUT) ZONE AE ,!,.....;.:.I.:.....,:..:,...,:... : - Q i R' • g:", / ZONE AE Ito. CONTAINS:CONTAINS: N ...... COMMUNITY CID No. PANEL SUFFIX �r ,, ,)./, :' 113' UNION COUNTY 370234 4463 J / Eli). WAXHAW,TOWN OF 370473 4463 J ?, '" '•,, -.. :?;- .. --- REVISED TO " an REFLECT LOMR Town of Waxhaw11Union: ount EFFECTIVE: March 10, 2016 .. R 370473 4 ` �\`�\ V Y Hr Notice to User:The Map Number shown below should be 50 C; \vE Uni co, orr�ted /`rcr� used when placing map orders;the Community Number Unincorporated 11 1 C.: Arca shown above should be used on insurance applications for �R `- :'! •-' - the subject community. . 'i ' 3.70 II' EFFECTIVE DATE MAP NUMBER FLOOD HAZARD DATA TABLE Floodway Width(feet) c OCTOBER 16,2008 3710446300J LeftlRight Distance From the Center of Stream to sriuF F"4AR$yF 1%Annual Chance o��,4 Cross Stream Flood Discharge (100-year) Encroachment Boundary ® N. �. Section Station' (cfs) Water-Surface Elevation (Looking Downstream)or l ti\ j�� Total Floodway Width (feet NAVD88) v NY o rr TWELVEMILECREEK IPI �` "� � ��xnse°� 082 8,200 11,670 504.7 343/134 p�7 l._ 089 8,945 11,670 505.6 210/157 i State of North Carolina 'Feet above State Boundary I .+� +".- ; 4-4 ` Federal Emergency Management Agency J REVISED DATA .-� ,� ` ".��Li.a- _4 �, ` J 540 540 530 CV w } CC 530 Owl z W J wwm W w~ /W/�// w i III I.L 520 OU U - - • 520 V IJ- 0 W REVISED AREA ► L,L J 0- 2 W 510 - - • 510 0 . 1 0 J a UJ Z 500 500 1- r w w LL Z_ Z 0 H w490 - 490 J w z 480 480 LU CO I— V w Ej Z 088 089 w w 470 470 Z Z I- LEGEND < m >- 00 0.2%ANNUAL CHANCE FLOOD z U CL -- 1%ANNUALCHANCEFLOOD 0 Z 0 2%ANNUAL CHANCE FLOOD LU O Z_ 460 10%ANNUAL CHANCE FLOOD LU Z CI A<A<A<A< STREAM BED < Q /\ /\ Q 062 075 082 ® CROSS SECTION LOCATION \/ \/ LU LL 450 4,800 5,200 5,600 6,000 6,400 6,800 7,200 7,600 8,000 8,400 8,800 9,200 9,600 10,000 REVISED TO STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY REFLECT LOMR 1 09P EFFECTIVE: March 10, 2016 550 550 540 Li_W u_w 540 O O WCto) Ct � } w }O 0 Z < Z < WJI- LL1JI- w- - LLI Z Z W N� Owl- Owe LL V 530 O� O� 530 1.1. 0 w Ce J 41 REVISED AREA a C 0 G 520 520 0 w 0 J J w LL 0 H a Z 510 510 w - --- -- -- - - - - - LL - - - - Z Z O w500 500 J W U Z 490 490 LU U CO I- U w w Z Ce ice` /<<M Q H w 480 480 Z Z I- LEGEND >- 0 0 0.2%ANNUAL CHANCE FLOOD Z 0 11 -- 1%ANNUAL CHANCE FLOOD 1 Z 0 2%ANNUAL CHANCE FLOOD w 0 Z 470 - 10%ANNUAL CHANCE FLOOD w Z STREAM BED < Q Ct ® ® LLI ® CROSS SECTION LOCATION CI LL 460 10,000 10,400 10,800 11,200 11,600 12,000 12,400 12,800 13,200 13,600 14,000 14,400 14,800 15,200 REVISED TO STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY REFLECT LOMR 110 P EFFECTIVE: March 10, 2016 550 550 Y Y w CC W Oz0 540 ¢O Y J • 540 U w w w THIS LOMR REFLECTS A SHORTER STREAM DISTANCE(175') LL , WITHIN THE AREA OF REVISION DUE TO UPDATES IN REACH c�w O w w LENGTHS IN THE STUDY AREA TO ACCURATELY REFLECT W = o w J GROUND CONDITIONS.THE UPSTREAM TIE—IN CROSS SECTION Cl) Lu O Z w 15645 IN THE AS—BUILT CONDITIONS MODEL CORRESPONDS W �W�// rz n J TO CROSS SECTION 15820 IN THE EFFECTIVE MODEL. LL 530 cliz 530 (a) 1- IJ- ° Cr) O W Ce • REVISED AREA —I 0- 2 w 520 520 O O J J U U. J I— a --- Z 510 ��� .. _-- 510 w — — — — — w La. i Z _ Z O H w500 — 500 J w 0 Z 490 — — — 490 w C3 N z (a) w w Z W 480 480 Z Z H LEGEND < M < >— O0 0.2%ANNUAL CHANCE FLOOD z U CL -- 1%ANNUALCHANCEFLOOD Cw`1 Z 0 2%ANNUAL CHANCE FLOOD W O Z_ 470 10%ANNUAL CHANCE FLOOD w Z CI I A<A<A<A< STREAM BED < Q /\ /\ LU 139 0 156 ® CROSS SECTION LOCATION \/ \/ W LL 460 13,200 13,600 14,000 14,400 14,800 15,200 15,600 16,000 16,400 16,800 17,200 17,600 18,000 18,400 REVISED TO STREAM DISTANCE IN FEET ABOVE STATE BOUNDARY REFLECT LOMR 111 P EFFECTIVE: March 10, 2016 550 I I I I 550 1%ANNUAL CHANCE BACKWATER EFFECTS FROM TWELVEMILE CREEK 0I M IM 540 1 w - -• • 540 :CC WU Z w REVISED AREA CO D J LL1 LL J D III 530 OO H - - - 530 J 0 W LU Ce Ce 0520 • '�i �' Cl ' 520 O W - U. ' W a 510 /"��' 0 510 ww - - - - -- -�^ 2 LW Z _ice (Y r.... .... } Z _N m 7 4Q 500 • 0 500 J w 0 Z 490 I 490 W 0 CO < 0 < d Z'IV Z W eV050 Z 055 060 LU re w > Q W 480 480 Z Z H >- 00 FLOOD0.2%ANNUAL CHANCE 0 0 a FLOOD Z 0 FLOOD w O U Z 470 ••. w Z CI Q M Z Q II CC 013 019 027 036 041 LLI \/ \/ \/ 0 CR• • • • LU U- 460 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000 6,500 REVISED TO STREAM DISTANCE IN FEET ABOVE MOUTH REFLECT LOMR 112 P EFFECTIVE: March 10, 2016 BASE FLOOD FLOODING SOURCE FLOODWAY WATER-SURFACE ELEVATION (FEET NAVD 88) SECTION MEAN CROSS SECTION DISTANCE' WIDTH AREA VELOCITY REGULATORY WITHOUT WITH INCREASE (FEET) (SQUARE (FEET PER FLOODWAY FLOODWAY FEET) SECOND) Twelvemile Creek 024 2,360 157 2,428 4.8 502.2 502.2 503.0 0.8 047 4,700 568 6,253 1.9 503.9 503.9 504.7 0.8 062 6,180 700 6,316 1.8 504.4 504.4 505.3 0.9 (17S 7,4F11 77f, 7,77 1 _f, 5(14_R S(14_R Sf15.7 _ (l_9 082 8,200 477 4,657 2.5 504.7 504.7 505.7 1.0 088 8,802 389 3,843 3.0 505.5 505.5 506.2 0.7 089 8,945 367 4,251 2.7 505.6 505.6 506.3 0.7 101 10,122 585 4,371 2.7 506.7 506.7 507.3 0.6 119 11,915 454 5,037 2.3 507.4 507.4 508.0 0.6 139 13,876 488 5,251 2.2 508.3 508.3 509.0 0.7 152 15,154 220 3,017 3.9 509.8 509.8 510.4 0.6 156 15,645 1,051 15,052 0.8 510.3 510.3 511.0 0.7 A 'Feet above State boundary 'Value is inaccurate, as the floodway has been adjusted in this area to match a topographic redelineation 41 REVISED DATA FEDERAL EMERGENCY MANAGEMENT AGENCY -I REVISED TO D REFLECT LOMR FLOODWAY DATA r UNION COUNTY, NC EFFECTIVE: March 10, 2016 rn AND INCORPORATED AREAS N TWELVEMILE CREEK BASE FLOOD FLOODING SOURCE FLOODWAY WATER-SURFACE ELEVATION (FEET NAVD 88) SECTION MEAN CROSS SECTION DISTANCE' WIDTH AREA VELOCITY REGULATORY WITHOUT WITH INCREASE (FEET) (SQUARE (FEET PER FLOODWAY FLOODWAY FEET) SECOND) Twelvemile Creek Tributary 3 005 508 28 241 5.0 507.1 496.42 496.5 0.1 013 1,310 28 151 7.9 507.1 498.92 499.1 0.2 019 1,938 28 162 7.4 507.1 503.42 503.7 0.3 027 2,708 28 203 5.4 508.5 508.5 509.2 A 0.7 036 3,641 28 143 7.2 512.3 512.3 512.5 0.2 041 4,106 28 194 5.3 515.1 515.1 515.2 0.1 050 4,981 15 110 8.3 519.6 519.6 519.9 0.3 055 5,485 15 106 8.6 522.6 522.6 523.5 0.9 060 6,013 16 118 7.7 526.6 526.6 527.2 0.6 068 6,761 17 123 6.5 532.2 532.2 532.6 0.4 071 7,114 15 117 6.8 533.7 533.7 534.4 0.7 075 7,541 23 144 5.5 536.0 536.0 536.4 0.4 080 8,003 35 136 5.9 538.9 538.9 539.0 0.1 087 8,687 29 190 3.7 545.6 545.6 546.3 0.7 091 9,095 29 169 4.1 546.3 546.3 546.9 0.6 095 9,466 21 113 6.1 547.5 547.5 547.9 0.4 102 10,170 16 125 5.5 551.9 551.9 552.7 0.8 105 10,514 16 83 7.0 553.2 553.2 554.0 0.8 111 11,120 16 84 6.9 558.0 558.0 558.5 0.5 1Feet above mouth 2Elevation computed without consideration of backwater effects from Twelvemile Creek REVISED DATA FEDERAL EMERGENCY MANAGEMENT AGENCY -I REVISED TO D REFLECT LOMR FLOODWAY DATA CO EFFECTIVE: March 10, 2016 m UNION COUNTY, NC AND INCORPORATED AREAS N TWELVEMILE CREEK TRIBUTARY 3 Table 10-Limited Detailed Flood Hazard Data 1% Annual Flood Chance Water- Non- Cross Stream Discharge Surface Elevation Encroachment Sections Station2 (cfs) (feet NAVD 88) Width3 (feet) TWELVEMILE CREEK TRIBUTARY 1 041 4,057 497 521.9 12/ 13 044 4,439 497 524.4 4/ 26 048 4,825 497 528.0 23 / 13 052 5,205 497 530.2 11 / 20 054 5,382 463 531.1 16/ 10 056 5,625 463 532.0 13 / 32 059 5,948 463 534.0 18/ 5 062 6,167 463 537.3 14/ 12 TWELVEMILE CREEK TRIBUTARY 2 003 304 652 503.94 10 / 12 005 548 652 503.94 14/ 24 008 800 652 503.94 16/ 4 010 1,039 652 503.94 17/ 4 012 1,237 652 503.94 15 / 8 017 1,699 652 505.4 40/ 19 023 2,331 652 508.1 7/ 6 024 2,435 561 509.7 19/ 10 032 3,230 561 515.4 11 / 6 036 3,567 561 519.7 12/ 17 040 3,972 561 523.0 12/ 24 TWELVEMILE CREEK TRIB TARY 4 003 261 1,322 507.24 5 / 46 006 582 1,322 507.24 5 / 110 012 1,206 1,253 507.24 10/ 90 014 1,420 1,253 507.24 80 / 44 020 2,000 1,253 507.6 A 66 / 57 022 2,232 1,240 509.0 61 / 51 025 2,477 1,240 510.4 80 / 25 029 2,859 1,240 513.6 65 / 10 032 3,166 1 240 517.1 50 / 10 035 3,472 1,240 519.5 42 / 17 038 3,774 1,240 521.9 4 / 52 041 4,126 1,003 526.7 36/ 18 045 4,454 1,003 529.6 45 / 15 048 4,784 1,003 532.8 20 / 50 051 5,051 1,003 534.0 20 / 70 054 5,435 940 538.8 20/ 50 057 5,656 940 540.6 44 / 11 061 6,119 940 544.9 20 / 37 064 6,400 940 547.8 13 / 15 066 6,610 827 550.2 11 / 18 069 6,921 827 553.3 9/ 14 071 7,109 827 555.2 24/ 13 072 7,200 827 555.8 35 / 20 074 7,360 827 557.2 20/ 25 077 7,652 827 560.7 25 / 40 080 7,964 728 562.1 25 / 20 083 8,331 728 569.4 29 / 12 REVISED DATA 1This table reflects all modeled cross sections. Some cross sections shown in this tame may not appear on the map. 2 Feet above mouth. 3Left/right distance from the mapped center of stream to encroachment boundary based on a 1.0 foot or less surcharge (looking downstream). REVISED TO 4Elevation includes backwater effects. REFLECT LOMR EFFECTIVE: March 10, 2016 Page 108 Flood Insurance Study Report: Union County,North Carolina and Incorporated Areas February 19,2014 ife Service iJnventor PRESCOT VILLAGE PHASE 1 1, National W ( t-F.i-• ;lilt • ' . - - I I.% i1/4 . . v..,,,,..:_. ir.. • Ur_.,4 _._ . _ IV N. 1... '5. '5. • ,. .%E:6: I '" I - • ;1 - ....-posp.. e. .,. ...0. ... • , . itipbos.." 4.- - )11. + 1 L -11,IV ' Ill. i Ilk lt. .;, I , . .... rill. ",.. ' ill- N. 1 , • iiir 'y # : , . .-e .e. _ * 4 li t ....„..,. . , . ,...„ .„ .,„ „ .,. i _ y f • --• \II\\I'bimill r I Air -r • 4 ••• • • . -ffir • 4 r f r ti r vim •' 611" f JIM' '- y, ti. Si —�1 :k..., -;.,.............,, ilZi %' vl • Adil. 4 .re -111.1111111111111r- , ..... ... ,. • ...t., 1:7,483 * - ;' . ' = w �� �. * _ 1 .' 0 0.05 0.1 0.2 mi r# - rt . - •i • 0 0.1 0.2 0.4 km e — - Februar 16, 2�17 This map is for general reference only.The US Fish and Wildlife y Service is not responsible for the accuracy or currentness of the base data shown on this map.All wetlands related data should 1 Estuarine and Marine Deepwater 1 1 Freshwater Forested/Shrub Wetland Other be used in accordance with the layer metadata found on the Wetlands Mapper web site. Estuarine and Marine Wetland n Freshwater Pond ❑ Riverine Freshwater Emergent Wetland Lake National Wetlands Inventory(NWI) This page was produced by the NWI mapper 1 I 2 I 3 I4 I 5 Dewberry® 6135 LAKEVIEW ROAD,SUITE 150 CHARLOTTE,NC 28269-2618 �y \\ / NC Reg!T,9907#F-0079 e ��,__...... .—.—.—\ ��� JI f( k 1. e BANK o!� J NORTH de % h fie p4�e b pe.Iw•II Me rlgld yea E 1111111 \111 7 ,/ 1 1 1 1 III Q 1222 H POINT,N E2 DRIVE\ JI �1 HIGH POINT,NC 27265Vo i 1\\\\ J I�JIII 1 I I Prescot Glen Parkway �— I 1I 50 00 200 Extension shall be dedicated as �� IIII ` 1, �= Public Right-of-Way \/ Z \ \ , / f\`� I / '� w Q z r 2 Q 0 \ I 11 1 I, � � = U D 0 < H Et 100-YEAR FLOODWAY ,,7, 11 z0 BASIN i PRE-DEV �� � , - D RAI NAG / �' SEAL AREA=10.93 \I trit, , CN=75 J Tc _58 MIN. KEY PLAN C / — _ / / / APPROXIMATED i SCALE TRAVEL FOR Tc / 11 / 1 "=100' / L / — — B / — TRANSITION FROM 1 / SHEET TO SHALLOW / \ I / CONCENTRATED FLOW - / No. DATE BY Description 1 / 7 / REVISIONS / / / \ \-- / DRAWN BY MV / / \ APPROVED BY WG 9 CHECKED BY SN SN / / DATE 06/27/16 / / l / / / \ TITLE • / / / PRE-DEVELOPMENT 1 / \ i = MAP A / ,___, ____ / / }____ :MI�p // `—' (\\ — _\ — -- PROJECT NO 50083412 �_ E-6 iii_ , / SHEET NO. I-- - J - ,. - -- - • - - PRESCOT VILLAGE PHASE 1 II Dewberry° Bt35 LAKEVIEW ROAD SUITE 150 Proposed Storm System Configuration CHARLOTTE.NC 28289-2818 rtap..m..PM StonnCAO Output for Catchments.4 In rhr intensity,Existing Land tie Condltiont ••••....;, • Gtthme nCe tr Catchment Catchment • OFF M�{ label Scaled Area lames) Rational ntCA ConcenMtl Intensity Outflow Rational \ rr�..rr tia...� E iaaes) en(min) iln/h) Node Flow(Wrest 1 0.11 0.78 0.08 5 4 GA 4 0.34 'I 2 0.26 43.78 021 5 4 a A-3 OM 7. 1222 EASTCHESTER DRIVE ,B 0.07 0.80 0.05 5 4 CI Afi 0.22 HIGH POINT,NC 27205 9 0.07 ¢82 0.06 S 4 CIA-7 0.22 \\ 10 0.4I 0 81 v.34 S 4 CI A•5.1 1.38 S� Prt7SCot Glan Parkway '`� Extension shall be dedicated as : 00ut :::t: ntCA Contentratl Intensity Rationa` = _l 7 0.82 1.21 5 7.03 CIA-7 8.5 \ _ Y r .m.+.�.�. POND W Z FUTURE 42 1.18 181 0.9 5 7.03 D A•5 16.75 // .r��••♦.•.♦'•.♦.♦�.♦.♦.......�♦♦�/ g .71 FUTURE 85 1.53 a 81 1.24 5 7 03 CI A.5.1 8.72 // A. 54Ll.♦♦.♦♦♦...,..♦♦.♦+ J }� 2 FUTURE al 1.31 a78 :02 5 7.17 ..♦,♦♦♦♦+..♦..♦.♦ ¢ FUIUREII6 1.20 079 n.95 5 7 CBA•2 6.68 / ••��♦••♦•♦♦•.♦♦.♦♦ Ei) _ ¢ Q Z / /// 1����+������ FUTURE#1 ��, • 0 a = /�//// / I�♦�.�♦�,�♦� PERVIOUS=0.26 AC ���« co ct o 100-YEAR FLOODWAY / / IMPERVIOUS 1.05AC ��� a z /'U E#6 �/ ./ }'��♦�♦�♦�♦+�� 5 �� :;" BYPASS • /PERVIOUS=0.24 AC // +���.� ' IMPERVIOUS=0.95 AC/ �.����`����� +. �° - EVA BASIN A TO POND // /i ' // ' may'=-: ---,__- DRAINAGE AREA=10.54 // �-- .:_........ e� uo yy•; �.� �_ _ 1 r�� , ,Y,T yrTWll r771 / it � ��� ' / - // Iii 1 ~ a� FUTURE#2 / 11I Ir :r ',v,.. / PERVIOUS=0_24 AC li o#/ I� t / /I ERVIOt�0.94 AC/ A" \ ;') FUTURE#5 - PERVIOUS=0.31 AC 4*0 �il' / / / ` - 1 "=1001 • IMPERVIOUS=1.22 ACC 1 / • / • 44 Legend - ��A IC: i� ��� 41.4_ ' - . \ Catchment Name un / �4 �■V4E I / Il FUTURE#3 I' ' 1 r /' / / / i` " PERVIOUS=0.41 AC I ttalnT nu` mica%Vt1O'Is / h. ll tie. DATE er Cormaly0m)`'' :::: � I/ // // /' // \f1, >ti i;IIIMPERVIOUS=1.64 ACl MAMMY --Ei- i // / / // 1■11 c Avvno,eae. wa F ` 0 111 ;FUTURE ' /' /' ,/ // �iii l oecrrscrEner STI IE aetrne 11 `• dOlt •.Rp •,, / / / / 1 TIRE r �`pQ:•'FE !• 4jy / #4 P05T-DEVELOPMENT i / FUTURE#4 0. ► Z.,.Q- l // / PERVIOUS=0.29 AC / ? i i MAP FUTURE#3 _ L• ; - 1 / / /IMPERVIOUS=1.18 AC1. ,1 / ,� FUTURE#2 :�;• 40 •016 x` 7 / / / // /- / ,' Al. i- FUTURE#5 ''y .O1N•. Q• ` / / / / / / 4 = p ,nuY( �i H F���• / / / / �. , IV PRESC�T i fa / 11, / FUTURE#1 IriMlittot�`El-2i-i1• // // / / __- , • Qtltltt 0' 50' 100' 200 ; E-7 ,/ ,./ FUTURE#6 __--- _ - -- ttttt . tttttttttt�� tttttttt.ttttir s,.iryo Worksheet 2: Runoff curve number and runoff Projecjrn By Date Me-SC-or V�wdc- — RA5S 1�.ip, 62ts 2- 1S - 17 Location Checked Date Check one: kaPresent ❑ Developed 1. Runoff curve number Soil name Cover description CN J Area Product and of hydrologic CN x area group N N N cres (cover type,treatment,and hydrologic condition;percent 1.22 ED. ❑mil (appendix A) impervious;unconnected/connected impervious area ratio) LL ❑ Ch A 3/O o Ceow i Cam« C®r-vvtrtc:AJ ���►�I.e. (PEa- 1c")05?:, b6aA FD Amo GczA, 75 1,4 S77,2 '9 70 5.2 ZZ'f,O rbe2 looms,,, Ca.-MIT D-1-.S 2 I , T PJS Use only one CN source per line Totals » 10,5 S12, Z CN (weighted)= total product = 512, 2 = 15,2 ; Use CN » 75 total area I C. 5 2. Runoff Storm#1 Storm#2 Storm#3 Frequency yr Rainfall, P(24-hour) in Runoff,Q in (Use P and CN with table 2-1,figure 2-1,or equations 2-3 and 2-4) D-2 (210-VI-TR-55,Second Ed.,June 1986) ...,af&_.._ ,isl_ .4 . • • Prescot Village - Phase 1 Aerial View of site c 1998.Approximately 80% of the project site is open fields and 20% is wooded i • • .. ... .- .. - •% .1,.04--,.-..----Afer%.„. • ' c' . • * , . ... I% • ' , , Pc . • ,• ,. ... . , , - •. ..• '4, - ' • • jai- t - ,S. '..t . 4 f ..t. * k,.. , ., ,.. .„..i. ..... 1... „:„ it.. . . ,. ..., . . . ,n*,,. :-., .. . .. ... ...x. • . .. . . .:,..2 . ..,..lit.. : ., . . . , ...... t . .. .. ., - ' , .• , c - .‘ . . .1. 1 *. !... (1. c4, . ... • A0 •wit .... -• or . • • • ., •.: ' 47C.;?"-'4': a . or , I. --•- N.•k•-7116 4k. .. ‘' 4a. . •.,,. A ..74e..4-,k- ' , . 4 • i , N . :.. , - ' . ,. --.. .....40, • .4, . ,,,i, ..,,e , ** !•• \ . .,.. ...tkAt .. .1h•lei s - ' , ... • s ''S) • ' . . . , . Ilki * • * .... - , ,,,„, ,•-•._ • ., -. I 4 PI, • • .‘ 'Peek - Nbs 4&.. -7• 1. .. ( • • -Ai.: kir S. • ...r , . " a . rodegigagisel- . t. )44, ,'4., i I 1 ti 7 Pir '4w4411t - ,,,,,,-4 - 4;.•; —•••••.-- 11.... 16 -41t,01) ..- aloft 1r . , 0 le p-eftir Illie....' - 4. . it 46414 v .1 •'' . ••• _.••-•' , 41Ik 4,s P V ,.-•'i-' 1: ' ''.s IP • •.: it; ' - ......i_-. • • is . .. . .•••-,' ,,..• , Ir ' 5: 'N' Google'eaT4.40 Ni vs. . ,ts ,,,. r-- * :ars' ... . * ... * iv N ,. ...-- ii ' ''•k' 'b.' ' • Image U S.C '*ological Survey .. • • .• ,:` ' •• tc A Ma *110', — .. , -- , - - I 1000 ft I Worksheet 2: Runoff curve number and runoff Project By Date 1-7?-0. -Orr /11.1-.&C 2c714•6&C 1 0. & 6i2b*Ibr 3. 31 . 1/ Location Checked Data k1(,x, J Check one: El Present (Developed -1. Runoff curvenumbe _.._ _T _ .r.. _ Soil name Cover description CN J Area Product and I of hydrologic CN x area group N 2 z Oacres (cover type,treatment,and hydrologic condition;percent "' © 2 t�'(appendix A) impervious;unconnected/connected impervious area ratio) 4 i ❑%I Ch-A ,,i2 1+a17 1to0 7 4 _A - °�� £5• �'L S8o,2 a ts E� SP -�1)Cs�trrra Got 1. 48 go,3 C to NC-Lb. $ Za% oF 1.4, rs,c, - G 1-i ecx)5 �S 2 �� zso mad,n So% c 5-2, r c� Ss C L . OFt-, pA.,c-E - C-raA 6s►.19tfioa 14. 044, 44`�, ' , _ r of 3,2 c.c_ Tb132 trtpow,00s 512 _ 6 cc0.sti� is 0. ti'a 1G.1 b52_ , ,J i —&lop Cto rri o, ` aTar(', 20% .2 .. -_ - Use only one CN source per line • Totals 10 10,8 1 .°1 CN (weighted)= total product = get).9 = e)►.4 • total area 10.$ Use CN * c f 1 Storm#1 Storm#2 Storm#3 Frequency yr Rainfall, P(24-hour) in i Runoff,0 in (Use P and CN with table 2-1,figure 2-1,or ` equations 2-3 and 2-4) D-2 (210-VI-TR-55,Second Ed.,June 1986) Worksheet 3: Time of Concentration (To) or travel time (Tt) Project ree.s car By Date —15 - I/ I l.I�IS C3�t- Pj�4Te, Location C ^ Checked Date Check one: Present ❑ Developed Check one: lTc ❑Tt through subarea Notes: Space for as many as two segments per flow type can be used for each worksheet. Include a map, schematic, or description of flow segments. Sheet flow (Applicable to Tc only) Segment ID 1. Surface description (table 3-1) WOODS 2. Manning's roughness coefficient, n (table 3-1) 0.40 3. Flow length, L(total L t 300 ft) ft SOO 4. Two-year 24-hour rainfall, P2 in , 2 5. Land slope,s ft/ft 0, 0 2 6. Tt= 0.007 (nL) o.8 Compute Tt hr a 873 + = 0 813 P2 0.5 s0.4 Shallow concentrated flow Segment ID 'CzjC, 7. Surface description (paved or unpaved) L)►J(7/ 46C) 8. Flow length, L ft `50 9. Watercourse slope,s ft/ft 0.0I 10. Average velocity, V(figure 3-1) ft/s I (p 11. Tt= L Compute Tt hr O, C 2 -I- = 0,09 Z 3600 V Channel flow - Segment ID 12. Cross sectional flow area, a ft2 13. Wetted perimeter, pw ft 14. Hydraulic radius, r= a Compute r ft 15 Channel slope, s Pw ft/ft 16. Manning's roughness coefficient, n 17. V= 1.49 r 2/3 s 1/2 Compute V ft/s n 18. F►uw length, L ft 19. Tt= L Compute Tt hr 3600 V 20. Watershed or subarea Tc or Tt(add Tt in steps 6, 11, and 19) Hr 0•g(,,5 5g pi,N (210-VI-TR-55,Second Ed.,June 1986) D-3 Hydraflow Rainfall Report Hydraflow Hydrographs Extension for AutoCAD®Civil 3D®2016 by Autodesk, Inc.v10.5 Friday,02/17/2017 Return Intensity-Duration-Frequency Equation Coefficients(FHA) Period (Yrs) B D E (N/A) 1 0.0000 0.0000 0.0000 2 44.7516 10.0000 0.8070 3 0.0000 0.0000 0.0000 5 61.3997 12.0000 0.8035 10 83.3331 15.0000 0.8256 25 97.3148 15.0000 0.8254 50 104.2990 15.0000 0.8179 100 116.4790 15.0000 0.8222 File name: IDF-Curve.IDF Intensity= B/(Tc+ D)AE Return Intensity Values(in/hr) Period (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 5.03 3.99 3.33 2.88 2.54 2.28 2.07 1.90 1.76 1.64 1.54 1.45 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 6.30 5.12 4.35 3.79 3.37 3.05 2.78 2.57 2.38 2.23 2.09 1.98 10 7.03 5.84 5.03 4.43 3.96 3.60 3.30 3.05 2.84 2.66 2.50 2.36 25 8.21 6.83 5.87 5.17 4.63 4.20 3.85 3.56 3.32 3.10 2.92 2.76 50 9.00 7.50 6.46 5.69 5.10 4.64 4.25 3.93 3.66 3.43 3.23 3.05 100 9.92 8.26 7.11 6.26 5.61 5.09 4.67 4.32 4.02 3.76 3.54 3.35 Tc=time in minutes.Values may exceed 60. Precip.file name:P:\50083412\Tech\Civil\Hydro\Precip-NC.pcp Rainfall Precipitation Table(in) Storm Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 2.58 3.12 0.00 4.32 4.80 5.76 6.48 6.96 SCS 6-Hr 1.00 2.28 0.00 0.00 3.72 4.38 4.92 5.34 Huff-1st 0.00 1.55 0.00 2.75 4.00 5.38 6.50 8.00 Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 1.75 0.00 2.80 3.72 5.25 6.00 7.10 1 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 3.720 cfs Storm frequency = 1 yrs Time to peak = 752 min Time interval = 2 min Hyd. volume = 27,684 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 2.58 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 -- 1 Year Q (cfs) 4.00 - 4.00 $ 3.00 - 3.00 2.00 - 2.00 1.00 - 1.00 0.00 - 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 2 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 3.093 cfs Storm frequency = 1 yrs Time to peak = 146 min Time interval = 2 min Hyd. volume = 12,886 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 1.00 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3 -- 1 Year Q (cfs) 4.00 - 4.00 3.00f .%. %-'-....'""ft.-.-4..--""•.---.— 3.00 2.00 - 2.00 1.00 - 1.00 A0.00 - 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 3 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 0.019 cfs Storm frequency = 1 yrs Time to peak = 368 min Time interval = 2 min Hyd. volume = 572 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 508.34 ft Reservoir name = Regional Detention Max. Storage = 68,059 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 -- 1 Year Q (cfs) 4.00 - 4.00 3.00 I 3.00 2.00 2.00 1.00 1.00 0.00 - 0.00 0 240 480 720 960 1200 1440 1680 1920 Time (min) — Hyd No. 4 Hyd No. 3 TTTTTTII Total storage used = 68,059 cuft Pond Report 4 Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Pond No. 1 - Regional Detention Pond Data Contours-User-defined contour areas.Conic method used for volume calculation.Begining Elevation=501.50 ft Stage/Storage Table Stage(ft) Elevation(ft) Contour area(sqft) Incr.Storage(cuft) Total storage(cuft) 0.00 501.50 00 0 0 0.50 502.00 5,449 908 908 1.50 503.00 6,756 6,090 6,998 2.50 504.00 9,551 8,112 15,111 3.50 505.00 10,545 10,043 25,154 4.50 506.00 11,535 11,035 36,189 5.50 507.00 12,914 12,217 48,406 6.00 507.50 14,236 6,784 55,190 6.50 508.00 15,324 7,388 62,577 7.50 509.00 17,332 16,316 78,894 8.00 509.50 18,494 8,954 87,848 8.50 510.00 19,610 9,524 97,371 9.50 511.00 21,846 20,716 118,087 10.50 512.00 24,174 22,998 141,085 11.50 513.00 26,571 25,361 166,446 12.50 514.00 29,631 28,084 194,530 Culvert/Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise(in) = 42.00 2.50 8.00 0.00 Crest Len(ft) = 24.00 4.00 Inactive 0.00 Span(in) = 42.00 2.50 8.00 0.00 Crest El.(ft) = 511.74 511.18 0.00 0.00 No.Barrels = 1 1 1 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El.(ft) = 502.96 507.50 509.14 0.00 Weir Type = 1 Rect --- --- Length(ft) = 60.00 0.00 0.00 0.00 Multi-Stage = Yes Yes No No Slope(%) = 1.16 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in/hr) = 0.000(by Contour) Multi-Stage = n/a Yes Yes No TW Elev.(ft) = 508.30 Note:Culvert/Orifice outflows are analyzed under inlet(ic)and outlet(oc)control. Weir risers checked for orifice conditions(ic)and submergence(s). Stage(ft) Stage/ Discharge Elev(ft) 14.00 - 515.50 • 12.00 • • 513.50 10.00 • • 511.50 8.00 509.50 • • 6.00 507.50 4.00 505.50 2.00 • • 503.50 • • 0.00 501.50 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 110.0 Total Q Discharge(cfs) 5 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 5.910 cfs Storm frequency = 2 yrs Time to peak = 750 min Time interval = 2 min Hyd. volume = 41,268 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 3.12 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 --2 Year Q (cfs) 6.00 6.00 5.00 5.00 1 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 J \ ,.....„..._ 0.00 - __- 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 6 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 12.77 cfs Storm frequency = 2 yrs Time to peak = 144 min Time interval = 2 min Hyd. volume = 50,635 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 2.28 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3 --2 Year Q (cfs) 14.00 - 14.00 12.00 - 12.00 10.00 - 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 - 2.00 2 \0.00 - - 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 7 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 1.252 cfs Storm frequency = 2 yrs Time to peak = 362 min Time interval = 2 min Hyd. volume = 38,321 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 509.86 ft Reservoir name = Regional Detention Max. Storage = 94,740 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 --2 Year Q (cfs) 14.00 - 14.00 12.00 - 12.00 10.00 10.00 8.00 8.00 6.00 6.00 4.00 - 4.00 2.00 - 2.00 0.00 - 0.00 0 360 720 1080 1440 1800 2160 2520 2880 3240 3600 3960 Time (min) Hyd No. 4 Hyd No. 3 111111111 Total storage used = 94,740 cuft 8 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 13.88 cfs Storm frequency = 10 yrs Time to peak = 750 min Time interval = 2 min Hyd. volume = 90,782 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 4.80 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 -- 10 Year Q (cfs) 14.00 - 14.00 12.00 - 12.00 10.00 - - - 10.00 8.00 8.00 6.00 6.00 4.00 - 4.00 2.00 - 2.00 0.00 - - 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 9 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 24.49 cfs Storm frequency = 10 yrs Time to peak = 144 min Time interval = 2 min Hyd. volume = 98,640 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.72 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3 -- 10 Year Q (cfs) 28.00 28.00 24.00 24.00 20.00 20.00 16.00 16.00 12.00 12.00 8.00 ) 8.00 4.00 4.00 0.00 1 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 10 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 2.588 cfs Storm frequency = 10 yrs Time to peak = 330 min Time interval = 2 min Hyd. volume = 86,326 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 511.21 ft Reservoir name = Regional Detention Max. Storage = 122,934 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 -- 10 Year Q (cfs) 28.00 28.00 24.00 24.00 20.00 20.00 16.00 16.00 12.00 12.00 8.00 8.00 4.00 4.00 0.00 — 0.00 0 360 720 1080 1440 1800 2160 2520 2880 3240 3600 Time (min) Hyd No. 4 Hyd No. 3 111111111 Total storage used = 122,934 cuft 11 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 18.86 cfs Storm frequency = 25 yrs Time to peak = 750 min Time interval = 2 min Hyd. volume = 122,145 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 5.76 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 --25 Year Q (cfs) 21.00 21.00 $ 18.00 18.00 15.00 15.00 12.00 12.00 9.00 9.00 6.00 6.00 3.00 3.00 0.00 - 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 12 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 29.87 cfs Storm frequency = 25 yrs Time to peak = 144 min Time interval = 2 min Hyd. volume = 121,321 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 4.38 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3 --25 Year Q (cfs) 30.00 30.00 25.00 25.00 20.00 20.00 15.00 15.00 10.00 10.00 5.00 5.00 0.00 — 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 13 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 4.862 cfs Storm frequency = 25 yrs Time to peak = 226 min Time interval = 2 min Hyd. volume = 109,007 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 511.48 ft Reservoir name = Regional Detention Max. Storage = 129,096 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 --25 Year Q (cfs) 30.00 30.00 25.00 25.00 20.00 20.00 15.00 15.00 10.00 10.00 5.00 5.00 0.00 0.00 0 360 720 1080 1440 1800 2160 2520 2880 3240 Time(min) Hyd No. 4 Hyd No. 3 111111111 Total storage used = 129,096 cuft 14 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 22.71 cfs Storm frequency = 50 yrs Time to peak = 750 min Time interval = 2 min Hyd. volume = 146,593 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 6.48 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 -- 50 Year Q (cfs) 24.00 24.00 1 20.00 20.00 16.00 16.00 12.00 12.00 8.00 8.00 4.00 4.00 0.00 — 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 15 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 34.25 cfs Storm frequency = 50 yrs Time to peak = 144 min Time interval = 2 min Hyd. volume = 140,049 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 4.92 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3 -- 50 Year Q (cfs) 35.00 35.00 30.00 30.00 25.00 25.00 20.00 20.00 15.00 15.00 10.00 ____ 10.00 5.00 5.00 --\0.00 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 16 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 7.099 cfs Storm frequency = 50 yrs Time to peak = 192 min Time interval = 2 min Hyd. volume = 127,735 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 511.65 ft Reservoir name = Regional Detention Max. Storage = 133,051 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 -- 50 Year Q (cfs) 35.00 35.00 30.00 30.00 25.00 25.00 20.00 20.00 15.00 15.00 10.00 10.00 5.00 ,\ 5.00 0.00 - 0.00 0 240 480 720 960 1200 1440 1680 1920 2160 2400 2640 2880 Time (min) Hyd No. 4 Hyd No. 3 111111111 Total storage used = 133,051 cuft 17 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 1 Pre-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 25.32 cfs Storm frequency = 100 yrs Time to peak = 750 min Time interval = 2 min Hyd. volume = 163,235 cuft Drainage area = 10.930 ac Curve number = 75* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 58.00 min Total precip. = 6.96 in Distribution = Type II Storm duration = 24 hrs Shape factor = 484 *Composite(Area/CN)=[(3.260 x 61)+(7.980 x 74)+(3.660 x 74)]/10.930 Pre-Dev Basin A Q (cfs) Hyd. No. 1 -- 100 Year Q (cfs) 28.00 28.00 0- 24.00 24.00 20.00 20.00 16.00 16.00 12.00 12.00 8.00 8.00 4.00 4.00 0.00 .'%"----- 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 Hyd No. 1 Time (min) 18 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 3 Post-Dev Basin A Hydrograph type = SCS Runoff Peak discharge = 37.64 cfs Storm frequency = 100 yrs Time to peak = 144 min Time interval = 2 min Hyd. volume = 154,693 cuft Drainage area = 10.540 ac Curve number = 91* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 5.34 in Distribution = SCS 6-Hr Storm duration = 6.00 hrs Shape factor = 484 *Composite(Area/CN)=[(8.990 x 98)+(2.250 x 61)]/10.540 Post-Dev Basin A Q (cfs) Hyd. No. 3-- 100 Year Q (cfs) 40.00 - 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00 - - 0.00 0 60 120 180 240 300 360 420 Hyd No. 3 Time (min) 19 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk®Civil 3D®2019 by Autodesk, Inc.v2020 Thursday,08/20/2020 Hyd. No. 4 Pond A Hydrograph type = Reservoir Peak discharge = 9.980 cfs Storm frequency = 100 yrs Time to peak = 174 min Time interval = 2 min Hyd. volume = 142,379 cuft Inflow hyd. No. = 3 - Post-Dev Basin A Max. Elevation = 511 .78 ft Reservoir name = Regional Detention Max. Storage = 136,011 cuft Storage Indication method used. Wet pond routing start elevation=507.50 ft. Pond A Q (cfs) Hyd. No. 4 -- 100 Year Q (cfs) 40.00 40.00 30.00 30.00 20.00 - 20.00 10.00 10.00 0.00 0.00 0 240 480 720 960 1200 1440 1680 1920 2160 2400 Time (min) Hyd No. 4 Hyd No. 3 TTTTTTII Total storage used = 136,011 cuft WET POND CALCULATIONS Dewberry Engineers Inc. Project: Prescot Village - Phase 1 Location/Governing Authority: Town of Waxhaw Inception Date: 3-Apr-17 Revision Date 3-Aug-20 Drainage Area (Area draining to Pond) = 10.54 Acres Percentage of Impervious Area (Post-Development) = 77.8% Post-Development Curve Number(weighted) = 91 Rv=0.05+0.9 * IA DV= 3630 * RD * RV* A Rv= 0.7502 DV= 28703 cf Orifice Area (A) = 2.5 in Q=CdA(2gHo/3)^0.5 Cd= 0.6 A= 0.0341 sf Orifice Invert 509.14 ft Permanent Pool Eleavation 507.5 ft Ho= 1.64 ft Ho/3 0.55 ft Q= 0.121 cfs Drawdown Time (DV/Q) = 2.74 days PRESCOT VILLAGE STORMWATER POND CONTROL STRUCTURE BUOYANCY CALCULATIONS Given: Proposed structure is a 6'x 6' precast box structure with 5" thick walls. The structure base is 9' x 9'x 2' (deep). The depth of the riser is 11.71'.The structure has a 42" RCP penetration and a 4' x 0.61' notch for flow control. Unit Weight of Water: 62.4 #/cf Box Dimensions: A: 6.00 ft B: 6.00 ft Unit Weight of Concrete: 150.0 #/cf C: 6.83 ft D: 6.83 ft E: 9.00 ft Calculate Uplift: F: 9.00 ft Riser Height(h 1): 9.71 ft Outside Dimensions of Box: Base Thickness (h 2): 2.00 ft C: 6.83 feet D: 6.83 feet Volume of Voids: 6.90 cf h1: 9.71 feet Dimensions of Base: C E: 9.00 feet F: 9.00 feet -A- h2: 2.00 feet F BI p Weight of Displaced Water: 1 I Uplift= [(C x D x h1)+ (E x F x h2)] x Weight of Water 11 i Uplift= 38,374 lbs F� E Calculate Structure Weight Outside Dimensions of Box: C: 6.83 feet D: 6.83 feet Inside Dimensions of Box: A: 6.00 feet B: 6.00 feet Riser Height (h1): 9.71 feet Dimensions of Base: E: 9.00 feet F: 9.00 feet h2: 2.00 feet Structure Weight= Volume of Concrete x Unit Weight of Concrete = {[(Area Out Dims-Area In Dims)x Riser Height] + [Area Base x Thick] -Voids}x Unit Weight Conc {[((C x D) - (A x B))x h1] + [E x F x h2] -Voids}x Unit Weight of Concrete Structure Weight= 38,775 lbs Does the weight of the structure exceed the uplift forces? YES Additional Design Required to Counteract Uplift? NO PIPE TABLE Length Capacity Slope Manning's Flow Invert(Upstream) Invert Velocity Start Node Stop Node (Scaled) Conduit Description (ft/ft) n (ft3/s) (ft) (Downstream)(ft) (ft/s) (Full Flow) (ft) (ft;/s) CI A-7 CI A-6 30.3 Circular Pipe-18 in 0.01 0.013 8.72 512.57 512.26 6.7 I 10.625 CI A-6 CI A-5 211.2 Circular Pipe-30 in 0.02 0.013 20.194 511.26 507.05 10.7 57.906 CI A-5 CI A-4 70.9 Circular Pipe-42 in 0.005 0.013 37.4 506.18 505.82 7.5 71.209 CI A-4 CI A-3 14.1 Circular Pipe-42 in 0.005 0.013 43.542 505.72 505.65 7.7 70.853 CI A-3 CB A-2 195.1 Circular Pipe-48 in 0.005 0.013 44.638 505.15 504.17 7.8 101.805 CB A-2 HW A-1 71 Circular Pipe-54 in 0.009 0.013 48.15 503.67 503 10 190.993 CI A-5.1 CI A-5 30.3 Circular Pipe-24 in 0.01 0.013 11.079 507.35 507.05 7.1 22.497 10 year HGL 525.00 • CI A-6 Rim: 518.45 ft Invert: 511.26 ft CI A-7 Rim: 517.96 ft Inveirt: 512.57 ft 520.00 • CI A-4 Rim: 514.47 ft Invert: 505.72 ft CB A-2 CI A-5 Rim: 514.01 ft CI A-3 Rim: 513.43 ft / Inve t: 503.67 ft Invert: 506.17 ft Rim: 514.60 ft Invert: 505.15 ft 515.00 0 HW A-1 Rim: 509.00 ft > Invert: 503.00 ft RCP w 510.00 0.020 it 211.2 18" RCP 48" RCP 30.3 ft (0 0.010 ft/ft 195.1 ft @ 0.005 ft/ft 505.00 IS\- 42" RCP 70.9 ft Q 0.005 ft/ft 42" RCP '-54" RCP 14.1 ft ®0.005 ft/ft 71.0 ft Q 0.009 ft/ft 500.00 - -0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+00 Station (ft) 520.00 CI A-5 CI A-5.1 Rim:I513.43 ft Rim: 513.43 ft Invert: 506.17 ft Invert: 507.35 ft 515.00 c .2 510.00 0 a) > 11111 505.00 24" RCP 30.3 ft © 0.010 ft/ft LEGEND GROUND - 500.00 HGL 10YR -0+50 0+00 0+50 1+00 PROP PIPE/STRUCTURE Station (ft) opt Oaf Dewberry® SEDIMENT AND EROSION CONTROL NARRATIVE FOR Prescot Village — Phase 1 PROJECT DESCRIPTION: The purpose of this project is to develop five (5) commercial lots with supporting infrastructure (roads, water, sewer, stormwater, street lighting, sidewalks, & landscaping) on approximately 10.9 acres. The stormwater system will be developed as a master system to collect stormwater runoff from the commercial lots and route the same to a centralized pond for further treatment and controlled release. The general stormwater concept allows for each lot to be developed with up to a maximum of 80 percent impervious area. SITE DESCRIPTION: The site's topography generally includes slopes of 1 to 2 percent. The site sheet flows from the south to the north towards Twelve Mile Creek. The current site condition is grassed with some small saplings scattered across the site. ADJACENT PROPERTY: Land use surrounding the site includes: undeveloped property to the north, separated by Twelve Mile Creek; undeveloped property to the ease, separated by Providence Road (NC Hwy 16); undeveloped contiguous land to the south, with some light commercial south of Pine Oak Road; and, undeveloped contiguous land to the west, with a residential subdivision west of an unnamed stream. SOILS: The soils in the Prescot Village — Phase 1 site are predominately mapped as: ChA Chewacla, a silty loam; BaC Badin, a channery silty loam; and, TbB2 Tarrus, a gravelly silty clay loam. PLANNED EROSION AND SEDIMENT CONTROL PRACTICES: 1) TEMPORARY INLET PROTECTION: Inlet protection shall be provided for all stormwater catch basins, drop inlets, curb inlets, etc. as indicated in the plans for the duration of construction activities until the site has achieved adequate stabilization to prevent sediment transport. In addition, inlet protection shall be placed on any structures in the disturbed area as well as structures outside the construction zone that may be susceptible to runoff or flooding occurring in the construction zone. 2) VEGETATIVE COVER: All disturbed areas which are not covered with concrete or asphalt shall be seeded and mulched according to the "Seeding Schedule". Dewberry 3) WATER REQUIREMENTS: A minimum of 1" of rainfall a week (if not supplied naturally, the Contractor shall supply the remaining amount of water until the ground cover has been established). CONSTRUCTION SCHEDULE: 1) Obtain erosion control plan approval and applicable permit. 2) Flag work limits. 3) Install temporary inlet protection. 4) Call for on-site inspection by the Engineer of Record and Town of Waxhaw. 5) Install 30-inch RCP as indicated on the plans. 6) Seed and mulch all necessary areas according to the "Seeding Schedule". 7) Inspect all erosion and sediment control devices bi-weekly or after every rainfall event. 8) After site is stabilized call for inspection by the Engineer of Record and the Town of Waxhaw. 9) After the inspection approval remove all temporary measures and install permanent vegetation on disturbed areas. 10) Upon established and stabilized vegetation, call for final inspection by the Engineer of Record and the Town of Waxhaw. (Note: estimated time before final stabilization — 6 months) MAINTENANCE PLAN: 1) All erosion and sediment control practices will be checked for stability and operation following every rainfall event producing runoff, but in no case less than once every two weeks. Any needed repairs will be made immediately to maintain all practices as designed. 2) Sediment shall be removed from the inlet protection devices and repaired as necessary to maintain a barrier. 3) All seeded areas will be fertilized, reseeded as necessary, and mulched according to specifications in the "Vegetative Plan" to maintain a healthy dense vegetative cover. 4) After the first week, water as necessary to maintain adequate moisture at the root zone to allow for germination of seed. 1111 Dewberry VEGETATIVE PLAN: Seedbed Preparation: SP-1 Fill slopes 3:1 or steeper shall have erosion control blankets installed and be seeded with a manual hand seeder (permanent seedings). 1) Roughen slope faces by making grooves 2" to 3" deep, perpendicular to the slopes. 2) Spread lime and fertilizer evenly over slopes at the recommended rates, apply the erosion control blankets, and seed at the recommend rates. SP-2 Fill slopes 3:1 or steeper (temporary seeding) 1) Leave a loose and uncompacted surface. Remove large clods, rocks, and debris which might hold the erosion blanket above the surface. 2) Spread lime and fertilizer evenly at recommended rates. 3) Incorporate amendments by roughing or grooving the soil surface on the contour. SP-3 High-maintenance turf 1) Remove rocks and debris that could interfere with tillage and the production of a uniform seedbed. 2) Apply lime and fertilizer at recommended rates. Spread evenly and incorporate to a depth of 2" to 4" with farm disk or chisel plow. 3) Loosen the subgrade immediately prior to spreading topsoil by dishing or scanty to a depth of at least 2". 4) Spread topsoil to a depth of 2" to 4" and cultipack. 5) Disk or harrow and rake to produce a uniform and well-pulverized surface. 6) Loosen surface just prior to applying seed. Seeding Methods: SM-1 Fill slopes steeper than 3:1 (permanent seedings) Use a manual hand seeder to apply seed and fertilizer over the erosion blanket SM-2 Fill slopes less than 3:1 1) Broadcast seed at the recommended rate with a cyclone spreader or cultipack seeder. 2) Rake seed into the soil and lightly pack to establish good contact. Mulch: M-1 Steep slopes greater than 3:1 In mid-summer, late fall, or winter, apply 100 lb/100 ft2 grain straw and tack with netting staple to the slope. In the spring or early fall use erosion control blanket prior to seeding. Do not install mulch. M-1 Grass-lined swales Install Erosion control blankets in the channel by extending up the exposed bank and securing according to the manufacturer's specifications. '''; Dewberr Maintenance: MA-1 Re-fertilize in late winter or early spring the following year. Mow as desired. MA-2 Keep mowed to a height of 2" to 4". Fertilize with 40 lb/acre (1 Ib/1,000 ft2) nitrogen in winter and again the following fall. MA-3 Inspect and repair mulch or erosion blanket. Re-fertilize in late winter or the following year with 150 lb/acre 10-10-10 (3.5 lb/1,000 ft2). Mow regularly to a height of 3" to 4". MA-4 Topdress with 10-10-10 fertilizer if growth is not fully adequate. MA-5 Topdress with 50 lb/acre (1 lb/1,000 ft2) nitrogen in March. If cover is needed through the following summer, overseed with temporary seed mix. GENERAL DISTURBANCE AND CONSTRUCTION NOTES: Disturbance shall be limited to the areas of installation. The location of the planned infrastructure work provides substantial depth of buffer to prevent sediment transport offsite, however, temporary sediment & erosion control BMPs will be employed to contain sediment within the areas of disturbance. Construction access to the site shall be from the south where the intersection was established on Prescot Glen Parkway Extension to access this area. Inlet protection shall be provided for all stormwater catch basins, drop inlets, curb inlets, etc. as indicated in the plans for the duration of construction activities until the site has achieved adequate stabilization to prevent sediment transport. In addition, inlet protection shall be placed on any structures in the disturbed area as well as structures outside the construction zone that may be susceptible to runoff or flooding occurring in the construction zone. Dewberry Get, IVAX#1A EROSION CONTROL FINANCIAL RESPONSIBILITY FORM Maya g4(leb.u.100 No person may initiate any land-disturbing activity as defined in Chapter 159 of the Town of Waxhaw Town Code prior to completion of this form, and an applicable and acceptable erosion and sedimentation control plan has been approved by the Development Services Department. (Please type or print) Part I Name of Project:Prescot Village Phase 1 Address where land disturbing activity will take place: 3300 Providence Road Intersection of Providence Rd&Prescat Glen Pkwy) Waxhaw,North Carolina Approximate date disturbing activity will commence: 15 April 2017 Purpose of development(residential,commercial,industrial,etc.): Commercial Total acreage of land to be disturbed or uncovered: 10.54 Amount of fee enclosed(show calculation): $961.40(Financial Reap..inc.10%Tech.Fee) $137.50(Floodplain Derr.Per.,Ind 10%Tech.Fee) Agent to contact should sediment control issues arise during land disturbing activity: Name: Mark Walsh-Bank of North Carolina Address: 3980 Premier Drive,Suite 130,High Point State: North Carolina Zip code:27265 Phone: 336.688.3504 Email:MWALSH@BNCBANKING.COM Landowner(s): Name: Bank of North Carolina(Glenn Raddey,Senior Vice President,Special Assets) Address: 3980 Premier Drive,Suite 130,High Point State: North Carolina Zip code:27265 Phone: 336.905.8916 Email:GRACKLEY@BNCBANKING.COM Name: Address: State: Zip code: Phone: Email: Indicate Book and Page where deed of the property where land disturbing activity will take place is recorded: Book: 5625 Page: 212 Book: Page: 1 .toVi op '441";;;\.b.- AMIA EROSION CONTROL FINANCIAL RESPONSIBILITY FORM �,s bhry}4r,kxnN" Book: Page: Book: Page: Indicate tax map and parcel number of the property where land disturbing activity will take place is recorded: Tax Map:06165003A Parcel: Tax Map: Parcel: Tax Map: Parcel: Tax Map: Parcel: Part II Person(s)or firm(s)who are financially responsible for the land disturbing activity: Name: Bank of North Carolina(Glenn Rackley,Senior Vice President,Special Assets) Address: 3980 Premier Drive,Suite 130,High Point State: North Carolina Zip code:27265 Phone: 336.905.8916 Email:GRACKLEY@BNCBANKING.COM Name: Address: State: Zip code: Phone: Email: Name: Address: State: Zip code: Phone: Email: If the financially responsible party is not a resident of North Carolina,give the name and address of a North Carolina Agent: Name: Address: State: Zip code: Phone: Email: If the financially responsible party is a partnership or other person engaging in business under an assumed name,attach a copy of the Certificate of Assumed Name. If the financially responsible party is a corporation,give the name and address of the registered agent. Name: Glenn Raddey,VP-Bank of North Carolina Address: 3980 Premier Drive,Suite 130,High Point State: North Carolina Zip code:27265 Phone: 336.905.8916 Email:GRACKLEY@BNCBANKING.COM 2 _ W {� AX!!A'� EROSION CONTROL FINANCIAL RESPONSIBILITY FORM f W Tr8v, yr � The above information is true and correct to the best of my knowledge and belief and was provided by me under oath. I agree to provide corrected information should there be any change in the information provided herein. (This form must be signed by the financially responsible person if an individual or his attorney in fact, or if not an individual, by an officer, director, partner, or registered agent with authority to execute instruments for the financially responsible erson) Name: Lt, Glenn Rackley,SVP-Bank of North Carolina Address: 3980 Premier Drive,Suite 130,High Point State: North Carolina Zip code:27265 Phone: 336.905.8916 Email:GRACKLEY@BNCBANKING.COM n , LAs,, , ce. ,-,4 Notar Public of 6 i County, North Carolina, do hereby certify that Q,ylh CCV IPA/ sonally peared before me this day, and being duly sworn, stated that in his/presence en CL` (signed) (acknowledged the execution of) the foregoing instrument. y ,S�5i� �y �hand and of icialeal, this the day of.1).p , 20 (� . P s 17, 0(affiiiiN.Sea 0.). LOla s _ Notary Public 73 PUBL C - % My comrrii n expires �- (fl , 20 i�. •,0 ,„ril O`'`'ACC'```,,,,,. • N•Ii11111/1tl 3