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HomeMy WebLinkAbout20080645 Ver 1_Application_20080407• Apri13, 2008 Division of Water Quality 401/Wetlands Unit 1650 Mail Service Center Raleigh, NC, 27699-1650. Re: PCN Barnet Park Lenoir County 08 0 645 Please find enclosed 7 copies of the PCN application and supporting documentation and a check for $200 dollars for the application fee. A copy of this information has also been provided to Tracey Wheeler at the US Army Corp of Engineers, Washington Regional Office. Please feel free to contact me if you have any questions or need any additional information. Sincerely, Michelle S. Clements, PE The East Group, PA cc: Mike Hill -Barnet Rhonda Barwick -City of Kinston Enclosures o ~~~aaC p APR 7 2008 DENR - WATER (lUAi1TY 1NETLANDS ANO STORMWATER BRANCH THE GROUP Corporate Office PO Box 7305 324 S Evans St Greenville NC 27835 www.eastgroup.com Tel 252.758.3746 Fax 252.830.3954 ENGINEERING ARCFIITECTURE SURVEYING TECHNOLOGY Since 1975, servicing clients worldwide +l Office Use Only: Form Version March OS USACE Action ID No. DWQ No. ~ 8 X 6 4 5 (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. Processing 1. Check all of the approval(s) requested for this project: ^ Section 404 Permit ® Riparian or Watershed Buffer Rules ^ Section 10 Permit ^ Isolated Wetland Permit from DWQ ^ 401 Water Quality Certification ^ Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: Not Requested 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ^ Buffer Rules variance only 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: ^ No payment proposed 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ^ Project located in Lenoir County ~, , 4 II. Applicant Information D ~~~ ~ ,~~ 1. Owner/Applicant Information APR ~ 2008 Name: Scott Stevens, City Mana eg r, Cit~ofKinston ,~~~rt ., Mailing Address: 207 E. King Street ~F~~S10RMW Kinston, NC 28502 `~ Telephone Number: 252-939-3110 Fax Number: 252-939-3388 E-mail Address: Scott. stevensna,ci. knston. nc. us 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Michelle Clements Company Affiliation: The East Group, PA Mailing Address: 324 Evans Street Greenville, NC 27858 Telephone Number: 252-758-3746 Fax Number: 252-830-3954 E-mail Address: mchelle. clements(a~eastgroup. com Page 5 of 15 III. Project Information 5 Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: Barnet/Park Drainage 2. T.LP. Project Number or State Project Number (NCDOT Only): NONE 3. Property Identification Number (Tax PIN): 450502598020 Record No. 1570 4. Location County: Lenoir Nearest Town: Kinston Subdivision name (include phase/lot number): None Directions to site (include road numbers/names, landmarks, etc.): Take NC 11 South from Greenville to US 258. Take a right onto Vernon Avenue. Continue west on Vernon Avenue to Hull Roa~ust past the Caswell Center. Turn right onto Hull Road. Continue north on Hull Road to Hillcrest Road. Turn left on Hillcrest Road and continue south to Sand Clay Road. Turn right onto Sand Clay Road. Project area is on the right side of Sand Clay Road at the east edge of Barnett Park. Site coordinates (For linear projects, such as a road or utility line, attach separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35.2764 °N 77.6400 6. Property size (acres) 31.91 AC 7. Name of nearest receiving body of water: Neuse River 8. River Basin: (Note -this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The site area for this project is abortion of Barnett Park off a sheet that oW Page 6 of 15 of Sand Clay Road in the northwest portion of Kinston. The drainage area for this parcel is approximately 410 AC and is a mix of_park land, residential, woods, and commercial development. (See Attachment 1) The drainage follows a stream to an existing 84-inch culvert beneath Sand Clay Road. Duringperiods of heavy rain, the downstream commercial and residential developments are,flooded. Soils within this area are defined as Johnston in the Soils survey_for Lenoir County. These soils are nearly level, verypoorly drained soils on.flood~lains. Infiltration is moderate, the seasonal high water table is at the surface and runoff is very slow, and the surface is ponded in places. The Flood Insurance Rate Map for this area does not indicate any of the drainage area to be in a flood hazard area. It is shown as Zone X which is an area determined to be outside of the 0.2% annual chance floodplain. (See Attachment 2~ 10. Describe the overall project in detail, including the type of equipment to be used: The proposed solution involves placing a precast concrete structure in the stream to retain water and to slow the discharge through the existing 84-inch culvert beneath Sand Clay Road. (See Drawings Cl. l , C2.1 and C3.1) Approximately 16 LF of 84-inch CMP would be added to the existing 84-inch culvert beneath Sand Clay Road. A 12.foot diameter drainage structure would then be installed in the center of the stream. This structure would be custom-made and would be 14 feet tall and would have two 2' x 6' openings and a 4' x 7 'opening to allow water to pass through at different storm events and a gated top to allow. or overflow water to discharge icy blockage occurs . The bottom of the structure would be submerged with the lower opening extending below grade to allow normal.flow of the stream to continue unobstructed. The area around the proposed structure will be cleared of the existing vegetation and will be backfilled and slope to match natural grade. The stream banks and the outlet of the stream will be stabilized with riprap and.fabric to help control erosion and minimize scour effects. Side ditches that are currently dischar~g into the stream will be graded to discharge prior to the proposed structure. The areas around the structure will have topsoil placed and seeded to establish permanent vegetation. The City of Kinston will monitor and maintain the structure as a part of the maintenance of Barnett Park and make necessary repairs and remove any accumulated debris from the openings of the structure. Typical construction equipment will be used. The ollowing equipment will likely be used: excavator, rubber tine backhoe, dump truck, service truck, and miscellaneous hand tools. 1. Explain the purpose of the proposed work: The purpose of the installation of the concrete structure is to slow the rate of runoff on the north side o Sand Clay Road and create temporar~ponding on the upstream side. The area to be used or the temporary_ponding is a portion of the Barnet/ Park which is used for frisbee golf or is undeveloped. Currently, the drainage passes beneath Sand Clay Road through an existing 84-inch culvert. During periods o heavy rainfall, the rate and volume of runof' is so great that ooding occurs Page 7 of 15 downstream in both commercial, industrial and residential developments due to restrictions in flow downstream and the concentration of the entire drainage area. The 410 acres above Sand Clay Road combines with an additional 600 acres at a point in a downstream subdivision prior to dischargiLng to the Neuse River. (See Attachment 3) The intent is to slow down and temporarily detain this drainage on the north side of Sand Clay Road to prevent „ ooding on the south side. The stream has been surveyed to verify that it can store the retained water. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. NCDENR-DWQ has made an On-site Determination for the portion of the stream of ected by the project (see attached letter dated February 22, 2007). Meetings have been held to discuss various solutions to the existing drainage issue. Attendees of the meeting included representatives om the ollowing a eg ncies/firms: NCDENR-DWQ, NC Wildlife Resource Commission, US Army Corp o~Engineers, City of Kinston, William Barnett Companx LLC, and The East Group, PA. V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. No future permit requests are anticipated or this project. VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for Page 8 of 15 wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. Provide a written description of the proposed impacts: The stream will be impacted and the riparian buffer will be impacted. Approximately SS LF of stream will be impacted and approximately 0.10 AC of bu„~fer will be impacted. The stream will be impacted where the 16 LF of additional 84-inch pipe will be added and where the concrete structure will sit. The riparian buffer will be impacted where the all will be placed and the stream banks will be re- graded along the area of the pipe and the structure. Wetlands will not be impacted. 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no Distance to Nearest Stream (linear feet) Area of Impact (acres) None Total Wetland Impact (acres) ` 3. List the total acreage (estimated) of all existing wetlands on the property: 0.64 AC 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Number indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Im act Impact Length (linear feet) Area of Impact (acres 1 Unnamed Permanent Perennial 14 55 0.02 Total Stream Impact (by length and acreage) SS 0.02 Page 9 of 15 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Site Number indicate on ma) Name of Waterbody (if applicable) Type of Impact Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) Area of Impact (acres) None Total Open Water Impact (acres) 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): 0.02 Wetland Impact (acres): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0.02 Total Stream Impact (linear feet): SS 7. Isolated Waters Do any isolated waters exist on the property? ^ Yes ®No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation None If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ^ uplands ^ stream ^ wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts Page 10 of 15 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. Several alternatives were developed and considered. However, each of these alternatives were eliminated as possibilities due to various reasons. The alternatives were as follows: 1) Provide a off channel area, for temporary detention. A dry detention basin would be created and during rain events water would be diverted to it after the water reached a certain level. The water would then discharge back into the channel once the storm event passed. This alternative was not selected due to the requirement to acquire land for the dry detention basin and the him cost ofland in this area. This alternative will still include riparian buf er impacts. 2) Place permanent rock/silt check dams within the channel. This would slow the water in the channel until it reached a certain level and then spilled over. However this would require maintenance of the check dams to remove sediment and a larger portion of the stream would be impacted. Stabilization of these structures would require structural reinforcement and impact both the stream and the riparian bu„ ffer. This would also require additional easements from adiacent landowners for maintenance and installation. 3) Provide stilling basins at ditch tie-in points and at pipe inlets and outlets. This would require that the areas at these points be excavated and lined with rip rap. This also would required that a larger portion of the stream be impacted. 4) Clean out the existing channel to its natural grade, shape the channel banks to a manageable slope, and install slope stabilization fabric. This would require the acquisition of additional easements,from adiacent landowner so that the necessary bank slopes could be achieved. This would also require bringing in,fill to repair areas that have previously eroded. 5)Replace the existing 84" culvert pipe with a smaller culvert pipe to create the temporary ponding on the upstream side of Sand Clay Road. The alternative would reduce the cross sectional area o the,flow channel and therefore impact the aquatic life within the stream. This alternative would also not provide any freeboard or overflow options for large rain events. 6~~no improvements are made to this stream, the downstream developments will continue to be .flooded during periodic storm events. Loss of product and lose of production time at the industrial facilities would have an economic impact to the Industry and to the City of Kinston. The alternative chosen appears to have the least amount of impact to the stream and the riparian buffers in this area. It also appears to be the most structurally sound and maintainable alternative. Also this impact would be on one property owned by the City of Kinston so no other property owner would need to be involved in the process. VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors Page 11 of 15 including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. No mitigation is planned. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): 0 Amount of buffer mitigation requested (square feet): 0 Amount of Riparian wetland mitigation requested (acres): 0 Amount ofNon-riparian wetland mitigation requested (acres): 0 Amount of Coastal wetland mitigation requested (acres): 0 IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ^ Page 12 of 15 City of Kinston is the Owner 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ^ No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ®Not Required X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ® No ^ 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. * Impact Required Zone , ~„~_~ ~ ~~~ Multiplier T .T:4:....~:..« 1 1, 650 3 (2 for Catawba) 0 2 1,100 1.5 0 Total 2, 750 0 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. Not Required XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss Stormwater controls proposed in order to protect surface waters and wetlands downstream from Page 13 of 15 the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. The project is design to correct existing stormwater issues. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. Wastewater will not be generated. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ^ No Is this an after-the-fact permit application? Yes ^ No XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ^ No If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: Work will onl ty ake place in stream to correct existing stormwater issues on currently developed XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). The impact to the downstream industrial and residential developments are a significant concern to the Cit~of Kinston. This solution will provide needed relie,~for these downstream individuals Page 14 of 15 who deal with the e ects o~ the temporary, frequent _ ooding that occurs during storm events. This proposed solution will also provide some relief to the entire drainage basin by slowing down the rate o runoff from this portion of the basin. /v~GlloSt / ' Applicant/Agent's Signature "" Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 15 of 15 approximate and absolute. Map Soixce: No~!!t CsroNna Atlas i Oazetber. P~ 64.2003 SCALE 1" = 1 Mfle Ths East Group. PA MIc~eNe Cierr~ents F+wy zse North Trams LM G ~ ~,. ~ F~~ure 1 ~erpk ~ ~ NC fnvlion,n~nfe! CenfulfenN N~Cinity Map 40-0~~7^-3~1s1 Juno 2007 TopoZone -USGS Falling Creek (NC) Topo Map Page 1 of 1 ~ ~, 1 ~ "` - y ~~ ,' ~.1 11 . •. ~~ ~ t ~~ .~ ~F19~IYVfl '~ C`.AI'f'1 l_ ~-^__-y "_-~~ '~ -. t1 Y ~ 1 rt. ~~~• r ~ ~ .~ ~~ y,_.. i '.`.~.__..~ ~ ~ ~ ,/~ ,, r.~ ti ~~x 1 ~~ , I M* 0 0.3 0.6 4.9 1.2 1.5 km 0 0.2 0.4 4.6 0.8 1 mi 35.2764°N, 77.6401°W (NAD83/WGS84) USGS Falling Creek (NC) Quadrangle M=-9,367 Projection is UTM Zone 18 NAD83 Datum G=-1.526 http://www.topozone.com/print.asp?lat=3 5.27643&lon=-77.64013&size=l&u=5&layer=D... 3/12/2008 a ~ •~~ ~ •• . ~ • ~ ~ • •~ _~asr -~, s e '' ~+__. w.uwa _.. , . ti{)i 3'tt~~ili ll? x.71; ~I~SUIUIG- Map Source: Falling Creek Quadrangle 7.5 minute (topographic) 1990. 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Wdue a cunry bwntlary and a flppCng sparse wdn unmised NGVD A9 iboe pleva:Nns are pdnplaept aq mprda,eloXaet M1ea bean pmaphtap ape apa~ep epnng me ' n bt Mis s¢txmin fOrmM FlFM. See SecApn 6i ptma acmmpaMing Flpptl Insurance s[udy report tp obtain funrar frdommedun cn of Aevadons vetween NAVD 88 end NGVD 29. To pdrain currant elevation, aeeprt=flan. ana/or Ibpadpn h9ormatlorm- began mrta ahown pr rols map. FAeree contam9ra NoeM1 Ca~idlna Geotlnlc Survry at rM1e atldrns sku,n hnlnw_ also nine Iplorrratlun Sere na Brann of the Nallnnal Geo]dric Surveyaat laps l rt9-a2a2, o~ eisll heir weake at rruw.nps no N h G I'. ~ God ' s C ry A Wage Van cal Jatum Ottset ladle 12. N6 S pry fhmlh' R le'gn NC g) 3 1891 ]]}J83fi All summs Ib1etl 'n the Fleod Xexard Data irble below were stutllpd by e¢Iletl melhotls using field su ev. Othe, Ilopd M1aaartl pate shown or 'his Irap may haae been desired nsiny ehter a coastal aralysls 0, Ilmbu detaled pair+;a. More Ipmrmason on ma fmpmng avu~eaa .mumaA br mane araMaea ~a cpnrPmep In me nand F.wrance svtly reppr_ FLOOC HA2ARC DATA TAB LE ana.a,we~r.c FAIJNG L ACCF Ot3 ] NEIIS~aIVEF E69 <X9 9,556' 40590 39fi,939' 90500 JI B 3669/2$90 ]080 fi~ 2030 /?'90 9103 m0,33 a0 1,900/3,615 v EP. TFIeuiA XV 495a uE 0' 15 O FMON T iAB TPA Y 31.5° 99 31.9' 99 06a 6.950 c 3 am Wo IEFi 136a ""' City of Kinston F.xtraterrimrial Jurisdiction 370145 lolNB PANEL 4516 LEGEND I ~;'"~n' SPECIAL FLOOD HAURO ARFAS (SFHAJ SUBIECT TO i~ INIiNDATION 8Y THE IM ANNUM. CHANCE FLOOD annuil rbana Mad 11n1-year AooAr abo h.+..n . tm Fm hnd, t. rM1e Ar.,d S rhos a I % dvwe of NInA Ntiagd or uai.d in any yv.o veer. The sAkiil F ao1 H rU es is dv aixo w a m Awdirry fiY rM1e 1% n ual dnnrr Aapd. ,es iaaerdd uaeam Indpar~ipn.. qAf. nl l.AO, na. 899. v. and vE. Tn. e..a ilm~a it nn,a rnana Rrv,d. .,na~Arrerm~eA~ ,aRFwpe Elrwlun, a.rom,bw. lout AN Blood d.prhr of r feu morally areaM pnnAingr; brats FInM Fl.vaavnr 0e¢rmlwf. xOrvx AO Fuod ~Ndu OeteWni~redelor aye euf a9uvul fen Arwd nXRVell~atrla~ average dap w JNermiuv9. xE a al rood H ~a rrv~~ry praouvul I,em me tw nn m ~Ie nmf e aom ~nnpl n m mat wv a~~enw rrrrdr d. m r w mairner mm Ile m~rMr enpa ,nar„I sync btlng rrlwrG m pralde pmt«tlon M1onr me IX annual d,an c or Yearei Ants SON! A» m be proktled firm 1 M annual d,ma MM M o federd XrJ pmlaz,lon slssem unhr anxmnion. no Oue NrM Elevaunns Jere mineA. ZONF VF meal AmA n.v wA v i,y hzrad marw aNpnr, pax FImA iWUlm, AekrminM. FLOODWAY gRFA1 fN ZONE Af The Mwdwav o Ifie rAannd ,J a,unrir plur any adjaam AouAP'ao, uem Nu rnrnrb: 4ep ireeau' envoarMrml w tlw Ae 1yn moral cAance Aood an be rz,Aed Mtlwr u n, v aus pi Awd heirhu. OTHER FLOOD gRFAs ZgaF n a of b.tYS annpel ~fiapac M1,nd; er m of 1M .nnud rfiance AwrJ wlm avery{e depllu d [ea tlun t loot prwlm dmtn.ye arw les Nen t yuarc mX~ aril um 4rokwl hY brcu iro,ri 1G mnual,)aue Awl. DrHFR alas w><drwnirod m a oumd<t~ nzx ,lnpal N,na tlcadpwn. acs to xfilrh AmA fiaxa~r6 am uMnraminrd, butposslhlc COASTAL FARRIER RESOURCES FYSTEM fCFR51 ARFA( ~~ ~ Dnmewlm PRONCmD AREAS tuvnal BF error o~ as arc ~ axWl Foal HoreN aw - a ,ual dace Aranlp4 n F.unA+ry O~i Mdonnual vhan« Amdphin boundary - - - - fladrwy h,uodvy ]one onMry nn .................... lBRS aM t)pA MwMarv "" "~~ 0oundary AMJnR SpMi FIOM fWVd Aiw. ardiihrenr L"::-"'":1 ase FIwA Fwanpn°. Hord dePN: o, Mocd valcciaee -^---619---- a-Hord F ,. end velac~ c><valbo '.n w Nr.rA FI va,n Ilrmbe ntirre ~~drmm .AAln,pnr. IES ae>I nbvadnn In lar• nerenwl m tk NunX Mreriran awul Oarum or I/de ~~ oas <mw nnr -_____O tram.n rnr. raadl~ar~ mrrem~r In Nr Np„„ Amwlr~ 9r td .,E 3a_6 D;r~P~ 49ux• I rW r 6d tr il h ml' I an wo EEi ~ BM55gx 4 1 ~. ykA 41 I h la m tl n o N~c i RM p eY,m 8M5510 Na Cn erb survey LemA ,nrk lee esplanalimr Ire ® Il,e D um ulnhxmabnp anon nllFla IAN panA1 r Nl> 0.n., fn} ~~ cFID uoarH AuP scale I• toao~ rt 1z,oaol Rp fEEr aaa o xp 5aaIETERS III AI II ~IIIII JIII PANEL 4504) I City of Kinston FIRM fE00D INSURANCE RATE MAP NORTH CAROLINA 14 uscr,.yrtew lore, wr "0e TM1b dig!¢I Flopp Insprarce Pate Map InFM was mpouced mrpuyh a unique pre partnership between the State of NOFM1 Csrpllna antl the Fatleal F~eryency Management Agency lFEMA. The State pf Ndrin CarDlira has mplementntl a brag rum approach pt MDOApleln managn'nnrt tp decrease. d b dl I This A d sp g M A tll h l II I. A" th' X N p P o I' S ' g T 19e¢ egree~ wRiN FEMA pdpco arp aomr P dBnaIFIPM. www.nc(loodmaps.com Thh crap ,s tar use In adminive,ing me Natlonal Flood Inw,rance Pmgrem. X does rot sadly Itlentlty ell aeas supiett to Ilootling. Darticdady Faro lo<aldraaage sources DlsmaA slzc. The connunltY naD repealtolry sAOUb be wrsuhN )a ppsslak updated pradd I M A r e '. mrmanpn Tc pb ' d I ' lormation n areas whore eue Flood Elrv tl 9 E' na/ it h y on detemi natl. uses are enww~ed ro pp F, h FI tl Prpl'ea, FlpadwevD to /or summer of sti wm E bl davit 'n M1e FI d I. 5 d FIS reppF .hat eccpm '. FIRM U ud be e That Fr[s sown on [M1e FIflM -ep eventr d tl wnola-Spot eleratons, iM1esa BFCS s¢ intentletl tar Mead insurance rz4ng ppryoses only antl shovltl nol to used as tie sde source pf Ilopd eleverien Infornadpn. Awpkingy.flppd elevation date ut~ In Ne f15 re on shouts oa uvlgetl in conluncaon wM the fIFM fa purposes of ppnatma~,n and/nr pnnpdplam managamem, Bond' (h }I dry d' glrad b' T 11 ad G p d I llr ss ~ Y ' tNN ~R tll. Pg .Flo y~din d yeMne Xuodway rah rc pr 7m' Ne FbpA Ins n Srrdy repprtiD [ a labsd'cdp s. City Of Kinston 370145 NOTES TO USERS Certain areas or In Sgalel Flood HazaN Areas roar be protepmd by flood rpnirel ibis map reAecs mare datnleo and ap-toda¢ rtreae <haenel ronflgurrtlonr man niructuree. R to sttuon e.a ~lootl Pro¢glon Measures" of the flood Irsurerpe e Nose sM1wrn on fM1e pr»eus FWM for [tin' pn. The Ibotlpleids erd ilood.+ays ur~ctl intamatior. on tlopo control sbu<wes In the wdsdlNpns. Study ¢ppA for Thal were trenslertod from [he previous FlFM may have been atlissted :D ppriorm to h M1 I f le RN FI Pfil dR 9 Y ~ rp' Po' Itl d d d FIRM b' d hd A I tl. g ''- g b I ty d fed D bl h loaf I s dy p Ili h a W h A Ib tl I y M Ids tldfe h bt ap. d/ N Th d b f FlFM' "I d A of (re Np'ond Ogrtpl OrrT~ophcm Prpgrom the lore pe po al cpllecfo fort Please relarro t rarely p~ ~ted Yap Ilydex for „n ova p of t e county g ~ magaiy la ly?R-1898. I la a artl geo,pata daa .upp6ei by the Ioaal wmmunhN eel sAOVdng Ibe layolrt of n antl a Lst ag of ap Danels', commuorry ma4 repromry addmsse met FEMA bas specificatlp s pHs duetl he p'derred sp u to CpmmublYos labia coMan rag Na4onalRmd Inwrarpe PoAam dads for each mrmlurry alppment of rM1e base crap. See Aeospetial mebdad ta!Ae asspcatetl tlip;al RAM V as wall es a Ilsling of fM1e panels on whiph eaoh Is located. fa additionallnNmanpr abpp[base map pepaaapr. pvemions conce Xrop ha.e guertbns .boat <nla nap. pr more me motional ROOtl Base map lemwss sM1pwn an mis map. nuts as prrprrate linlta. era basetl on dte Insurance Pmpmm In gereral. pieaae ve111-XZI-FFYA WFSe]]d3F18D1 or NsR;ne :od I bl - f bl' to 9 Sn Me corporate FEMA at w«wtema.oov lleit y A d L tA1 W p bli A d. Map users should A Ty m I tc m mfr car prat wntlRans of A FI tl I 51 L f AI R ILOM L isd"ptlopel bpu.We p base map feayras, l tMs f M'p 0. d a d y M F fl 9 F g e al bl V tM1 X M1 L 11 it dpleln l ppl 1 rvwwmcmptl~eco_,o ao taco FEXA sap seraipe Lrnterm Fepoara9fife ta-molmaron on ii i ed p od ~ s e ' h Ps nFM. The FEMn map sera Cepmr may aha ba reaphad by Fm at FXOF35?-&]i g and ihoirvmai's atvn^.+v.lrmp.3o Adala DAre 4:n FsosnaMS n[waXNd or.ish.vwr+.nrnmdr,u nuY P h d M M nay P I pPP _ ry table I and b Fl d l dy po i h "af I tl . M1 IA h aReMNe rN GoFo D d g r R rear We A'aonNFbui m>'rance kogmn uNe ri 'tph I w.. n r ~ ~ . a~NmH hrera~ Pn~am aNKK1 fp Hm rnR 100-61 xwlema.pMifiP PANEL 4504 ,orATD9 9N6F~a tln MA I.Rr, F6A A5M cpvlnlXS. LOMMXIaFt NJMBFA ANn SIIfAY EffECTIVE DATE MAP NUMBER IUEY 2,1004 J7204SO40E1 ~,~ a"0~"' Stan of Nan h Carulib~a FederalEmergency Mepegcmenl Agenry' 500' 250' 0 500' 1 "=500'-0" WATERSHED CITY OF KINSTON DRAINAGE STUDY APRIL, 2007 THE EAST GROUP, P.A. ^Enginee~ring ^Architecture ^ S~urueying ^Technology Box 7305, 324 S. Evans St., Greenville, NC 27834 252-758-3746, 252-830-3954 (Fax) >K y PR y P(~ ~~&l~~~ ~~~~~\~ Q ~ Q ~ ~ ~ 8/27/08 ISSUE FOR CONSIRUC110N BVB ~ wrz k'AWl n THE EAST GROUP, P,A, '~*N+~*Y'ImA1fM~n•SNvW+W'lY Y A{ 91 f B~~ ~~M k L!1 R-1iJM, iO~1Mpd M106Y 1111[ City of Kinston Drainage Study rz~ DRAINAGE AREA 1 ,,s NmEO as eve +/eim ~~ C~ 1 e 20070057 . ~ • o`'o~ tiW a r~RpG ~ ~ ~' -i ~ ~ _---- - -_ February ?~. 2f)07 ~4ieharl I I:a+lcr. t;u.rox,r VFdhasn (i Koss Ir , secrctxrv Nt~rlh C'aa~ltn;t I k partntnnl nl I.m ironrncltt :utd \aturxl Krsuurie~ Alan LV Klimri.. P.t:- ihetaaor [)icisurn of water t?uaht} 1)W(1 I'rdjcct # WaRO-(?7-O26~ l.enc}ir C'out~ty Vlrs. Michelle Clements The East Group PA a2~ Evans Street Greenville, NC 278~8 Subject Property: Sand Glare Road (NCSR 1553) I_;T to Veirsl River On-Site Determination for Applicability to the Veuse River Riparian Area Protection Rules (15A VC'AC 2B .0233) Dear ylrs. Clements: ()n Febru~rry 2U, 20U7, at your request f canclucted an do-site deterrninatian td review drainage features located on the suhject propcrtr~` for applicability to the 'Meuse Quffer Rubs (I5!1 NC=AC' 2R .Q23;~ }. Thhe property is located just off'of'~CCSR I ~~ ~ Sand Clay Read. '1'hc features are labeled as'`1J~'aKU-U?-017 a & b" on the attached map initiated b~' me ott l~ebruary ?(3. 2[)()7. The Division of ~'4'ater Qualih' (DW'Q) has determined that the portion of the features that is highlighted in blue and labeled as "VIWaR0-07-0017 a & b" starting at the Pipe stream crossing of tiCSR 1553 and continuing upstream to cans°ergence of tw~a unnamed tributary' and continuing upstream of each of the unnamed tributaries 250 feet as shown on the attached. map is Subiect to the Meuse Buffer Rules. '[~hesc; features should be identified on any future plans f'or this property. The o~vrler (or f'uturc owners) should notify the D~l'(,1(and other relevant agencies) df this decision in any future correspondences czmcerninb this prdperky. This determination pertains td the. subject property c}ttly. This cin-site dctertnination shall expire five ~ ~ }years frt~m the date of thin letter. Landowners or affected parties that dispute a determination made by the I)~~'Q car Delegated Local Authority that a surface water exists and chat it is subject td the buffer rule rnn}~' request a determination by the Director. A request fr~r a determination by the Diretor shall be referred to the Director in wriiing c~`a C'yndi hardly, DWQ l~~`etl<rnds.'=t{)1 t snit, ? ~? I Crabtree 1~Slvd_, Raleigh. yC' 27G0~1-226(}. Individuals that dispute a determination by the C?V4'Q or [)elegated Local ~~~uthority that "exempts" a surface water from the buffer rule may ask fi}r an adjudicatory hearing. You must act v<Tithin 60 days df the date that you receive this letter. ,~~pplieants are hereby notified that the 6O-day statutdr}' appeal time do}es not start until the affected party (including; dd~~~nstrcatn and adjacent landowners) is notified of`this decision. DWt1 recommends that the applicant conduct this notification in order td hN certain that third party appeals arc made in a timely manner. \ortkt t'ztrolina [)is icon of"4vatcr (jualit} anterr,~t- h2a.etttstate.r~.us g-!; 4vashin~;G~n "iquare'titall I'honc 242 `,7_#t,-tialil ~l'ahmpton. \iC 2'lSR9 F,1?i .5' ~?~(±•~2t An Equal Opport;~^:mf~A`firrnat+~e NCtian Ertp~ayer- ~C~~ Reaycied'10°~s Post uansumes Pa;~+ No ~ hCarOlina ~atura!! a ~ ~ 'I~o ask for a hearing, send a written petition, which conforms to Chapter 1508 of the North Carolina General Statutes to the Office of !administrative Hearings, 6714 4iai1 Service Center, Raleigh, N.G. 27699-671=1. Phis determination is final and binding unless you ask ft~r a hearing within 60 days. This letter only addresses the applicabilit~• to the buffer rtiles and does not approve an} activity within the buffers. Nor does this letter approve any activity within V4'aters ol` the United Staies or ~4`aters of the State. If you Dave an_y additional questions or r~°quire additional infvrmatian please call nee at (?~') 94~-3y40. Sincerely, A ~~ Roberto l.. Scheller.~l~nvironmcntal Spec. lI! C_)1~V(~.~ aa~ aRO 4Vctlancis ~ 401 I:xpress unit l~nelosures: [ SCiS tap, Falling Creek cc: I»4'Q WaRC) file ~lOl Central Office ale Filename: w'aRC:l-07-0264 077 ` 38'3000"W 077' 38'0 00" W 077° 37' 30.00" W • j .?d •' • ' - - I• _ Y . j No R'4G&cling Envirenmer;ii •.+ Man44M. eorn rn isfion � Divfs'" • cew �Q • r 7 ♦^ \ ¢ r + Date 2,(^ 44 • { Reviewed l' • r b • • • Z i LO Bethel Ch VOW • + ♦ + • f ♦ ,• •U,, f • i • • .29Aha4 R i 3 • :;. aR0-07-001 0' ,' 4 . • 4• • / © • •ted. ''� Z a WaRO-'P7 Sewage dd s r " a Church of thL- •r Y _j M exempt poly __._;:tet 4NL) Q `"�• ttltdCJ+E; doth .z. 43T C_44ROZZ - * -06 . • • ••iir •.•■...' . . • • ' • • Westvi ew ` . `s =` got 4 z • • a/age • • • ! ••� • D • it ••i+Cem '• + • O O • • • • • ♦ • P • o ti 1w, O • • • p Q 9' W boo + ' • I T of yqr p 077° 98' 30.00" W 077' 38'0.00" W 077° 37' 30.00" W Name: FALLING CREEK Location: 035'16'40.19" N 077038'11-89" W Date: 2/23/2007 Caption: Lenoir County, SR 1553, Sand Clay Road. j Scale: 1 inch equals 1000 feet 98, Maptech Inc ~ k Stormwater Calculations Project William Barnett Drainage Study Kinston, NC Date 04/02/08 DRAINAGE AREA 1 Existing Conditions - 2 Type Year Event Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.40 12.00 Total 410.00 88.50 Composite C factor 0.22 Overland sheet flow use manning's kinematic solution Tc = .007*(nL)^.8/(P2^.5 S^.4) Mannings n Flow length 2-Year 6 Hr Rainfall Land Slope, S, ft/ft Tc, h r = Tc, min = O=CiA 1.10 From IDF Curve Existing Conditions - 5 Year Event Type Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.40 12.00 Total 410.00 88.50 Composite C factor 0.22 Overland sheet flow use manning's kinematic solution Tc = .007*(nL)^.8/(P2^.5 S^.4) Mannings n 0.030 Flow length 7000.00 5-Year 6 Hr Rainfall 3.90 Land Slope, S, ft/ft 0.008 Tc, h r = 1.81 Tc, min = 108.51 thus i = 1.50 From IDF Curve O=CiA 0 8 0 6 4 5 I ~ Tc, min = 102.16 thus i = 1.80 From IDF Curve Q=CiA Type Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.40 12.00 Total 410.00 88.50 Composite C factor 0.22 Overland sheet flow use manning's ki nematic solution Tc = .007*(nL)^.8/(P2^.5 S^.4) Mannings n 0.030 Flow length 7000.00 10-Year 6 Hr Rainfall 4.40 Land Slope, S, ft/ft 0.008 Tc, hr = 1.70 Type Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.60 18.00 Total 410.00 94.50 Composite C factor 0.23 Overland sheet flow use manning's kinematic solution Tc = .007`(nL)^.8/(P2^.5 S^.4) Mannings n 0.030 Flow length 7000.00 FT. 25-Year 6 Hr Rainfall 5.20 IN. Land Slope, S, ft/ft 0.008 Tc, hr = 1.57 Tc, min = 93.97 thus i = Q=CiA 2.50 From IDF Curve Type Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.40 12.00 Total 410.00 88.50 Composite C factor 0.22 Overland sheet flow use manning's kinematic solution Tc = .007'(nL)".8/(P2^.5 S^.4) Mannings n Flow length 50-Year 6 Hr Rainfall Land Slope, S, ft/ft Tc, h r = Tc, min = Q=CiA 0.030 7000.00 FT. 5.90 IN. 0.008 1.47 88.22 thus i = 3.00 From IDF Curve Existing Conditio Type ns -100 Year Event Area(ac) C factor CA Residential 51.00 0.40 20.40 Woods 232.00 0.20 46.40 Farm 97.00 0.10 9.70 Park 30.00 0.40 12.00 Total 410.00 88.50 Composite C factor 0.22 Overland sheet flow use manning's kinematic solution Tc = .007'"(nL)^.8/(P2^.5 S^.4) Mannings n 0.030 Flow length 7000.00 FT. 100-Year 6 Hr Rainfall 6.50 IN. Land Slope, S, ft/ft 0.008 Tc, hr = 1.40 Tc, min = 84.05 thus i = 4.80 From IDF Curve Q=CiA 2-YEAR EVENT Worksheet for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeffic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 97.35 cfs Results Depth 1.84 ft Flow Area 11.0 ft= Wetted Perimi 9.68 ft Top Width 6.00 ft Critical Depth 2.02 ft Critical Slope 0.003868 ft/ft Velocity 8.82 ft/s Velocity Head 1.21 ft Specific Enerc 3.05 ft Froude Numb 1.15 Flow Type supercritical Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 (614e] 04/03/08 03:37:37 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 Cross Section 2-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 1.84 ft Bottom Width 6.00 ft Discharge 97.35 cfs 1.84 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:37:59 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 -Page 1 of 1 Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeffic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 132.75 cfs Results Depth 2.30 ft Flow Area 13.8 ft2 Wetted Perim 10.59 ft Top Width 6.00 ft Critical Depth 2.48 ft Critical Slope 0.004062 ft/ft Velocity 9.63 ft!s Velocity Head 1.44 ft Specific Enerc 3.74 ft Froude Numb 1.12 Flow Type >upercritical 5-YR EVENT Worksheet for Rectangular Channel Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:39:12 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 CROSS SECTION 5-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 2.30 ft Bottom Width 6.00 ft Discharge 132.75 cfs 2.30 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:39:57 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 / ~ Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeffic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 159.30 cfs Results Depth 2.62 ft Flow Area 15.7 ftZ Wetted Perim 11.25 ft Top Width 6.00 ft Critical Depth 2.80 ft Critical Slope 0.004207 ft/ft Velocity 10.11 ft/s Velocity Head 1.59 ft Specific Enerc 4.21 ft Froude Numb 1.10 Flow Type supercritical 10-YR EVENT Worksheet for Rectangular Channel Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614ej 04/03/08 03:40:39 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 CROSS SECTION 10-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 2.62 ft Bottom Width 6.00 ft Discharge 159.30 cfs 2.62 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:40:52 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 a Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeffic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 236.25 cfs Results Depth 3.53 ft Flow Area 21.2 ftZ Wetted Perim 13.06 ft Top Width 6.00 ft Critical Depth 3.64 ft Critical Slope 0.004617 ft/ft Velocity 11.16 ft/s Velocity Head 1.93 ft Specific Enerc 5.46 ft Froude Numb 1.05 Flow Type supercritical 25-YR EVENT Worksheet for Rectangular Channel Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 (614e] 04/03/08 03:41:46 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 CROSS SECTION 25-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 3.53 ft Bottom Width 6.00 ft Discharge 236.25 cfs 3.53 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:42:02 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeffic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 265.50 cfs Results Depth 3.86 ft Flow Area 23.2 ft2 Wetted Perim 13.72 ft Top Width 6.00 ft Critical Depth 3.93 ft Critical Slope 0.004767 ft/ft Velocity 11.46 ft/s Velocity Head 2.04 ft Specific Enerc 5.90 ft Froude Numb 1.03 Flow Type supercritical 50-YR EVENT Worksheet for Rectangular Channel Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e] 04/03/08 03:42:32 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 CROSS SECTION 50-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 3.86 ft Bottom Width 6.00 ft Discharge 265.50 cfs 3.86 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 [614e) 04/03/08 03:42:47 PM m Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 ~ ~ f ~ Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Input Data Mannings Coeftic 0.013 Slope 005000 ft/ft Bottom Width 6.00 ft Discharge 424.80 cfs Results Depth 5.60 ft Flow Area 33.6 ft2 Wetted Perim 17.21 ft Top Width 6.00 ft Critical Depth 5.38 ft Critical Slope 0.005529 ft/ft Velocity 12.63 ft/s Velocity Head 2.48 ft Specific Enerc 8.08 ft Froude Numb 0.94 Flow Type 3ubcritical 100-YR EVENT Worksheet for Rectangular Channel Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster vs.0 [614e] 04/03/08 03:43:13 PM m Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 s ~ CROSS SECTION 100-YR EVENT Cross Section for Rectangular Channel Project Description Worksheet Rectangular Chann Flow Element Rectangular Chann Method Manning's Formula Solve For Channel Depth Section Data Mannings Coeffic 0.013 Slope 005000 ft/ft Depth 5.60 ft Bottom Width 6.00 ft Discharge 424.80 cfs 5.60 ft V:1 H:1 NTS Project Engineer: Michelle Clements c:\haestad\fmw\barnet park.fm2 The East Group FlowMaster v6.0 (614e] 04/03/08 03:43:29 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1