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HomeMy WebLinkAbout20071912 Ver 1_Application_20071113ew~o~ ~t va,,,,,,,s• STATE of NORTH CAROLINA /?, ~~~V FILQMQF~N~ ~~Rk4,u ,~~ j Lf ~tfry,~~~ Ty 3~`CN DEPARTZViENT OF TRANSPORTATION MICHAEL F. EASLEY LYNDO TII'PETT GOVERNOR SECRETARY November 7, 2007 Mr. Steve Lund US Army Corp of Engineers O 7 7 (~ ~ n Asheville Regulatory Field Office I 1 ~J L 151 Patton Avenue, Room 208 Asheville, NC 28801-5006 SUBJECT: Pipe Replacemerrt on SR 1934 (Lowland Dairy Road), Gaston County Dear Mr. Lund: The North. Carolina Department of Transportation requests authorization to replace a failing cross pipe on SR 1934 (Lowland Dairy Road) in Gaston County. NCDOT proposes to replace an existing perched 60.foot, 30" RCP with a 70.foot, 36" steel casing, which will be bored/jacked into place around the existing pipe. The pipe will be extended 10 feet on the downstream side. The pipe will be placed on the existing pipe elevation due to the extreme pipe slope (9.5%) which would result if the upstream and downstream elevations were reconnected. A rock ladder will be constructed to the outlet invert to connect the pipe elevation and the natural downstream bed and to facilitate same aquatic passage. The rock ladder will also provide some energy dissipation in an effort to prevent stream destabilization. A 12-foot x 30-foot staging area is necessary upstream of the pipe to bore the steel casing into place. Temporary cofferdams and bypass pumping will be utilized to manage the stream during construction as needed. Upon project completion, the channel disturbed by the staging area and temporary cofferdams will be restored to pre-project conditions and the surrounding azea seeded and stabilized. Five feet of Class B riprap will be used on the pipe outlet embankment as well as the inlet for structural protection. Due to the existing site conditions and the nature of the project, NCDOT request a waiver from the Regional Condition 2(b)(e)-permit depth specification, for the construction for this project. The total scope of work will result in 25 feet of permanent impacts. The stream is on an unnamed tributary to Stanley Creek, which is classified as Class WS-IV Waters by the Division of Water Quality. Post Office $ox 47 Shelby, North Carolina 28151-0047 Page 3 SR 1934, Lowland Dairy Road November 7, 2007 If you have any questions or concerns please feel free to contact me at (704) 480-9044. Thank you for your time and consideration on this matter. Respectfully yours, M.L. Holder, P.E. Division Engineer Twelfth Division er %~ ~~ Trish Simon Division 12 Environmental Supervisor Enclosures cc: Polly Lespinasse, Division of Water Quality (Mooresville Regional Office) John Hennessy, Division of Water Quality (Transportation Permitting Unit) Office Use Only: Form Version March OS USACE Action ID No. DWQ No. 2 0 0 7 1 9 1 2 (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) L 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: NW 14 ~C#3627) 3. ff this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ^ 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: ^ 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: ^ II. Applicant Information 1. Owner/Applicant Information Name: Mike Holder, N.C. Department of Transportation Mailing Address: P.O. Box 47 Shelby, NC 28151 Telephone Number: 704-480-9020 Fax Number: 704-480-5401 E-mail Address: 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: Trish Simon Company Affiliation: Mailing Address: N.C. Department of Transportation P.O. Box 47 Shelby NC 28151 Telephone Number: 704-480-9044 Fax Number: 704-480-5401 E-mail Address: tsimon(a,dot.state.nc.us Page 1 of 8 10. Describe the overall project in detail, including the type of equipment to be used: Replace 30'; 60-foot failing~ine with a 36". 70-foot steel casing. by boring. ~d jacking method. The pine will be extended ten feet on downstream end. The pipe will be placed at the existing pine elevations, due to extreme slope that will result in reconnectin tg he upstream and downstream elevations. A rock ladder will be constructed at the outlet to reconnect outlet to streambed, and to provide some aquatic passage. Five feet of Class B riprap will be placed at the inlet and outlet to help stabilize the structure. Shoulder will be repaired with typical heavy equipment (trackhoe, backhoe, etc.). 11. Explain the purpose of the proposed work: The purpose of the proposed work is to replace a failingpiye for the safety of the travellingpublic. 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. N/A 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 aze anticipated for this project. VL 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 sepazately in the tables below (e.g., culvert installation should be listed sepazately 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 cleazly 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 wetland ar stream mitigatioq list and describe the impact in Section VIII below. If additional space is needed for listing or descriptioq please attach a separate sheet. 1. Provide a written description of the proposed impacts: Minor impacts from increase in pipe length the boring% acking staging azea and rock ladder construction. Page 3 of 8 Wetland Im act acres : 0 O en Water Im act acres : 0 Total Im act to Waters of the U. S. acres 0 Total Stream Im act linear feet :Permanent 25 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 NO POND IlyIPACT5 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, imgation, 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 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. The existin~,,pine must be replaced for the safetv_of the travelling public. A rock ladder will be placed at the nine outlet to provide some aquatic passage. VIIL 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 5 of 8 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 X. XL 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 ^ 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. identify )? Yes ^ No 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 1 SA NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please 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. Zone* I ~„ ~~~ .. I Multiplier I ,~, 3 (2 for Catawba) 1.5 2 Total * Zone 1 extends out 30 feet pecpendic~ additiona120 feet from the edge of Zone 1. 3. the top of the near bank of channel; Zone 2 extends an If buffer mitigation is required, please discuss what Donation of Property, Riparian Buffer Restoration / Riparian Buffer Restoration Fund). Please attach all within 15A NCAC 2B .0242 or .0244, or .0260. 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 the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. There will be no increase in impervious acreage. Appropriate erosion and sedimentation control measures will be in.,place during the pipe replacement. type of mitigation is proposed (i.e., Enhancement, or Payment into the appropriate information as identified Page 7 of 8 APPROVED JURISDICTIONAL DETERMINATION FORM U.5. Army Corps of Engineers This form should be completed by following the instructions provided in Section N of the JD Form Instructional Guidebook SECTION L• BACKGROUND IlVFORMATION A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD): B. DISTRICT OFFICE, FILE NAME, AND NUMBER: C. PROJECT LOCATION AND BACKGROUND INFORMATION: State: North Carolina County/pazish/borough: Gaston City: Mt. Holly Center coordinates of site (laUlong in degree decimal format): I.at. 035°20' 41.36"°(1~ Long. 081°O1' 25.2T'°(vv). Universal Transverse Mercator. Name of nearest vvaterbody: Stanley Creek Name of nearest Traditional Navigable Water (TNW) Into which the aquatic resource flows: Catawba River Name of watershed or H~~drologic Unit Code (HUC): Catawwba Check if map/diagram of revievt~ area and/or potential jurisdictional areas is/are available upon request. Check if other sites (e.g.. ot3site mitigation sites, disposal sites, etc...) are associated ~~th this action and are recorded on a different JD form. D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY): Uffice (Desk) Determination. Date: Field Determination Date(s): 10/17/07 SECTION II: SUMMARY OF FINDINGS A. RHA SECTION 10 DETERDIINATION OF JURISDICTION. There [Are no] "narignhle trcrters of the L,:S."within Rivers and Harbors Act (RHA) jurisdiction (as defined bt~ 33 CFR part 329) in the review area. [RegrriredJ Waters subject to the ebb and flow of the tide. :t Waters are presently used. or have been used in the past. or may be susceptible for use to transport interstate or foreign commerce. Explain: B. CWA SECTION 404 DETERMINATION OF JURISDICTION. There [Are not; Are; are and are not] "wiaters of the U.S."within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required) 1. Waters of the U.S. a Indicate presence of waters ofU.S in review area (check all that apply):' [ TNWs, including territorial seas Wetlands adjacent to TNWs Relatively permanent waters (RPWs) that flow directly or indirectly into TNWs Non-RPWs that flow directly or indirectty into TNWs Wetlands directly abutting RPWs that flow directly or indirectly into TNWs Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs Wetlands adjacent to non-RPWs ttrat flow directly or indirectly into TNWs hnpoundments of jurisdictional waters Isolated (interstate or intrastate) waters, including isolated wetlands b. Identify (estimate) size of waters of the U.S. in the review area: Non-wetland waters: 40 linear feet: 2 width (ft) and/or acres. Wetlands: acres. c Limits (boundaries) of jurisdiction based on: [1987 Delineation Manual] Elevation of established OHWM (if known): 2. Non-regulated waters/wetlands (check if applicable):' ~ Boxes cl~edced Ulow shall be supported by completing the appropriate sections in Section III below. z For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally" Identify flow route to TNWS: To Stanley Creek, to Dutchman's Creek, to Catawba River. Tributary stream ordea, if known: (b) General TributaryCharacteristics (check all that analvl: Tributary is: ®Natural ^ Artificial (man-made). Explain: ® Manipulated (man-altered). Explain: In the vicinity of the project area there is a newly developed housing development and it looks as the stream has been altered to accommodate the housing development. Tributary properties with respect to top of bank (estimate): Average width: 1 feet Average depth: <1 feet Average side slopes: [2:1 ]. Primary tributary substrate composition (check all that apply): ^ Silts ®Sands ^ Concrete ^ Cobbles ^ Gravel ^ Muck ^ Bedrock ^ Vegetation. Type!% cover: ^ Other. Explain: Tributary condition/stability (eroding]. Explain: Housing development is putting a lot of stormwater into the steam. Presence of rtrrJrifllelpool complexes. (Vague] Explain: Tributary geometry: [Relatively straight] Tributary gradient (approximate average slope): 2 (c) Flow: Tributary provides for:[ Seasonal flow] Estimate average number of flow events in review area/year: [11-20] Describe flow regime: Water coming from newly developed housing development. Other information on duration and volume: Surface flow is: [Discrete and confined]. Characteristics: Starts more discrete then when stormwater from housing development comes in, flow is confined Subsurface flow: (Unkrtown]. Explain findings: ^ Dye (or other) test performed: Tributary leas (check all that apply): ® Bed and banks ® OHWNi6 (check all indicators that apply): ^ clear, natural line impressed on the bank ^ changes in the character of soil ^ ^ shelving ^ ® vegetation matted down, bent, or absent ^ ® leaf litter disturbed or washed away ^ ^ sediment deposition ^ ® water staining ^ ^ other (list): ^ Discontinuous OHWM.' Explain: If factors other than the OHWM were used to determ High Tide Line indicated b}': ~: ^ oil or scum line along shore objects ^ fine shell or debris deposits (foreshore) ^ physical markin_ss/characteristics ^ tidal eauaes ^ other (list): the presence of litter and debris destnrction of terrestrial vegetation the presence of wrack line sediment sorting scour multiple observed or predicted flow events abnrpt change in plant community ine lateral extent of CWA jurisdiction (check all that appl~•) Mean High Water Mark indicated b}•: ^ sttrve}~ to available datum: ^ physical markings; ^ vegetation lines/changes in vegetation t`pes. s Flow route can be described by identifying, e.g., tributary a, which flows through the review area, to flow iMo tributary b, which then flows into TNW. 6A natural or man-made disco~inuity in the OH WM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where the OHWM has been removed by development or agricultural practices). Where there is s break in the OHWM that is unrelated to the waterbody's flow regime (e.g., flow over a rock outaop or through a culvert), the agencies will look for indicators of flow above and below the break 'Ibid. For each wetland, specify the following: Directl abuts? ~Y/1~ Size (in acres) Directly abuts? (Y/N) Size lin acres) $innmari~g overall biological, chemical and physical fractions being performed: C. SIGNIFICANT NEXUS DETERMINATION A significant news analysis w~ assess the flow characteristics and functions of the tributary itself and the functions performed by any wetlands adjacent to the tributary to determine if they sigoiflcantly affect the chemical, physical, and biological integrity of a TNW. For each of the following situations, a significant news ezists if the tributary, in rnmbination with all of its adjacent wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW. Considerations when evaluating si~ni~ficant news indnde, but are not limited to the volume, dnralion, and frequency of the flow of water in the tributary and its prozimity to a TNW, and the functions performed by me tributary and afl its adjacent wethmds. It h not appropriate to deternn®e significant nexus based solely on any specific threshold of distance (e.g. between a tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or outside of a floodplain is not solely determinative of significant news. Draw connections between the features dornme~ed and the effects on the TNW, as identified in the Ropmws Guidance and discussed in the Instructional Gaideboolr. Factors to consider inducts, for ezampie: • Dees the tributary, in combination with its adjacent wetlands (if any), have the capacity to carry pollutants or flood waters to TNWs, or to reduce the amount of pollutants ar flood waters reaching a TNW? • Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support fimetions for fish and other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW? • Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that support downstream foodwebs? • Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, of biological integrity of the TNW7 Note: the above list of considerations is not indnsive and other functions observed or mown to occur should be docume~ed below: i. Significant nezns findings for non-RPW that has no adjaces,t wetlands and flows directly or indirectly into TNWs. Explain findings of presence or absence of significant nexus below, based on the tnbutary itself, then go to Section III.D: 2. Significant news findings for non-RPW and its adjacent wetlands, where the non-itPW flows directly or indirectly into TNWs. Explain furdings of presence or absence of sigaifrc~nt nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section IILD: 3. Significant news 5ndings for wetlands adjacent to an RPW but that do not directly abet the RPW. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to Section III.D: D. DETERIVIINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERSNVETLANDS ARE (CHECK ALL THAT APPLY): 1. TNWs and Adjacent Wetlands. Check all that appl}~ and provide size estimates in review area: TNWs: linear feet width (ft ). Ur, acres. Wetlands adjacent to TNWs: acres. RPWs that flon• directly or indirectly into TNWs. Tributaries of TNWs ~~fiere tributaries hpicall~- flow year-round are jurisdictional. Provide data and rationale indicating that tributan~ is perennial: Tributaries of TNW where tributaries have continuous flow "seasonally" 1 e.g., hpicall~• throe months each year) are jurisdictional. Data supporting this conclusion is provided at Section IILB. Provide rationale indicating that tributan~ flows seasonall~•: Provide estimates for jurisdictional waters in the review area (check all that apph~): Tributar<• waters: linear feet width (ft). Other non-wetland waters: acres. Identifi~ heel s) of waters: Wetlands: acres. F. NON~TURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY): If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers Wetland Delineation Manual and/or appropriate Regional Supplements. ~~ Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce. ^ Prior to the Tan 2001 Supreme Court decision in "Sti;-L1C'C," the revie~~~ area would have been regulated haled soleh~ on the "Migratory Bird Rule" (MBR). Waters do not meet the "Significant Nexus" standard, where such a finding is required for jurisdiction. Explain: Other. (explain, if not covered above): Provide acreage estimates for non-jurisdictional ~i~aters in the tevievv area, where the sole potential basis of jurisdiction is the MBR factors (i.e., presence of migratory birds, presence of endangered species, use of water for imgated agriculture, using best professional judgment (check all that apply): Non-wetland waters (i.e., rivers, streams): linear feet width (ft). Lakes/ponds: acres. Other non-wetland waters: acres. List type of aquatic resource: Wetlands: acres. Provide acreage estimates for non-jurisdictional waters in the review area that do not meet the "Significant Net-us'' standard. ~~fiere such a finding is required for jurisdiction (check all that apply ): Non-wetland waters (i.e., rivers, streams): linear feet, width (ft). Lakes/ponds: acres. ~, Other non-wetland ~~~aters: acres. List tape of aquatic resource: Wetlands: acres. SECTION IV: DATA SOURCES A. SUPPORTWG DATA. Data reviewed for JD (check all that apply -checked items shall be included in case file and, where checked and requested, appropriatel}• reference sources belon--: ~' Maps. plans, plots or plat submitted b}~ or on behalf of the applicant/consultant: Data sheets prepared/submitted by or on behalf of We applicant/consultant. ^ Office concurs with data sheets/delineatian report. ^ Office does not concur with data sheets/delineation report. Data sheets prepared by the Corps: Corps navigable waters' study: fa~ U.S. Geological Survey Hydrologic Atlas: ^ USGS NHD data. ^ USGS 8 and 12 digit HUC maps. ^ U.S. Geological Survey map(s). Cite scale & quad name: ^ USDA Natural Resources Conservation Service Soil Survey. Citation: Q National wetlands inventory map(s). Cite name: State/Local wetland inventory map(s): FEMA/FIRM maps: 100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929) [~ Photographs: ^ Aerial (Name & Date): or ^ Other (Name & Date): Previous determination(s). File no. and date of response letter: ^ Applicablelsupporting case law: Applicable/supporting scientific literature: ^ Other information (please specify): B. ADDITIONAL COMMENTS TO SUPPORT JD: NCDOT HAZARDOUS SPILL BASIN CHECKLIST Division: _L2-County: ['Tactnn Project ID: River Basin: Catawba Bridge No: Pipe Replacement Route: Stream: UT to Stanley Creek Water Quality Criteria: Yes No Stream Crossing Blue Line On USGS i-" r ORW r ~ WSI r r WS II,III OR IV, Crossing Within O.Smi of W.S. Critical Area r r Roadway Criteria: Route Designation- Yes No Arterial Urban r r Arterial Rural r ~ Additional Site Information: Yes No Is a Hazardous Spill Basin Required? r r Criteria Based Upon NCDOT "Best Management Practices for the Protection of Surface Waters" (March, 1997). ~ ` ~P ~ ~ ~f .P. ~~ it ~ .*'" -gyp ~~ P~t~ .e: ,t M ,~~a -~ a"~ 5. ° ti,.a° ~ fv~-~y.4 ~f ~ ~ ~~ ~~~r-c5 r,~~,.'jf ~~ ~ ~ -~i ,fj(/lr~j 76 } ~ t P ~,,, ~ 4., -,~„~.,. ~. ~~ ~~ * , r~ ~ ~~ ~~ ~.. ~ * a. ~' ~ ~ • ~..ti ref _ ~ ~ `r • ~,.~; Pipe w~~ ~ ~ . ~-~ ~ 'i' ~~~~ Replacement ~. ~ `g. ~ ,~ _. _ ~ ', ~ • ~ ~ ~. + ~ r~. ~~ ~i ate,. ~~ £ , ~ ~ „~'4F ~ ._~~ ~ '~ l _ ~ ~ '~'~ 'r ~~ '~'~ti ~"'x •1 i ~ ~. ~.__,.~~ ,r•ss "'ar'ks ¢ ~` ~~ s ~. rt ~ .+~ ~,.,,, ~~ . a" ry ~. 4.,,~ ,,,, ~ ~ .. ~ ~ 9 ~ ~f ~ ~ IF , Name: MT HOLLY Location: 035° 20' 48.30" N 081 ° 01' 30.51" W Date: 11/72007 Caption: Pipe Replacement SR-1934 (Lowland Dairy Rd) Ut to Stanely Scale: 1 inch equals 1000 feet Creek WS-IV Catawba River Basin Copyright (C) 1998, Maptech. Inc. PIPE REPLACEMENT BL. 8.36 oy tip. wv. l~l FIVE FEET OF CLA93 B RIPRAP TO BB ~ PLACED AT TSE PIPE INLET 1~ mil' ~''~ ~r ~l ~l rte', 4~pQ . as• so• sa• so• u• lo• a• I UPSTREAM GRADIENT=(11.30-7.66y9b' = 1.04% ~~al~~l~Et~~l.~~cr ~l 6'6' ~y ti'O py ~j ~~ ~O 6' '~ sa• so• %• m• u• lo• a• UPSTREAM GRADIENT=(11.80-7.66Y3b' = I.04% a-. c~rc ueLVllG ~ p2.e$'- EXISTING PIPE ELEVATION 60.00' STAGING AREA -'" ~ . ~ I ~E~12'x30' ` -+_~ ,~ ~~ ra LOWLAND DAIRY RD SR 1934 1 ~;I ~" M.~ ~o ° ~~ \ °~ I ~ I I .1 Its I '~~ ~o• s• lo' is so' sa•~ I DOWNSTREAM GRADIENT=(17.b4-17.OIy20'=2.6b% BS(+1 H! PS(--) BLEU. BM 100 ~ 226 10226 ]00 FNE FEET OF CLASS B RIPRAP TO BE PLACED AT THB PIPE OUTLET PROP. 60'96' WELDED STBBL PIPE WALE & BORE OVER EXISTING PD'B) PROP. PD'B ORADB = (12.83'- 11.3 ~0' = 2.55% 70.00' PROPOSED PIPE REPLACEMENT EL. 9.36 EXIST 60'- 30' CMP 'LADDER TO BB I WITH SHOT ROCE 4ss• ao• O1 418' SR-1934 (Lowland Dairy Rd) ~~~ ~ ..-- ~~ Downstream Outlet Inlet . .