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HomeMy WebLinkAbout20042059 Ver 2_401 Application_20091030a 2301 Remoods Drive Dewberry Suite 200 Raleigh, NC 27607 October 30, 2009 Ms. Cyndi Karoly 401 Oversight/Express Permitting Unit Supervisor NC Division of Water Quality 401/Wetlands Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 919.881.9939 919.881.9923 fax www.dewberry.com Reference: City of Raleigh Dunn Road Sanitary Sewer Extension Dewberry Project No. 50020200 Dear Ms. Karoly: off- 2C05Q 0C- Q?c??odL5? OCT, 3 0 2009 DEKR STTEORi? WATERBRAW11 t?ETUwDS raw Enclosed are five copies of a Pre-Construction Notification (PCN) Permit Application Package for the City of Raleigh Dunn Road Sanitary Sewer Extension project. For your review we have enclosed the following: • Five copies of the PCN Application Form • Five copies of the Stream and Buffer Impacted Areas Drawing • Five copies of Vicinity Map, USGS Map, and Soils Map Only Buffer Rule approval is sought (no application fee is included). Approximately 91,500 square feet of Zone 1 Buffer and approximately 95,000 square feet of Zone 2 Buffer will be impacted during construction. Approximately 80,000 square feet of the Zone 1 impact is in the existing easement leaving 11, 661 square feet of Zone 1 impact that will require mitigation. Since this is a sanitary sewer utility installation, Zone 2 impacts do not require mitigation. The enclosed information documents and describes the anticipated impacts. Please call with any questions regarding this project. Sincerely, Dewberry & Davis, Inc. tin Story, E.I., LEED Civil Designer Enclosures P:\50020200\Adm\Permits\PCN Permit Application\2009.10.30 401-DWQ Cover Letter-Dunn Road SS Extension.doc Dewberry & Davis, Inc. o?0F W A TF9pG O 'c ?- ),OsA u Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre-Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: ®Section 404 Permit El Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ? Yes ® No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ® 401 Water Quality Certification -Regular ? Non-404 Jurisdictional General Permit ? 401 Water Quality Certification - Express ® Riparian Buffer Authorization 1e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ? Yes ® No For the record only for Corps Permit: ? Yes ® No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. ® Yes ? No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ? Yes ® No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No 2. Project Information 2a. Name of project: Dunn Road Sanitary Sewer Extension 2b. County: Wake 2c. Nearest municipality/ town: Raleigh p 2d. Subdivision name: N/A 2e. NCDOT only, T.I.P. or state project no: N/A O?,T 3 3. Owner Information DEMR_ 3a. Name(s) on Recorded Deed: City of Raleigh VLIZANDS N 3b. Deed Book and Page No. 3c. Responsible Party (for LLC if applicable): City of Raleigh Public Utilities Department 3d. Street address: 219 Fayetteville Street Mall 3e. City, state, zip: Raleigh, NC 27602 3f. Telephone no.: 919-857-4540 3g. Fax no.: 919-857-4545 3h. Email address: Page 1 of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Applicant Information (if different from owner) 4a. Applicant is: ? Agent ? Other, specify: 4b. Name: 4c. Business name (if applicable): 4d. Street address: 4e. City, state, zip: 4f. Telephone no.: 4g. Fax no.: 4h. Email address: 5. Agent/Consultant Information (if applicable) 5a. Name: Mary T. Brice 5b. Business name (if applicable): Dewberry & Davis, Inc. 5c. Street address: 2301 Rexwoods Drive, Suite 200 5d. City, state, zip: Raleigh, NC 27607-3366 5e. Telephone no.: 919-881-9939 5f. Fax no.: 919-881-9923 5g. Email address: mbrice@dewberry.com Page 2 of 11 B. Project Information and Prior Project History 1. Property Identification Follows existing sanitary sewer easement along 1 a. Property identification no. (tax PIN or parcel ID): properties owned by Wake County and other privately owned properties. 1b. Site coordinates (in decimal degrees): Latitude: - Longitude: - (35.9107) (78.5758) 10,507 LF of 24" Sanitary Sewer Line with easements 1c. Property size: widths ranging from 20' to 60'. 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Unnamed tributary to Neuse River proposed project: 2b. Water Quality Classification of nearest receiving water: WS-IV; NSW 2c. River basin: Neuse 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: Existing sanitary sewer easement in existing residential area. 3b. List the total estimated acreage of all existing wetlands on the property: Approximately 16,900 square feet of wetlands are within a close proximity of the project. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: A maximum of 7,000 LF of stream are within a close proximity of the project. 3d. Explain the purpose of the proposed project: The purpose of the project is installation and replacement of sanitary sewer lines. Approximately 6,800 linear feet of the 24" sanitary sewer line will be replacement of an existing line. Approximately 3,700 LF of sanitary sewer line will be new and will have no impact on buffers, streams, and wetlands. 3e. Describe the overall project in detail, including the type of equipment to be used: Construction activity will consist of installation of 10,507 linear feet of sanitary sewer line. Some of the construction will be in wooded areas that must be cleared and some of the construction will be parallel to or in existing roadways. It is anticipated that earth moving equipment such as hydraulic excavators and/or bulldozers will be used. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property/ ? Yes ? No ®Unknown project (including all prior phases) in the past? Comments: 4b. If the Corps made the jurisdictional determination, what type ? Preliminary ? Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Soil Horizons Name (if known): John Davis Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. 5. Project History 5a. Have permits or certifications been requested or obtained for ® Yes ? No ? Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. DWQ Project #04-2059; USACE Action ID 200520157. Page 3 of 11 PCN Form - Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 6. Future Project Plans 6a. Is this a phased project? ? Yes ® No 6b. If yes, explain. Page 4 of 11 C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ® Wetlands ® Streams - tributaries ® Buffers ? Open Waters ? Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ - non-404, other) (acres) Temporary T W1 ? P ®T Sanitary Sewer unknown ® Yes ® Corps 0.15 Installation ? No ® DWQ W2 ? P ®T Sanitary Sewer unknown ® Yes ® Corps 0.07 Installation ? No ®DWQ W3 ? PET Sanitary Sewer unknown ® Yes ® Corps 0 02 Installation ? No ® DWQ . W4 ? P ®T Sanitary Sewer unknown ® Yes ® Corps 0.01 Installation ? No ®DWQ W5 ? P ®T Sanitary Sewer unknown ® Yes ® Corps 13 0 Installation ? No ®DWQ . W6 ? P ? T ? Yes ? Corps ? No ? DWQ 2g. Total wetland impacts .39 .3 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ - non-404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ? PET Perpendicular Tributary to Neuse ? PER ® Corps 9 60 crossing w/ Sewer (Basin 15, Stream 1) ® INT ® DWQ S2 ? P ®T Perpendicular Tributary to Neuse ? PER ® Corps 10 60 crossing w/ Sewer (Basin 15, Stream 1) ® INT ® DWQ S3 ? P ® T Perpendicular Tributary to Neuse ® PER ® Corps 17 42 crossing w/ Sewer (Basin 15, Stream 1) ? INT ® DWQ S4 ? P ® T Perpendicular Tributary to Neuse ® PER ® Corps 11 46 crossing w/ Sewer (Basin 15, Stream 1) ? INT ® DWQ S5 ? P ? T ? PER ? Corps ? INT ? DWQ S6 ? P ? T ? PER ? Corps ? INT ? DWQ 3h. Total stream and tributary impacts 208 3i. Comments: 3 ?A Page 5 of 11 PCN Form - Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individual) list all open water impacts below. 4a. 4b. 4c. 4d. 4e. Open water Name of waterbody impact number - (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary T 01 ?P?T 02 ?P?T 03 ?P?T 04 ?P?T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If and or lake construction proposed, then complete the chart below. 5a. 5b. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? ? Yes ? No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: 6. Buffer Impacts (for DWO) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an impacts require mitigation, then you MUST fill out Section D of this form. 6a. ® Neuse ?Tar-Pamlico ? Other: Project is in which protected basin? ? Catawba ? Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number - Reason for Buffer Zone 1 impact Zone 2 impact Permanent (P) or impact Stream name mitigation (square feet) (square feet) Temporary T required? B1 ® P ? T Sanitary Sewer line Installation Unnamed Tributary ® Nos 79,862 60,901 B2 ® P ? T Sanitary Sewer line Installation Unnamed Tributary Nos 11,661 33,934 6h. Total buffer impacts 91,523 94,835 6i. Comments: Page 6 of 11 D. Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. The sanitary sewer line in the areas of impacts is in the same location as the existing line to minimize impacts. The replacement has been designed to disturb the minimal amount of area required to install the line. The area will be returned to existing grade once the sanitary sewer is installed. The disturbed buffers will be re-vegetated with a buffer seed mix based on recommendations in the Ecosystem Enhancement Guidelines for Riparian Buffer Restoration. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Contractor will minimize impacts to area by confining work area to limits of sanitary sewer easement and using erosion control devices. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State? ? Yes ® No 2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps 2c. If yes, which mitigation option will be used for this project? ? Mitigation bank El Payment to in-lieu fee program ? Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) 3c. Comments: 4. Complete If Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. ? Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold 4d. Buffer mitigation requested (DWQ only): 4e. Riparian wetland mitigation requested: acres 4f. Non-riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. Page 7 of 11 PCN Form - Version 1.3 December 10, 2008 Version 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWO 6a. Will the project result in an impact within a protected riparian buffer that requires ® Yes ? No buffer mitigation? 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. 6c. 6d. 6e. Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (square feet) Zone 1 Stream restoration/stabilization 11,661 3 (2 for Catawba) 34,983 Zone 2 Stream restoration/stabilization 33,983 1.5 0 6f. Total buffer mitigation required: 34,983 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). The City will purchase riparian buffer mitigation credits from Forest Creek Mitigation Bank. Forest Creek Mitigation Bank states that they have over 200,000SF of buffer credits available and will provide a receipt and letter once the square footage of required mitigation is confirmed by DWQ. 6h. Comments: Page 8 of 11 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1 a. Does the project include or is it adjacent to protected riparian buffers identified ® Yes ? No within one of the NC Riparian Buffer Protection Rules? 1b. If yes, then is a diffuse flow plan included? If no, explain why. Comments: Work is installation of underground sanitary sewer line. Area will be ? Yes ® No returned to original grade. There is no change in flow patterns. 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? No change in impervious area 2b. Does this project require a Stormwater Management Plan? ? Yes ® No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: The work is for installation of an underground sanitary sewer line. There is no change in impervious area therefore a stormwater management plan is not required. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: ? Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program ? DWQ 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? City of Raleigh ? Phase II 3b. Which of the following locally-implemented stormwater management programs ? NSW ? USMP apply (check all that apply): ? Water Supply Watershed ® Other: Not Required 3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No attached? 4. DWQ Stormwater Program Review ? Coastal counties ? HQW 4a. Which of the following state-implemented stormwater management programs apply ? ORW (check all that apply): ? Session Law 2006-246 ? Other: 4b. Has the approved Stormwater Management Plan with proof of approval been attached? ? Yes ? No 5. DWQ 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No 5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No Page 9 of 11 PCN Form - Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ? Yes ® No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1 c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.) ? Yes ? No Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after-the-fact permit application? ? Yes ® No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. 4. Sewage Disposal (DWQ Requirement) 4a. 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. N/A Page 10 of 11 PCN Form - Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ? Yes ? No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act El Yes El No impacts? 5c. If yes, indicate the USFWS Field Office you have contacted. El , Raleigh ? Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ? No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ? Yes ? No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in a FEMA-designated 100-year floodplain? ® Yes ? No 8b. If yes, explain how project meets FEMA requirements: Project is installation of sanitary sewer lines therefore no impacts to FEMA requirements. 8c. What source(s) did you use to make the floodplain determination? FEMA Flood Map Number 3720172800J J. 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C=J U) a U) a) It C) 0 0 N N m m a T a) 7 N p T U) m O .r U ? o 0- U) ° -0 O U m c O m z y a7 7 y O ? y O d ? ?d 7 y C Z U Jk Soil Map-Wake County, North Carolina Soils Map for Dunn Road SS Extension Map Unit Legend Wake County, North Carolina (NC183) Map Unit Symbol Map Unit Name Acres in AO1 Percent of AO1 AfB Altavista fine sandy loam, 0 to 6 percent slopes, 3.5 0.3% rarely flooded A B A lin ravel) sand loam, 2 to 6 percent 12.3 1.0% slopes AgC Appling gravelly sandy loam, 6 to 10 percent 88.1 7.1% slopes ApB Appling sandy loam 2 to 6 percent slopes 50.8 4.1% ApB2 Appling sandy loam, 2 to 6 percent slopes, 119.5 9.7% moderately eroded ApC Appling sandy loam, 6 to 10 percent slopes 48.4 3.9% ApC2 to 10 percent slopes, loam, Appling 20.7 1.7% moderately eroded ApD Appling sandy loam, 10 to 15 percent slopes 118.9 9.6%1 , CeB Cecil sandy loam, 2 to 6 percent slopes 56.1 4.6% CeB2 Cecil sandy loam, 2 to 6 percent slopes, 84.6 6.9%' moderately eroded CeC2 Cecil sandy loam, 6 to 10 percent slopes, 101.0 8.2%:! I moderately eroded CeD Cecil sandy loam, 10 to 15 percent slopes 81.4 6.6% C B2 Cecil ravel) sand loam, 2 to 6 percent slopes, 6.9 0.6% - - -- moderately eroded - - - 9 gravelly sandy slopes loam, 6 to 10 percent t 39.4 3.2% C C2 1 9 Cecil sandy loam, 6 to 10 slo es, gravelly Y percent P 36.0 2.9% moderately eroded CIC3 Cecil clay loam, 6 to 10 percent slopes, severely 1.0 0.1% ' eroded DuB { Durham loamy sand, 2 to 6 percent slopes i 30.5 2.5° EnB2 Enon fine sandy loam, 2 to 6 percent slopes, 16.4 1.3%! eroded moderately EnD2 I Enon fine sandy loam, 10 to 15 percent slopes, 3.9 0.3% moderately HeC2 Helena sandy loam, 6 to 10 percent slopes, + 0.6 0.0% moderately eroded LoC percent slopes Louisburg loamy sand, 6 to 10 ercent slo es 4.5 0.4/o ? - - - LoD I - _-_ - ? 9 Y Louisburg loamy sand, 10 to 15 percent slopes -__ _ 0.0! - -- 0.0% PaF- - i j Pacolet sandy loam, 15 to 45 percent slopes 18.6 1.5%1 PgF Pacolet-Gullied land complex, 4 to 25 percent 8.4 0.7% I', slopes VaC2 Vance sandy loam, 6 to 10 percent slopes, 4.7 0.4% eroded moderately W f Water 0.9 0.1% B,? Natural Resources Web Soil Survey 2.1 4/1/2009 r? Conservation Service National Cooperative Soil Survey Page 3 of 4 Soil Map-Wake County, North Carolina Soils Map for Dunn Road SS Extension I Wake County, North Carolina (NC183) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI WhA Warne fine sandy loam, 0 to 2 percent slopes, 9.1 0.7% occasionally flooded WkE Wake-Wateree complex, 10 to 25 percent 5.6 0.5% slopes, very rocky WmE Wedowee sandy loam, 15 to 25 percent slopes 60.3 4.9% WnA Wehadkee silt loam, 0 to 2 percent slopes, 15.8 1.3% frequently flooded WoA Wehadkee and Bibb soils, 0 to 2 percent slopes, 74.2 6.0% frequently flooded } WwC Wilkes loam, 2 to 10 percent slopes 8.7 o 0.7% WwE Wilkes loam, 10 to 20 percent slopes 0.8 0.1% WwF Wilkes loam, 20 to 45 percent slopes 56.0 4.5% WyA Worsham sandy loam, 0 to 3 percent slopes 44.911 3.6% Totals for Area of Interest -- 1,232-7 I - - -- 100.0 % U?? Natural Resources Web Soil Survey 2.1 4/1/2009 Conservation Service National Cooperative Soil Survey Page 4 of 4 C5 CITY OF RALEIGH - OPERATIONS CENTER OPINION OF PROBABLE COST October 27, 2009 Option #1 DESCRIPTION QUANTITY UNIT PRICE TOTAL Mobilization LS $2,200 $2,200 Remove & Dispose Concrete 2,720 SY $15 $40,800 Earthwork LS $?1114M $20,000 Concrete (4000 PSI) 225 SY $50 $11,320 12" ABC (Base Course) G.6v E"-ff G "V 7,500 SY $19 $144,900 Fill Material 2,500 CY $20 $50,000 Barrier Wall 450 LF $25 $11,250 Fence Relocation 100 LF $3f 7,6 $3,000 Temporary Erosion Control Measures 1 LS $5;980 to boo $5,000 SS MH Risers 2 EA $500 $1,000 Seeding 1 LS $1,000 $1,000 Subtotal $290,470 10% Contingency $29,047 Total $319,517 l Pre-Engineered Storage Facility 1 LS 100,000 $ 100,000 Combined Total $ 419,517 Bid proposal to be a lump sum contract. Thickness in Cost/Ton (inches) Cost/Sy Asphalt (surface Course) $ 78 3 $ 13 Asphalt {Intermediate Course) $ 82 4 $ 19 Aggregate Base Course (CABC) $ 28 12 $ 19 Concrete (4000 PSI) $ 125 7 $ 50 S vii st ok P:\50001568\Tech\2009.10.26 - Health-Safety Cost Estimate.xls