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Engineer Cost Estimate_6-16-23Preliminary Opinion of Probable Construction Costs for Audubon Business Park 6/16/2023 SANITARY SEWER ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 1 8" PVC, SDR 35, 10-12' depth L.F. 288 $50.00 $14,400.00 2 Standard Manholes (8' deep or less) Each 1 $5,000.00 $5,000.00 3 Reconstruct Existing Manhole Each 2 $2,500.00 $5,000.00 TOTAL $24,400.00 WATERMAIN DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 4 6" PVC C900 L.F. 2013 $25.00 $50,325.00 5 8" PVC C900 L.F. 1518 $35.00 $53,130.00 6 10" PVC C900 L.F. 305 $45.00 $13,725.00 7 Hydrants (8' Bury) Each 13 $3,000.00 $39,000.00 8 6" Gate Valve and Box Each 13 $1,200.00 $15,600.00 9 8" Gate Valve and Box Each 2 $1,500.00 $3,000.00 10 10" Gate Valve and Box Each 2 $1,800.00 $3,600.00 11 Connect to Existing Watermain Each 4 $2,000.00 $8,000.00 12 Cast Iron Fittings Lb. 1907 $12.00 $22,884.00 TOTAL $209,264.00 STORM SEWER DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 13 12" H.D.P.E L.F. 809 $25.00 $20,225.00 14 15" H.D.P.E L.F. 1081 $35.00 $37,835.00 15 18" H.D.P.E. L.F. 320 $45.00 $14,400.00 16 24" H.D.P.E. L.F. 598 $55.00 $32,890.00 17 Catch Basin - Manholes, 48" with Steps Each 21 $2,000.00 $42,000.00 18 48" MH over existing storm sewer pipe Each 1 $3,000.00 $3,000.00 19 Control Structure Each 1 $2,750.00 $2,750.00 20 Manhole - 27" Diameter Each 1 $1,750.00 $1,750.00 21 Catch Basin - 24" x 36" Structure Each 3 $1,850.00 $5,550.00 22 12" H.D.P.E Flared End Section Each 8 $500.00 $4,000.00 23 18" H.D.P.E Flared End Section Each 2 $550.00 $1,100.00 24 24" H.D.P.E Flared End Section Each 2 $800.00 $1,600.00 25 Class A Rip Rap on Filter Fabric C.Y. 60 $66.00 $3,960.00 26 Geotextile Filter, Type 700X or equal S.Y. 250 $4.00 $1,000.00 27 Connect to Existing storm sewer pipe Each 1 $250.00 $250.00 TOTAL $172,310.00 GRADING DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 28 Common Excavation C.Y. 150000 $2.00 $300,000.00 29 Subgrade Preparation S.Y. 0 $31.00 $0.00 30 Subgrade Correction C.Y. 15000 $5.00 $75,000.00 31 Clearing & Grubbing Acre 15 $5,000.00 $75,000.00 32 Erosion Control (Silt Fence and/or Haybales) L.F. 10280 $3.30 $33,924.00 33 Inlet Protection Device Each 38 $300.00 $11,400.00 34 Orange limits of construction fence L.F. 2970 $2.50 $7,425.00 35 Topsoil Strip and Respread L.S. 1 $20,000.00 $20,000.00 TOTAL $522,749.00 Rehder & Associates, Inc.Page 1 of 3 Preliminary Opinion of Probable Construction Costs for Audubon Business Park 6/16/2023 ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT RESTORATION AND SPECIAL ITEMS DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 36 Mobilization L.S. 1 $30,000.00 $30,000.00 37 EC Blanket Category 20 S.Y. 21000 $3.00 $63,000.00 38 Seeding & Mulch Acre 6 $12,500.00 $75,000.00 39 Irrigation Allowance L.S. 1 $150,000.00 $150,000.00 40 Edging Allowance L.S. 1 $75,000.00 $75,000.00 41 Rock Mulch Allowance L.S. 1 $100,000.00 $100,000.00 42 EC Blanket Category 72 TRM S.Y. 85 $20.00 $1,700.00 43 Trees Each 338 $800.00 $270,400.00 44 Shrubs Each 538 $125.00 $67,250.00 45 Sod S.Y. 15520 $6.00 $93,120.00 TOTAL $925,470.00 BITUMINOUS AND CONCRETE PAVING DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 46 Bituminous Wear (SPWEA240B) Ton 3310 $75.00 $248,250.00 47 Bituminous Nonwear (SPNWB203B) Ton 4680 $70.00 $327,600.00 48 #2357 Bituminous Tack Coat (0.05gal/S.Y.) Gal. 1700 $4.00 $6,800.00 49 Class 5 (100% Crushed Quarry Rock) Ton 16160 $24.00 $387,840.00 50 Bituminous Saw Cut (Full Depth) L.F. 35 $15.00 $525.00 51 B612 Curb and Gutter L.F. 9555 $13.00 $124,215.00 52 3' Valley Gutter L.F. 605 $20.00 $12,100.00 53 Concrete pads (8") S.F. 85775 $10.00 $857,750.00 54 4" Concrete Walk (with 4" Granular Base) S.F. 17900 $3.50 $62,650.00 TOTAL $2,027,730.00 DEMOLITION ITEMS DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT 55 Bituminous Pavement Removal S.Y. 2050 $5.00 $10,250.00 56 Remove Concrete Curb & Gutter L.F. 1130 $4.00 $4,520.00 57 Remove Concrete S.Y. 325 $4.00 $1,300.00 TOTAL $16,070.00 TOTALS: SANITARY SEWER $24,400.00 WATERMAIN $209,264.00 STORM SEWER $172,310.00 GRADING $522,749.00 RESTORATION AND SPECIAL ITEMS $925,470.00 BITUMINOUS AND CONCRETE PAVING $2,027,730.00 DEMOLITION ITEMS $16,070.00 GRAND TOTAL $3,897,993.00 Rehder & Associates, Inc.Page 2 of 3 Preliminary Opinion of Probable Construction Costs for Audubon Business Park 6/16/2023 ITEM DESCRIPTION UNIT QUANTITY UNIT PRICE AMOUNT Rehder & Associates, Inc.Page 3 of 3