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ST0702-EM070705>angine�r!s Opinion w City of Coppell, Texas of Probable ' outb CoppelIRdImprovements " Caiistruetio.Cost FREESP * Nt HOLS Conceptuat Cost Estimate I2eipiioai�,' Qumttity ,I7i�it ,: UnituAG,= �TotCost UNIT L GENERAL. I -1 Mobilization (5 %) 1 LS $47,600.00 $47,600.00 I -2 Preparing Right -of -Way (3 %) 1 LS $28,600.00 $28,600.00 I -3 Unclassified Excavation (Roadway) 4,640 CY $8.00 $37,120.00 I -4 Remove Existing Asphalt 5,340 SY $6.00 $32,040.00 I -5 Embankment 4,640 CY $9.00 $41,760.00 I -6 Clearing and Grubbing 4.13 AC $2,500.001 $10,325.00 1 -7 Stockpile and Spread 4 -Inch Depth Topsoil 2,000 SY $1.50 $3,000.00 I -8 Bermuda Hydro mulch Seeding (Including Fertilizer & Water) 2,000 SY $0.50 $1,000.00 I -9 Temporary Erosion, Sediment & Water Pollution Control 1 LS $23,000.00 $23,000.00 1 -10 Prepare and Implement Traffic Control 9 MON $2,500.00 $22,500.00 1 -11 1 Remove Existing 8" and 2" Waterline 3,980 LF $7.00 $27,860.00 Category Total $274,805,00 UNIT H: PAVING IMPROVEMENTS H -1 8" Lime Stabilized Subgrade 12,340 SY $3.00 $37,020.00 H -2 Lime for Stabilization (50lbs /SY) 310 TON $130.00 $40,300.00 II -3 8" Concrete Pavement Class "C" (71'13-13, TYP) 11,890 SY $40.00 $475,600.00 1I -4 6" Concrete Pavement Class "C" Driveways 225 SY $55.00 $12,375.00 H -5 Type IMonolithic Curb 4,200 LF $1.00 $4,200.00 H -6 4" Concrete Sidewalk (5 feet wide Sidewalk) 20,000 SF $3.50 $70,000.00 II -7 Sidewalk Ramp 14 EA $1,000.00 $14,000.00 H -8 Pavement Markings 10,000 LF $1.50 $15,000.00 II -9 Temporary Asphalt 320 TON $100.00 $32,000.00 UNIT III DRAINAGE IMPROVEMENTS III -1 10' Recessed Curb Inlet 6 EA $2,850.00 $17,100.00 III -2 21" RCP (C1assM) 500 LF $65.00 $32,500.00 111 -3 27" RCP (Class 111) 200 LF $85.00 $17,000.00 III -5 4x4 Junction Box Manhole 1 EA $3,000.00 $3,000.00 III -6 Trench Safety System for Trench Depth over 5 -FT 700 LF $1.50 $1,050.00 Category Total 17 $70,650.04 UNIT Vi : LANDSCAPE AND IRRIGATION IMPROVEMENTS vI -1 Large Canopy Trees (minimum 4" cal installation) 10 EA $500.00 $5,000.00 VI -2 Irrigation Appurtenances 1 LS $5,000.00 $5,000.00 Category Total "$10,1)00.00 Subtotal $1,056,000.00 Construction Contingency 20% $211,200.00 Total Construction Cost Estimate $1,267,200.00