HomeMy WebLinkAboutBenson Rd Cost estimate Summary 4-10-07Water Line Relocation Benson Road I-405 Overpass
Summary - Engineer's Opinion of Probable Cost
Estimate Date
10-Apr-06
DIVISION 1 - GENERAL REQUIREMENTS 81,000.00$
DIVISION 2 - EARTHWORK 45,120.00$
DIVISION 3 - QUARRY PIT AND STOCKPILING -$
DIVISION 4 - BASES 8,280.00$
DIVISION 5 - SURFACE TREATMENTS AND PAVEMENTS 86,334.00$
DIVISION 6 - STRUCTURES -$
DIVISION 7 - DRAINAGE, STORM, SEWER, WATER 383,080.00$
DIVISION 8 - MISCELLANEOUS CONSTRUCTION 21,962.50$
DIVISION 9 - MATERIALS -$
Subtotal Direct Construction Cost 625,776.50$
Sub-Total Direct Construction Costs $625,777.00
Contractor's Field Overhead @ 8%$50,062.00
Contractor's Fee @ _15_% (Office Ovhd and Profit) $93,867.00
Sub-Total $769,706.00
Contractor Bonds and Insurance @ 2%$0.00
Sub-Total $769,706.00
Contingency @ 5%$38,485.00
Sales Tax Estimate @ _8.33_ %$67,322.00
Total Current Construction Estimate $875,513.00
Escalation to Mid-Point of Construction $19,699.00
Forecast Construction Estimate at Bid $895,212.00
0 $0.00
Escalation
ENR 20 City Cost Index @ Time-Of-Estmate 8611.76
Date of Estimate Sept, 2006
Date of Nearest Index 9/5/2006
Bid Date 5/1/2007
Notice to Proceed 5/15/2007
Estimated Construction Start Date 6/1/2007
Estimated Construction Time (low/high working days)45/120
Scheduled Substantial Completion Date 10/15/2007
Scheduled Final Completion Date 12/31/2007
Months from Estimate to Mid Point of Construction 6
Previous 12 Months Escalation 4.50%
Escalation from Estimate to Mid Point of Construction 2.25%
Notes:
1 Dec estimate O&P, GC's, revised to be additive, not compounded.
2 Bonds and insurance removed & considered to be covered in GC's
3 Sept 06 estimate included a 5% contingency ($832K)
4 ENR index increased to offset bid timing uncertainties
Benson Rd Cost estimate WSDOT V3.0 4-10-07.xls 1 of 1