I-90 - Replaces Potato Hill Bridge - Complete December 2006

Quarterly Project Report Update for Quarter Ending June 2006

Project Title & Location
I-90/Moses Lake Area-Bridge Clearance – Moses Lake

Project Description
Acquire right of way and replace the low clearance Potato Hill Bridge to eliminate a detour now required for legal-height trucks, and reduce the risk of over-height trucks hitting the bridge on Interstate 90. Design is funded from current revenue sources. Right of way and construction are funded from these new revenues.

Contractor/Consultant
Weaver Construction Company.

Recent Progress

The Contractor's crews have constructed the abutment walls, retaining walls and curtain walls on piers 1 and 3 and have constructed the center pier in preparation of setting the deck panes in July.

Design Construction Impacts
The project required the relocation of several utilities in the area including Grant County PUD, Quest, a private irrigation line and a City of Moses Lake sewer main.  Coordination with the City of Moses Lake will be ongoing.

Environmental Impacts / Compliance
Biological Assessment was completed in May 2001.  Environmental Classification Summary signed May 2001.  SEPA, Determination on Non-Significance checklist signed May 1995.

Impacts to Traffic
Traffic on I-90 will experience temporary lane closures during bridge construction.  Traffic on Potato Hill Rd. will be allowed to travel over the existing bridge during the construction of the new bridge and will be directed under temporary traffic control while tie ins are made to the new alignment when the new bridge is ready.

Project Milestones Scheduled Attained Milestone Outlook
Contract Advertised November 2005 11/21/05 Complete.
Contract Awarded January 2006 1/17/06 Complete.
Groundbreaking Spring 2006 3/6/06 Complete.
Open to Traffic Fall 2006 No issues at this time.
Project Cost Summary: Dollars in
millions
Percent
of Total

Planned vs. Actual Expenditures
(Total Project Cost)
Project Expenditure Chart

Preliminary Engineering $0.32 m 8.3 %
Right-of-Way $0.34 m 8.8 %
Construction $3.20 m 82.9 %
Funded Project Costs $4.61 m 119 %

Nickel funds included in above costs

$3.58 m 77%

2005 Transportation Partnership Account

$0.750 16%

  For more information, go to www.wsdot.wa.gov/projects

Mike Fleming, WSDOT Project Engineer @ (509) 667-2870 or E-mail: Flemim@wsdot.wa.gov