I-5 - SR 502 - Interchange

Quarterly Project Report Update for Quarter Ending March 2008

Project Title & Location
I-5 / SR 502 Interchange

Project Description
This new interchange, connecting I-5 to State Route 502, will reduce congestion, improve safety and provide more direct access from Interstate 5 to north Clark County and Battle Ground.

Contractor/Consultant
The contract was awarded to Kerr Contractors, Inc. of Woodburn, OR, on February 16, 2007.

Recent Progress
The Winter construction activities have been focused on retaining walls, the bridge superstructure and maintenance of erosion control features. Bridge girders are in place and work is proceeding on the bridge deck. The project is on schedule for its 2009 completion date. 

Design Construction Impacts

Environmental Impacts / Compliance
Approximately 20 acres of new wetland will be created to satisfy environmental permitting requirements for the project. A fish passage barrier has been replaced with a new culvert that is fish passable.

Impacts to Traffic
There have been daily single lane closures of the left lane of I-5 NB for access into the median for superstructure construction. An access road has been constructed in the median in order to eliminate all I-5 SB left lane closures. The speed limit on I-5 has been lowered to 60 mph for the duration of the project. In January, night closures of each direction of I-5 were completed for girder installations. Detours using a median crossover to run traffic down the opposite side of I-5 were successfully utilized. Deck work platforms were installed at the same time also helping to reduce the number of I-5 closures from ten to four.

Project Milestones Scheduled Attained Milestone Outlook
Preliminary Engineering September 2003 September 2003 Complete
Environmental Documentation Complete November 2005 October 2005 Complete
Right of Way Complete November 2006 December 2006 Complete
Ad Date December 2006 December 2006 Complete
Operationally Complete June 2009
Project Cost Summary: Dollars in
millions
Percent
of Total

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

Preliminary Engineering $3.7 6.5%
Right-of-Way $11.5 20.4%
Construction $41.0 73.1%
Funded Project Costs $56.1 100%

Nickel funds included in above costs

$56.1 100%

2005 Transportation Partnership Account

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

Chris Tams, Area Engineer at 360-759-1310, or e-mail: swGorge@wsdot.wa.gov.