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Interstate 5 Preservation Project: Tualatin River Bridge to Willamette River (Wilsonville)
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Project Information
Work began June 2009 on an Oregon Department of Transportation project to repave a 7-mile stretch of Interstate 5 from the Tualatin River to the Willamette River in Wilsonville.  The contractor is Kodiak Pacific Construction of Sherwood, OR.  This $23 million construction project includes the following elements:
 
• Grind, inlay (repave), and restripe both directions of I-5 within the project limits
• Repave select freeway on-and off-ramps
• Add an auxiliary lane on I-5 northbound from the Boone Bridge over the Willamette River to the Wilsonville Rd. off-ramp
• Add an auxiliary lane on I-5 southbound from Interstate 205 southbound to the Elligsen Rd./N. Wilsonville off-ramp
• Build a new sound wall along I-5 southbound from I-205 to just north of Norwood Rd. in Tualatin (more information below)
• Widen I-5 at the Nyberg St. off-ramp from I-5 southbound to add an additional exit lane
• Widen left shoulders and select right shoulders of the freeway
• Improve guardrail, barrier, and highway signage
• Grind and inlay bridge decks on the I-5/I-205 ramps
• Upgrade bridge rails on the Wilsonville Rd. overpasses and I-205 overpasses
 
View a map of the project detailing the location of the different improvements.
 
The Interstate 5 Preservation Project uses federal stimulus funds.  Approximately $5 million – or 22% of the $23 million project - is funded by the American Recovery and Reinvestment Act of 2009.

Schedule
The contractor began work in June 2009.  Project completion is scheduled for spring 2011. 
 

Traffic impacts
Project construction may create congestion and delays on Interstate 5 and on intersecting local streets.  Due to the high traffic volumes on I-5, it is required that all lanes be open without restrictions during daytime hours.  Closing the lanes during the day would create backups and serious safety concerns.  Because of this restriction, traffic impacts and most work will be conducted during overnight hours.  In general, work hours will be Monday through Friday nights, 8 p.m. to 5 a.m.  Highway lanes and on- and off-ramps will be temporarily closed during nighttime hours.  Work that can be accomplished off the roadway will take place during daytime hours as much as possible and will not impact traffic.
 
Motorists are reminded that traffic fines are doubled in a construction zone.  There will be enhanced enforcement in the project area.  Please drive safely.
 
Read the weekly construction news which details the traffic impacts for the following week, updated every Friday.

Nighttime noise
Nighttime construction noise may be audible to residents living along the project corridor.  However, noise levels dissipate quickly as distance from the source increases.  It is ODOT’s intent to keep those nearest the work notified of nighttime, noise-generating activities.  A phone number is available for reporting noise problems or incidents requiring immediate attention.  Please call 503-412-2330, available 24 hours a day for problems or incidents requiring immediate attention.

New sound wall in Tualatin
There are a number of highway improvements that can trigger a noise study and one of them is the addition of auxiliary lanes that are at least 1.5 miles long.  The new auxiliary lane on I-5 southbound from I-205 to Elligsen Rd. meets those requirements.   The noise study recommended that a sound wall be included with the project.  The sound wall meets ODOT’s cost and noise reduction criteria, reducing noise by 5 dBA or more at 61 residences, and providing many with reductions of 8 to 11 dBA at a cost considered reasonable under ODOT criteria.
 
The new sound wall has been constructed and is 3,850 feet long and starts at approximately SW Ponca Ct. in Tualatin and continues south and overlaps with the existing sound wall just north of Norwood Rd.  Wall height varies from 6 to 20 feet depending on the terrain. 

ODOT Contact Information
For more information about this project, please contact:
Lili Boicourt, ODOT Community Affairs Coordinator
503-731-8247; Lili.D.Boicourt@odot.state.or.us
 
 
To report noise problems or incidents requiring immediate attention (24-hour hotline): 503-412-2330.