See full project map
Crews completed the overpass in July 2006. See
more photos of construction.
Project Facts
- Mowat Construction Company completed construction of the overpass in summer 2006.
- The bridge is funded through a combination of county and federal money.
- The project was built in two stages. During phase 1 we completed the overpass. During phase two we built the pedestrian trail connecting to the overpass.
May 2008
- We finished this project in April 2008.
- Snohomish County provided the additional funding needed to connect the trail to the bridge.
WSDOT built a bicycle/pedestrian bridge over I-5 and a connecting trail for Snohomish County to improve safety and traffic flow at the 128th Street interchange.
Why is WSDOT
building a bicycle/pedestrian trail and bridge over I-5?
The Interurban Trail is located along Interstate 5 in Snohomish County. At 130th Street SE the freeway divides the trail. Pedestrians and bicyclists must cross I-5 at the busy 128th Street SW interchange, posing a hazard to both drivers and pedestrians.
The End Result
The bridge will relieve some congestion for drivers exiting and entering I-5 at 128th Street and increase safety for pedestrians and bicyclists.
Project Benefits
- Improves Safety - On an average weekday, 60,000 drivers exit and enter I-5 at the 128th St. Interchange. Pedestrians and bicyclists are using this interchange to cross I-5 and continue on the trail. Currently, they cross three signaled on- and off-ramps and walk on the shoulder to cross the freeway. The overpass at 124th St. will provide a route for pedestrians away from traffic.
- Reduces Congestion - Currently, there are two types of traffic using the 128th Street overpass – motorized and non-motorized. A nearby overpass for non-motorized traffic means reduced wait times for drivers getting on and off the freeway because of pedestrians wanting to cross at the lights. This project will help improve traffic flow on the interchange and prevent backups on the freeway by minimizing foot traffic on the interchange.
What is the project timeline?
We built this project in two stages. We did not open the bridge for use until we finished the connecting trail.
2005
- August 2005 - The trail connection stage of the project was in property negotiations. We chose to proceed with construct of the bridge while federal funding was available.
- September 29, 2005 - We awarded the contract for building the bridge to Mowat Construction Company. November 7, 2005 - Crews began building the bridge.
2006
- Winter 2006 - Crews built the bridge supports on both sides of I-5.
- Spring 2006 - Crews successfully set girders to form the bridge above the freeway.
- Summer 2006 - Bridge construction complete.
- Winter 2006 - The cost to build the trail portion of this project now requires an additional $500,000. This rise is due to increases in construction costs and unforseen design problems. WSDOT worked with Snohomish County to secure the additional funding.
2007
- Spring 2007 - We will request bids from private contractors to build the trail portion.
- April 2007 - Snohomish County provides the additional $500,000 need to start construction on the trail portion of this project.
- November 2007 - We began building the connecting trail.
2008
- April 2008 - We completed this project and opened the new trail and overpass to the public.
Public Involvement
Your thoughts and opinions are important to us. For more details about project involvement, contact WSDOT Project Engineer Marlin Lenssen.
Noise line
If you would like to speak to someone about construction noise, please call our project office at 425-225-8770 (Everett).
Environmental Protection
As we built the overpass we incorporated state and county environmental guidelines. Some of these guidelines included erosion control methods to protect wetlands during construction and beautification of areas impacted by the work.
Please visit the WSDOT Environmental
Services Web site for more information.
Increasing safety is one of our priorities
This project will enhance safety for drivers, pedestrians and bicyclists by separating trail users from traffic on the interchange at 128th Street.
Will this project impact tribal resources?
At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.
Section 106 consultation will be initiated with the relevant tribes and other interested parties as the project develops.
Financial Information
This project was funded through the following fund sources:
- Existing Funds - $4.5 million (These funds are provided by Snohomish County and federal grants.)
- Other Agency Funds - $300,00 (These funds are provided by the State Transportation Improvement Board.)
- Total Funding From All Sources - $4.8 million
(Funding reflects both stages of construction - the overpass and connecting path)
How can I get more information?
Contact:
Project Engineer Marlin Lenssen
9021 El Capitan Way
Everett, WA 98208-3637
Phone: 425-225-8770
Email: LenssMJ@wsdot.wa.gov
or
WSDOT Communications Meghan Soptich
15700 Dayton Avenue North
PO Box 330310, MS: 103
Seattle, WA 98133
Phone: 206-440-4704
Email: sopticm@wsdot.wa.gov
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