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Road construction and maintenance

Road construction and maintenance

NE 10th Avenue improvements

  • Project numbers: 370922 and Sketch of proposed NE 10th Avenue bridge over Whipple Creek.323322
  • Project limits: NE 10th Avenue, from NE 149th Street to NE 154th Street, and NE 10th Avenue, from NE 154th Street to NE 164th Street.
  • Project type: Extend, widen and improve the existing road, along with building a bridge over Whipple Creek.
  • Current status: Extensive traffic, design and environmental work under way; construction likely to be phased and could begin in 2016.

Project update
An open house on NE 10th Avenue bridge and roadway improvements is scheduled for 4 to 7 p.m. Thursday, Sept. 12, 2013, at the Public Safety Complex, 505 NW 179th St. County staff will be available to discuss different aspects of the project. Comment forms will be available for people to submit their thoughts and suggestions.

Current construction
A contractor working for Clark County is widening and improving a section of NE 10th Avenue, from NE 141st Street to NE 149th Street. The project will provide one travel lane in each direction, along with a center-turn lane, bicycle lanes and sidewalks. The work is schedule to wrap up in fall 2013.

Overall project description
This project involves improving and connecting NE 10th Avenue along the west side of Interstate 5, which includes building a bridge over Whipple Creek.

Existing portions of NE 10th Avenue in this area are between 10 and 20 feet wide, with little or no shoulders.

The project would build one travel lane in each direction, along with a center-turn lane, pedestrian-bicycle amenities and facilities to collect and treat polluted storm runoff.
Location of new bridge over Whipple Creek.

Project purpose
The proposed NE 10th Avenue bridge and roadway improvements would:

  • Improve traffic circulation by closing a gap in the existing transportation grid system, upgrading a roadway that does not meet current county road standards and improving access to recreational facilities.Photo of existing section of NE 10th Avenue.
  • Enhance public health and safety by providing an alternate route for emergency responders, constructing safe bicycle and pedestrian facilities and creating a secondary access to the Clark County Fairgrounds for disaster response.
  • Support existing land uses and zoning, including providing an opportunity to extend utility lines across Whipple Creek, improving access to existing commercial and industrial properties and supporting Clark County's 20-year comprehensive plan.

Related project
Clark County already has completed work on its portion of the Salmon Creek Interchange Project, a $133 million joint project between Clark County and the Washington State Department of Transportation. The interchange project will ease congestion, improve safety and support economic development

The interchange project involved improving NE 10th Avenue, from NE Tenny Road to NE 141st Street, and included construction of the first roundabout in unincorporated Clark County, at NE Tenny Road and NE 136th Street..

Project challenges
A bridge over Whipple Creek would be more than twice as long as the Highway 99 bridge over Salmon Creek and almost twice as high. It must meet traffic needs for the next 75 to 100 years.

The project will require an extensive enviroGraphical depiction of new bridge over Whipple Creek.nmental permitting process that could take 18 to 24 months. The county also will need to provide extensive collection and treatment of polluted storm runoff.

Finally, the county will try to secure federal funding for the project, particularly the new bridge over Whipple Creek.

Funding and schedule
The NE 10th Avenue improvement has been split into two separate projects: NE 149th Street to NE 154th Street; and NE 154th Street to NE 164th Street, which would include the new bridge.

Current estimates place the total project cost at $35 million. Clark County expects to tap a number of different funding sources to pay for the project, as well as seek partnerships with property owners and developers.

Because of the high cost, construction likely will be phased and could begin in 2016.

More information
Troy Pierce, Project Manager
Clark County Public Works
(360) 397-6118 ext. 4403
Troy.Pierce@clark.wa.gov 

Jean Singer, Project Manager
Clark County Public Works
(360) 397-6118 ext. 4823
Jean.Singer@clark.wa.gov

 
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