Argonne Road - Spokane River to Wellesley Ave

County Road Project: CRP 3203
Project Design Engineer: Tim Schwab, P.E.
Project Award:   Inland Asphalt Company
Resolution No 2016-0489

Project Timeline:  Project scheduled to start Aug 8, 2016
Estimated Completion:  October 12, 2016
Project Fact Sheet view/print

Travel Impacts



Argonne Road Closure - Alternate Route Map  view/print
Upriver Drive and Centennial Trail Weekend Closures
view/print

August 4, 2016 News Release -- Massive Argonne Road Project Begins Monday, August 8, 2016.  A stretch of the busiest arterial in Spokane County is about to begin a major overhaul that will take months to complete!

A $1.2 Million project on Argonne Road from Maringo (just north of the Spokane River) to Wellesley will begin on Monday, August 8 and continue until mid-October. The project will replace aging asphalt, upgrade stormwater facilities and replace failing drywells, update curb ramps to bring them into ADA compliance, and improve traffic signalization at Upriver Drive. For all its improvements, the project will also make this stretch of Argonne extremely difficult to navigate and motorists should expect delays (see attached Fact Sheet). For instance, traffic will be reduced to one-lane in each direction and there is no detour in place for Argonne Road.Motorists are encouraged to find alternate routes!

All efforts will be made to ensure that property owners have access to their homes. Spokane County inspection staff and the contractor, Inland Asphalt Company, will make every effort to notify property owners when access will be limited.

Working hours begin at 7:00 a.m. to 5:00 p.m. Some days will be longer, but the work will never continue after dark (unless there is an unforeseen emergency with utilities).
Read the full news release.

Project Description
This project will grind full depth existing pavement, and place 5" HMA on Argonne Road from Spokane River Bridge to recent improvements just south of Wellesley Ave. There will be no changes in lane configuration.  Curb Ramps will be updated.  Stormwater Utilities will upgrade existing stormwater facilities between Upriver Dr. and Wellesley Ave and replace failing drywells. There will be improvements to the traffic signal at Upriver Dr.

Construction Timeline: Construction begins August 8th and is anticipated to be completed on October 12th.

What is the scope of work? This project will grind full depth existing pavement, and place 5" HMA on Argonne Road from Spokane River Bridge to recent improvements just south of Wellesley Ave. There will be no changes in lane configuration. Curb Ramps will be updated. Stormwater Utilities will upgrade existing stormwater facilities between Upriver Dr. and Wellesley Ave and replace failing drywells. There will be improvements to the traffic signal at Upriver Dr.

Why is it necessary? The asphalt pavement is showing wear and failing in areas. While the roadway is under construction, Spokane County will take the time to address some stormwater issues, update curb ramps to bring them to current ADA requirements, and improve the traffic signalization at Upriver Drive.

Project Cost  60-percent of the funds needed to pay for this project will come from Transportation Improvement Board (TIB, State funds). The remaining 40-percent is paid out of the County’s Stormwater and Road funds.

Traffic Delays and Detours
Argonne Road will be reduced to one-lane in each direction which will definitely cause delays. There is no detour in place for Argonne Road; thru traffic is encouraged to find alternate routes. Upriver Drive will be closed on many weekends and detour routes will be in place. Watch for signage as a 5-day warning of closure is required. The Maringo intersection will be restricted with no through east/west traffic and right-in/right-out movements only on Argonne. The Centennial Trail will be affected by this project. The trail will be closed at the Argonne/Upriver intersection during most weekends. It will be open when the intersection is open to traffic. Users of the trail are asked to use extreme caution navigating through the construction zone. Work is continuing with the contractor to provide the most up to date traffic control information. Only Local access (people living within the project limits) will be allowed. The Spokane County Library will remain open.