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July 17, 2013 at 5:10 PM

11 weekend closures of I-5 ramps or lanes begin Friday

This weekend, the northbound and southbound ramps from Interstate 5 to Corson Avenue South will close, in the first of 11 weekend disruptions of I-5 alongside Beacon Hill or Capitol Hill.

The Corson job runs from noon Friday to 5 a.m. Monday, when motorists are advised to detour by using the nearby Albro-Swift exits.

Contractors will be replacing steel expansion joints that have worn out or been patched since the freeway opened in the 1960s. Three ramps will be resurfaced. Similar work was done south of downtown this winter and spring.

Expansion joints are gaps between spans of a road bridge, so the decks can expand or contract without cracking when the weather changes. The deck edges are reinforced to prevent erosion and enable smoother driving.

expansion joint

A broken expansion joint. Photo by WSDOT.

There will be a total five weekend ramp closures at Corson, all starting at noon Fridays. Another four at the northbound exit to the West Seattle Bridge and South Spokane Street will begin at 10 p.m. Fridays. Two partial closures are planned on the mainline of northbound I-5 just north of Mercer Street, in late August and early September, when up to three lanes would close by midnight on Fridays.  Other overnight lane closures are possible.

A project website is linked here.

Comments | Topics: expansion joints, Interstate 5, WSDOT


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