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WSDOT will begin grinding and paving near the SR 18 interchange in August. During this work, we will need to close the on- and off-ramps from SR 516 to east- and westbound SR 18. We will post detour routes to direct drivers around the closure. Below are the detour routes for each of the ramp closures.Eastbound SR 18 off-ramp closureEastbound SR 18 on-ramp closureWestbound SR 18 off-ramp closureWestbound SR 18 on-ramp closure