SR 99 - SR 509 Southbound Duwamish River Bridge - Bridge Repair - Alternative routes

A map showing alternatives to the SR 99 southbound Duwamish River Bridge

The SR 99 southbound Duwamish River Bridge will have multiple brief closures each day through mid-October 2020. There are a number of alternatives drivers may choose if they wish to avoid delays, including the South Park Bridge, the East Marginal Way South Bridge, the Tukwila International Boulevard Bridge and I-5.