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SR 509, I-5 to 24th Avenue S. – New Expressway Project – Key Feature: South 216th Street Bridge

South 216th Street Bridge

The following section describes one of the key features of the project. The designs presented are conceptual. The design-builder will finalize the schedules and designs, which may vary from the conceptual designs.

The existing South 216th Street Bridge is a two-lane roadway with narrow sidewalks that are not up to current standards. WSDOT is building a new, wider bridge to improve access and safety for all people, whether they drive, walk, bike or roll.

A model of the future S 216th roadway
The new bridge will have one lane in each direction, a center turn lane, five-foot-wide bike lanes and six-foot-wide sidewalks. The improvements will make it easier and safer for all people to get across I-5 in this location.

Construction impacts

During construction, the contractor will restrict lane access and we anticipate periods of time where only one direction of travel will be allowed. Original plans called for up to 12 months of one-way traffic, however Atkinson has committed to reducing one-way access to six months. People who walk, bike, or roll over the bridge will have continuous access throughout construction.

Please share any questions or comments on this part of the project on the comments and survey page.