I-5 - NB Seneca to SR 520 - Mobility Improvements - Lane configuration animations

A map showing the current configuration of northbound I-5 in downtown Seattle.

There are currently two through lanes on northbound I-5 just after the Seneca Street off-ramp.
 

A map showing the future configuration of northbound I-5 in downtown Seattle.

This project will add an additional lane between the Seneca Street off-ramp and the Olive Way off-ramp by replacing existing barriers, rails and curbs with a thinner barrier, reconstructing asphalt shoulders with concrete and restriping the roadway.