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

Current lane configuration

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.

Future lane configuration

A map showing the future lane configuration on northbound I-5 near Seneca. Street 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.