SR 520 - I-5 Express Lanes Connection Project - Project map

larger map of SR 520 / I-5 Express Lanes Connection

This project will create a new transit/HOV connection between SR 520 and Seattle's
South Lake Union neighborhood.

map of SR 520 and I-5 express lanes connection

Key project elements noted on the map above:

  1. A new, reversible transit/HOV ramp between SR 520 and the I-5 express lanes
  2. Restriped I-5 express lanes that retain the four existing lanes while adding a reversible transit/HOV lane between the I-5 / SR 520 interchange and Mercer Street
  3. A modified, reversible ramp between the I-5 express lanes and Mercer Street