Facts
- Overview
- Pair of tunnels under Mt. Baker Ridge on I-90 in Seattle
- Location
- King County, Washington
- Status
- Open to traffic
- History
- Built 1940 and twinned in 1989
- Design
- Tunnel
- Dimensions
-
Total length: 1,476.1 ft.
- Inventory number
- BH 34308 (Bridgehunter.com ID)
- Inspection
- Average daily traffic (as of 2002)
- 48,088