In one week, beginning Wednesday, March 11, crews building the future north portal of the SR 99 tunnel will close a single lane in both directions of SR 99/Aurora Avenue North between Valley Street and the Aurora Bridge. Two lanes will be open in each direction while crews install foundations for four large sign structures in the median and curb areas.
Closure details and schedule
Work is planned in two phases. View a map of the work locations.
Phase 1 (approximately 8 weeks): one lane closed in both directions for median work
One lane in the northbound and southbound directions will be closed around-the-clock while crews install four sign foundations in the median
Phase 2 (approximately 4 weeks): one lane closed in southbound direction for curb work
Durations shown for each phase are approximate and may change due to weather or other factors. We will keep the public informed as we prepare for Phase 2 work.
Preliminary work scheduled for Monday night, March 9
Bus rider information
Because northbound and southbound buses will travel, and stop, in the outside lanes with other vehicle traffic, trips into and out of Downtown Seattle may take longer than normal. During both phases the southbound bus-only lane restriction will be lifted.
Night work and weekend lane closures
In an effort to balance the needs of drivers and residents, an additional lane may close in both directions at night and during some weekend days. Some of this work is unavoidably noisy and may be disruptive. Residents with concerns related to nighttime noise may call 206-305-6967.
The long-term lane closures are expected to cause additional backups on SR 99 for vehicles and buses, particularly during peak commute times. WSDOT is encouraging drivers and bus riders to:
Contact us at firstname.lastname@example.org or 1-888-AWV-LINE (298-5463) or visit us at www.AlaskanWayViaduct.org.