What to expect
Being a good neighbor during construction
WSDOT and Graham recognize that people living, working or traveling through a complex project are those most affected by the work. While some inconvenience from SR 520 construction is unavoidable, we strive to minimize effects on neighbors as much as possible.
Boat, canoe and kayak restrictions on Lake Washington during construction
During certain periods of construction, cranes and other equipment will limit water access under SR 520 bridges.
- One navigation channel by the floating bridge may be blocked periodically.
- At least one navigation channel will always be open to boaters.
- During these blockages, boaters should navigate through the open channel.
Construction on Lake Washington
The Montlake Project will require crews to work both in and over Lake Washington.
- Remove sections of the old bridge to make room for the temporary work trestles.
- Construct the temporary work trestles on both sides of the old bridge to support gantry cranes.
- Construct the eastbound bridge.
Graham will perform nighttime work under a City of Seattle-approved Major Public Project Construction Noise Variance. The variance sets limits for nighttime construction noise for the duration of construction.
Nighttime hours when variance is applicable:
Weekdays: 10 p.m. to 7 a.m.
Weekends and holidays: 10 p.m. to 9 a.m.
Some residents in the Montlake and Madison Park neighborhoods may notice vibrations when crews perform certain work during Montlake Project construction.