SDOT has released this information regarding the upcoming lane closure on the Spokane Street Viaduct:

The Seattle Department of Transportation’s contractor begins work to connect the new Fourth Avenue S off-ramp to the Spokane Street Viaduct the night of July 19, with crews closing both eastbound travel lanes for one night only to emplace temporary barriers.

The full closure of all eastbound Spokane Street Viaduct lanes (from east of the First Avenue S off-ramp to I-5) will last from 9:00 p.m. Monday until no later than 5:00 a.m. Tuesday, July 20. During the night traffic will be detoured to the lower roadway to access I-5, and motorists will still be able to connect to SR99 and First Avenue S. Starting at 5:00 a.m. on July 20 only the eastbound right-hand lane of the Spokane Street Viaduct will remain closed, for up to six weeks.

By 8:00 a.m. tomorrow, July 16, two eastbound lanes of lower Spokane Street will re-open, between East Marginal Way S and Fourth Avenue S, with one lane continuing to Sixth Avenue S. The re-opening will greatly improve access for eastbound vehicles, which have had to detour at East Marginal Way, as well as those exiting the Spokane Viaduct at First Avenue S.

For information about construction closures for this project and other projects, please visit Construction Closures in Downtown Seattle and SODO at: http://www.seattle.gov/transportation/sodo_latest.htm .