UPDATE 1 P.M.:
Some of the mid-day lane closures around Mercer Street this week have been postponed or cancelled, making the road grid better-off than what the Seattle Department of Transportation initially announced. According to a mid-day SDOT update:
- There’s no lane closure of northbound Aurora Avenue North, because crews were able to finish their work Monday without blocking traffic.
- The Taylor Avenue North closure, near Mercer Street, has been delayed until Aug. 18-19 and converted to a night-time closure. Steel plates will be fastened to allow daytime use.
- Closures of the Dexter Avenue North bicycle lanes and left-turn lanes, between Roy and Republican Streets, as well as traffic police in the Dexter-Mercer intersection, will be postponed until the week of Aug. 18.
Other closures affecting pedestrians (below) remain in effect, as well as reductions of Mercer Street itself to one lane each direction, from 9 a.m. to 2 p.m. this week, through Friday.
Traffic in South Lake Union will be even trickier than normal as late-summer construction intensifies. Here are the highlights this week:
- Mercer Street will be narrowed to one lane each direction under Highway 99, for utility and concrete work, from 9 a.m. to 2 p.m. Monday through Friday. The corridor already is congested well beyond 9 a.m., so crimping the roadway mid-day will make driving slower.
- The Dexter Avenue North bicycle lanes will be closed from Roy to Republican streets from 9 a.m. to 3 p.m., Monday to Friday, and bicycles will have to merge with other traffic to get across Mercer Street.
- Uniformed police officers will be posted mid-days at the crossing of Dexter and Mercer, where they could wind up writing several $124 tickets for “blocking the box,” because cars often fail to clear the intersection.
- Northbound Aurora Avenue North will be reduced to just one lane Monday only, from 10 a.m. to 3 p.m., to complete concrete bridge pours, above Mercer Street. Drivers emerging from the Battery Street Tunnel should slow down and be prepared for suddenly stopped vehicles ahead.
- Turn lanes will be unavailable on parts of Dexter, because it will be narrowed to one lane each direction, from 9 a.m. to 3 p.m., Monday through Friday.
- Taylor Avenue North will be blocked near Mercer Street for water-main installation, at times to be announced.
- Pedestrians will be detoured starting Wednesday as parts of Fifth Avenue North are closed, including the busy southeast corner of Fifth and Mercer, next to the Gates Foundation. A new crosswalk will be installed at the crossing of Mercer and Taylor Avenue North, so people walking west will cross Mercer there, and continue west on the Queen Anne side of Mercer.
Further updates are posted by the Seattle Department of Transportation at the Mercer Corridor Project page, here.