Signal mast arm finally sets sail!
Remember early August, when a mast arm set sail for 6th and Seneca? On August 6, crews did install a new signal pole, but lifting up the mast arm had to wait.
To make room to lift and place the 35-feet-long steel mast arm, the team needs extra clearance. That’s why this time around, on Saturday, Metro trolley lines will be temporarily deactivated at the 6th and Seneca intersection.
Steel mast arm signal poles, like those at 2nd and University downtown, can double the life expectancy of signal equipment. They also decrease maintenance needed after wind storms (assuming actual sails are’t attached to these masts).
What you can expect:
Saturday, September 22 | 6 AM to 1 PM
- Installation of mast arm to new signal pole and removal of old signal pole at the NE corner of 6th Ave and Seneca St.
- Intersection is expected to reopen after 1 PM, with possible temporary lane restrictions as work wraps up.
- Uniformed police officers will be on site to help direct traffic.
Closures | During work hours
- 6th Ave between Seneca St and University St.
- Seneca St. right turn only lane.
- Seneca off-ramp reduced to one lane.
- Vehicles exiting off-ramp may only go down Seneca.
Thank you for your patience!
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There’s no way around it—getting around Seattle is going to be tricky during the SR 99 closure. Expect traffic delays and be prepared for full buses during peak travel times. Check out the travel options below that can help you get around in anticipation of the new SR 99 tunnel opening.
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