CHOKEPOINTS

Why does Coast Guard open bridge when West Seattle traffic is snarled?

Nov 12, 2014, 1:05 PM | Updated: 3:19 pm

Traffic backed up for miles Wednesday on the West Seattle Bridge and into West Seattle after an ear...

Traffic backed up for miles Wednesday on the West Seattle Bridge and into West Seattle after an early morning crash and opening of the Spokane Street Bridge down below at the same time. (Ryan Reese via Twitter)

(Ryan Reese via Twitter)

As angry drivers stew about another nightmare drive from West Seattle, the city admits it didn’t know it could ask the Coast Guard to delay a bridge opening that blocked the only alternate route.

For the second time this month, the Coast Guard raised the Lower Spokane Street Bridge Wednesday morning while drivers were trying to maneuver around a crash that snarled the West Seattle Bridge.

Coast Guard Chief Petty Officer Sara Mooers says the Seattle Department of Transportation could have asked for a delay in the bridge opening Wednesday or last week, but never did.

When I asked the city why it didn’t ask, Rick Sheridan, Seattle Department of Transportation spokesperson, told me the city wasn’t aware that it could make such a request. The city only thought it could ask for a postponement if there was a problem with the bridge itself.

While the 520 bridge remains closed to boat traffic during commute times, the Coast Guard explained that the Lower Spokane Street Bridge operates under different rules.

The Duwamish handles a huge amount of commercial maritime traffic that is dependent on the tides. When large boats need to move, they need to move, regardless of bad traffic on the West Seattle Bridge.

Steven Fischer, the Coast Guard’s bridge administrator for the Seattle District, said it’s difficult to postpone an opening once a large vessel starts moving.

“This isn’t a car or a commercial truck,” he said. “You don’t stop on the bridge, put your emergency brake on, take a nap, and wait for somebody to honk their horn for you to go. It’s a very dangerous and dynamic thing to hold up a tug and barge in a narrow waterway like that.”

The Coast Guard said the city of Seattle knew there could be conflicts when it chose to put a low bridge on the Duwamish River, which the Coast Guard considers an obstruction.

“The Coast Guard, at the time, warned the city ‘here’s the impact and here’s what you’re going to have to do if you build a low bridge,’ and they chose to (build it anyway). So we’re kind of hamstrung by choices made previously,” said John Moriarty, Coast Guard deputy for waterways management.

In 2008, the city of Seattle asked if the Coast Guard would consider changing its rules to prevent rush hour openings. After a long public comment process and study, it was denied because the commercial importance of traffic on the Duwamish River outweighed the other concerns.

Chokepoints

167 Expressway Toll Fees Dec 14 Fife WSDOT...

Regan Gallo-Fenz

WSDOT to kick off SR 167 Expressway toll fees in Fife Dec. 14

Drivers who rely on the State Route 167 Expressway in Fife for their work commute have just over a month before the $1 toll fees begin on Dec. 14 at 5 a.m.

10 hours ago

seattle i-5 burning semi truck...

Jason Sutich

All lanes of NB I-5 reopen in Seattle after burning semi-truck causes morning delays

All lanes of northbound I-5 north of Boeing Field reopened Wednesday after a burning semi-truck blocked the right lane, causing delays for morning commuters.

14 hours ago

ferry terminal repairs orcas island...

MyNorthwest Staff

Orcas Island ferry terminal repairs could take 2 weeks as large vehicles remain restricted

Repairs to the Orcas Island ferry terminal’s transfer span could take up to two weeks after engineers found cracks in two supporting steel beams.

1 day ago

Sound Transit light rail car stuck...

Frank Lenzi

Car gets stuck near Rainier Beach station in Seattle’s second light rail track incident this year

For the second time this year, a car got stuck on Seattle light rail tracks.

1 day ago

Box truck rollover blocks four southbound I-5 lanes in DuPont...

Jason Sutich

SB I-5 reopens near DuPont after box truck rollover blocks 4 lanes

A rolled-over box truck is blocking the four left lanes of southbound I-5 in DuPont early Tuesday morning.

2 days ago

sound transit crosslake connection...

Julie Berg, KIRO 7

Sound Transit Crosslake Connection will be closed this weekend

Buses will replace Sound Transit Two Line trains between South Bellevue and International District/Chinatown on Saturday, Nov. 14 and Sunday, Nov. 15.

2 days ago

Why does Coast Guard open bridge when West Seattle traffic is snarled?