MileCheck / Drawbridges / Seattle Drawbridges / First Avenue South Bridge
First Avenue South Bridge · SR 99 / 1st Ave S · Duwamish mile 2.5

Is the First Avenue South Bridge up right now?

Live from Seattle DOT, checked every two minutes, with how long it has been up. Opens on signal for boats.

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Seattle Drawbridges

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First Avenue South Bridge · live
CHECKING

Reading Seattle's bridge feed.

Checked Source Seattle DOTRefreshes every 2 min

When does the First Avenue South Bridge open?

  • Opens on signal for boats.
  • Weekdays 6 to 9 a.m. and 3 to 6 p.m. it does not have to open, except for a vessel of 5,000 gross tons or more, or a tug moving one.
  • Federal holidays count as weekends, except Columbus Day.

The federal rule, word for word:

The draws of each bridge across the Duwamish Waterway shall open on signal, except as follows: (1) From Monday through Friday, except all Federal holidays but Columbus Day, the draws of the First Avenue South Bridges, mile 2.5, need not be opened for the passage of vessels from 6 a.m. to 9 a.m. and from 3 p.m. to 6 p.m., except: The draws shall open at any time for a vessel of 5000 gross tons and over, a vessel towing a vessel of 5000 gross tons and over, and a vessel proceeding to pick up for towing a vessel of 5000 gross tons and over.
33 CFR 117.1041(a)(1)

Seattle Drawbridges

Free: every Seattle drawbridge, its opening rule, and live up or down status for the five the city publishes. $6.99, once, unlocks the rest: a push when a bridge you chose goes up and another if it stays up 15, 20 or 30 minutes, the lift history MileCheck keeps for each bridge, and four more colour schemes. No subscription, no account, no ads. Your location stays on your phone.

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Questions

Is the First Avenue South Bridge up right now?

This page shows Seattle DOT's live state for the First Avenue South Bridge, refreshed every two minutes, with how long it has been up. If the city's feed has gone quiet the page says "no live reading" rather than guessing.

When does the First Avenue South Bridge open for boats?

Opens on signal for boats. Weekdays 6 to 9 a.m. and 3 to 6 p.m. it does not have to open, except for a vessel of 5,000 gross tons or more, or a tug moving one. Federal holidays count as weekends, except Columbus Day.

How long does the First Avenue South Bridge stay up?

Most openings are over inside 15 minutes. A single sailboat is a few minutes; a tug with a tow, or several boats in a row, takes longer. The Seattle Drawbridges app times each lift.

Can I get a notification when the First Avenue South Bridge goes up?

Yes. The Seattle Drawbridges app sends a push the minute the First Avenue South Bridge goes up, and another if it stays up 15, 20 or 30 minutes.

Other Seattle bridges

Ballard Bridge

15th Ave NW over the Ship Canal. Live status.

Fremont Bridge

Fremont Ave N over the Ship Canal. Live status.

University Bridge

Eastlake Ave E over the Ship Canal. Schedule only.

Montlake Bridge

Montlake Blvd over the Ship Canal. Live status.

South Park Bridge

14th Ave S over the Duwamish. Live status.

Southwest Spokane Street Bridge

SW Spokane St over the Duwamish. Schedule only.

Live status from Seattle DOT via the MileCheck API. Opening rules from 33 CFR 117, the federal drawbridge regulations. Not affiliated with the City of Seattle, WSDOT or the Coast Guard.