Caltrans District 4 @CaltransD4 Twitter profile

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Caltrans District 4

@CaltransD4

14 hours

The Rio Vista Bridge in Sacramento and Solano counties is now open and fully functional to both vehicles and boats. @ChpSolano @511SFBay

Caltrans District 4

@CaltransD4

18 hours

🚨 As of 10am May 21, the SR-12 Rio Vista Bridge is stuck in the up position after being raised for a ship at 9:30am. Crews are working on it, but no reopening estimate. Expect major delays; use alternate routes like I-80 or I-5. Hour-long detours likely. @oakland @511SFBay

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Caltrans District 4

@CaltransD4

18 hours

🚨 As of 10am May 21, the SR-12 Rio Vista Bridge is stuck in the up position after being raised for a ship at 9:30am. Crews are working on it, but no reopening estimate. Expect major delays; use alternate routes like I-80 or I-5. Hour-long detours likely. @oakland @511SFBay

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Caltrans District 4

@CaltransD4

20 hours

Reminder: Ongoing construction at Dana Bowers Rest Area on NB US-101 in Sausalito. Restrooms closed, portable toilets available, some parking spots affected. Work continues through Memorial Day, expected to last 2 months. Rest area remains open with stunning Golden Gate views. 🙏🏼

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Caltrans District 4

@CaltransD4

2 days

⚠️ On Sun, June 2, expect lane closures on I-80 Bay Bridge from 5am-12:01pm for safety tests & a fire drill. 2 lanes open. Caltrans, CHP & fire depts will test new fire systems in Yerba Buena Tunnel. Thanks for your patience. @CHPDublin @CHPHayward @511SFBay

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Caltrans District 4

@CaltransD4

2 days

🚧 EB SR-37 between Sonoma & Solano reopened at 4:30am! Starting tonight at 9pm, alternating overnight closures for striping work continue until 4am daily through Fri, May 24. Thanks for your patience! Details: 🚧 #SR37Pave @511SFBay @KCBSAMFMTraffic

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Caltrans District 4

@CaltransD4

2 days

🎉 SB I-680 between Alcosta Blvd in San Ramon & I-580/I-680 in Pleasanton has reopened 2 hrs ahead of schedule at 2am, May 20. Final closure: May 31, 9pm - June 3, 4am. Thanks for your patience! More info: or call (510) 286-0319. @CityofSanRamon @511SFBay

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Caltrans District 4

@CaltransD4

2 days

Images from the Eastbound SR-37 closure Sunday in the Bay Area. Work is on schedule. Visit for updates or call (510) 286-0319. #sr37pave @GoSCTA @NVTA_NapaValley @MTCBATA @STA_Solano @TAM_MovingMarin @smarttrain

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Caltrans District 4

@CaltransD4

3 days

🚧 Today’s SR-37 work is on schedule, set to wrap up by 5am tomorrow 5/20. Starting Mon night, expect alternating WB and EB overnight closures, 9pm-4am for striping through Fri, May 24. Thanks for your patience! #SR37Pave @511SFBay @KCBSAMFMTraffic

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Caltrans District 4

@CaltransD4

3 days

Our teams are pushing forward on SR-37, and we're excited to report that the improvements are almost done and on schedule. 🛣️ The current closure remains in effect until tomorrow, May 20 at 4am. #SR37Pave @CountyofSonoma @ChpSolano

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Caltrans District 4

@CaltransD4

3 days

🚧 Our hardworking crew is making great progress on the paving of southbound I-680 between Alcosta Boulevard in San Ramon and the I-580/I-680 connector in Pleasanton. The project is almost done, and it will greatly enhance the roadway conditions. 🎉🧡

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Caltrans District 4 Retweeted

San Francisco Department of Emergency Management

@SF_emergency

3 days

ALERTSF: The Fire Activity on Eastbound Bay Bridge has been RESOLVED. Expect continued delays and use alternate routes. Check for realtime traffic and transit updates.

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Caltrans District 4

@CaltransD4

4 days

👷‍♂️ Work is underway on SB I-680 between Alcosta Blvd in San Ramon & I-580/I-680 in Pleasanton. Partial closures until 4am Mon, May 20. Expect delays & use alt routes like I-80 to SB I-880. Also, May 31-Jun 3. Thanks for your patience!

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Caltrans District 4

@CaltransD4

4 days

🚧 Our teams are hard at work making essential improvements to enhance road safety and quality. Here's a snapshot of this morning’s progress! 🛣️ Thank you for your patience as these upgrades continue. Remember, planning ahead helps avoid delays! #SR37Pave

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Caltrans District 4

@CaltransD4

4 days

Attention! ⚠️ SB I-680 between Alcosta Blvd in @CityofSanRamon and the 580/680 interchange in @pleasantonca is partially closed. PLEASE AVOID THE AREA if you can – as you can see, the 2 open lanes are congested. @511SFBay @KCBSAMFMTraffic

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Caltrans District 4 Retweeted

KCBS Radio - The Traffic Leader

@KCBSAMFMTraffic

4 days

#Oakland -- Westbound #Interstate580 has turned stop-and-go approaching Coolidge. A motorcycle crash is blocking the two right lanes. (Photo: @CaltransD4 ) #KCBSTraffic .

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Caltrans District 4

@CaltransD4

4 days

#TrafficAlert : Expect delays up to 1.5 hours on SR-37 today from noon to 6pm due to roadwork. For a smoother journey, consider using the Richmond-San Rafael Bridge as an alternative route. 🌉 Plan ahead and stay updated at . @511SFBay @KCBSAMFMTraffic

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Caltrans District 4 Retweeted

KCBS Radio - The Traffic Leader

@KCBSAMFMTraffic

4 days

#SanRamon -- Southbound #Interstate680 delays from Bollinger Canyon past Alcosta. Caltrans has the THREE left lanes coned-off for roadwork until 4am Monday. (Photo: @CaltransD4 ) #KCBSTraffic .

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Caltrans District 4

@CaltransD4

4 days

Motorists are encouraged to use the Richmond-San Rafael Bridge as an alternate route. For live traffic conditions go to Caltrans Quickmap ➡️

KCBS Radio - The Traffic Leader

@KCBSAMFMTraffic

4 days

#SonomaCounty to #Vallejo -- The detour will get very crowded later today and tomorrow: Northbound #Highway121 to eastbound #Highway12 to southsbound #Highway29 . Westbound 37 is OPEN and not affected. #KCBSTraffic .

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