Caltrans District 4
@CaltransD4

Caltrans District 4 - Working to bring you safe, efficient, accessible, and environmentally responsible highways and bridges in the Bay Area.

 Oakland, CA
linktr.ee/CaltransDistrict4?…
Joined June 2011
8,104 Photos and videos
Caltrans District 4 retweeted
Caltrans District 10@CaltransDist10
1h
#PlanAhead #Stockton #DiscoveryBay Additional 36-hour full closure of SR-4 from Roberts Road to SJ/CC County line scheduled to begin at 10pm, Fri., Oct. 23 until 10am, Sun., Oct. 25, 2026. See detour route below.
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👋Reminder: 🌇The U.S. 101 Bayshore Freeway (Hospital Curve) work is halfway completed! Next is repaving SB lanes on Oct. 16-19 and Nov. 6-9 weekends. Plan ahead. ✨Also, we have smoothness🛣️ grinding yet to do on all NB lanes. Stay tuned! @SFMTA_Muni @sfcta @SFBARTalert
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🚧SR-4 closures tonight, Sept. 29 ⛔Both directions: Balfour Rd →Marsh Creek Rd → Byron Hwy (West), 7 PM–8 AM, for striping. Additional ramp closures at Hillcrest Ave & Balfour Rd and EB lane work near Byron Hwy. Thank you for your patience. Plan ahead & slow down for crews.
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👋Weekend SB & NB I-280 Freeway Lane Reductions Friday Oct. 2, 10pm to Monday Oct. 5, 5am Motorists🛻 should expect delays as lanes will be reduced to one, each direction.
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🚧 Caldecott Tunnel – EB SR-24 Bore #2 CLOSED overnight for UPS/breaker replacement & routine maintenance. 📅 Oct. 1
⏰ 10 PM–4:30 AM
✅ All other bores remain OPEN. Sign up for Caldecott Tunnel advisories:
Scan the QR CODE #CaltransD4 #SR24
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🚨This Weekend: Central Freeway SB 101 Connector from 10th St. on ramp to the SB U.S. 101, for joint repairs. 👉Closed👈 Friday, October 2, 11 p.m. to Monday, October 5, 6 a.m.
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🚨 TRAFFIC ALERT: San Mateo County — One-way traffic control is in effect on SR-84 between Sears Ranch Road and La Honda Road for emergency striping. One-way traffic is in effect until 6 p.m. today. Drivers should expect minor delays.
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Estimated time of opening at this time is 2:30 a.m. on 9/29/26.
Caltrans District 4
@CaltransD4
19h
🚨TRAFFIC ALERT IN SONOMA COUNTY! SR-116 is currently BLOCKED in both directions just east of Sparkes Road due to a traffic incident. ⚠️ Motorists are advised to avoid the area, expect delays and use alternate routes. ⏱️ There is currently no estimated time of reopening.
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🚨TRAFFIC ALERT IN SONOMA COUNTY! SR-116 is currently BLOCKED in both directions just east of Sparkes Road due to a traffic incident. ⚠️ Motorists are advised to avoid the area, expect delays and use alternate routes. ⏱️ There is currently no estimated time of reopening.
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Caltrans District 4 retweeted
511 SF Bay
@511SFBay
21h
Roadwork on Westbound CA-4 Between Balfour Rd and Sand Creek Rd in Antioch. All Lanes Closed. Caltrans ETO is 10:00 PM. goo.gl/TU4ZDK
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Caltrans District 4 retweeted
511 SF Bay
@511SFBay
21h
ONGOING: Service Remains Stopped Between Pittsburg/Bay Point and Antioch, Due to Police Activity. Bus Bridge in Effect Between Pittsburg/Bay Point and Antioch Stations. goo.gl/TU4ZDK
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Heads up, drivers! Fiber optic work is scheduled overnight at the following locations: 🛣️ MAINLINE • EB I-80 #1 & #2: El Portal Drive → Appian Way — 10 PM • WB I-80 #1 & #2: El Portal Drive → Appian Way — 9 PM • EB I-980 #3 & #4: 19th Street → 580 Connector — 11 PM
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🚦 SURFACE STREETS • Hilltop Drive • Barrett Ave ⚠️ Expect nighttime work activity and possible lane/ramp impacts. Slow down, stay alert, and allow extra travel time. #FiberOpticWork #RoadWork #TrafficAlert #I80 #I980 #Richmond #BayArea #MondayNight
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🔀 RAMPS • Richmond Pkwy → EB I-80 Loop On-Ramp — 10 PM • Hilltop → WB I-80 Slip On-Ramp — 9 PM • Barrett Ave → WB I-80 — 9 PM • Castro St & 18th → EB I-980 — 11 PM
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Now and then! Caltrans staff return to their former Caltrans Office frm 1950s-90s for Time Capsule Reveal. Thanks to @InternationalSF for sharing their historic find at their school. @CaltransHQ
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@CaltransD4 & @InternationalSF school publicly unveiled surprise 1950s Caltrans Time Capsule found at school during renovation! Included newspapers and docs from July 1950. School building on Oak St. was once Caltrans Bay Area HQ.
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All lanes are now open.
Caltrans District 4
@CaltransD4
Sep 28
An overturned vehicle is blocking the two right lanes of westbound I-80 just east of San Pablo Dam Road. 🚗 Traffic is currently backed up to east of El Portal Drive. ⏱️No ETO
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The SR-84 Cache Slough “Real McCoy” Ferry is currently OUT OF SERVICE until approximately 7 PM due to a mechanical issue.⛴️ Travelers who normally use the ferry should plan ahead and use an alternate route until service resumes. Thank you for your patinence #RealMcCoyFerry
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An overturned vehicle is blocking the two right lanes of westbound I-80 just east of San Pablo Dam Road. 🚗 Traffic is currently backed up to east of El Portal Drive. ⏱️No ETO
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Motorists should expect significant delays, consider alternate routes and use caution when approaching the area. Check QuickMap.dot.ca.gov for current conditions.
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