Caltrans District 4 (@CaltransD4) / X

Caltrans District 4

24.4K posts

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/CaltransDistri…

Joined June 2011

Pinned
Caltrans District 4
@CaltransD4
Jan 14
🚗 Drivers — Before you hit the road, check our free #QuickMap app or visit QuickMap.dot.ca.gov for the latest updates on road closures, chain controls, and more. Stay informed, travel safe! 🛣️ #knowbeforeyougo #quickmap #drivesafely @CaltransHQ @CHP_HQ #caltransbayarea
7.3K
Caltrans District 4
@CaltransD4
8h
🚧 #TrafficAlert Contra Costa Co. (6/9–6/12) Nightly 9PM–6AM: • Alt lane closures EB/WB I-80 (Appian Way → Pinole Valley Rd) • EB Appian Way on-ramp CLOSED Cummings Skyway: work ongoing (no closures) Expect delays. Plan ahead & slow for crews. #BeWorkZoneAlert
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Caltrans District 4
@CaltransD4
11h
Heads up, Half Moon Bay! 🌊Paving work coming to Frontage Road: · Monday, June 15 and Tuesday, June 16 · 8 a.m. to 5 p.m. · Frontage Road between Wave Ave and Farmer John's Pumpkin Farm *No driveway access 6/15* Full Advisory:
myemail.constantcontact.com
Project Update: Paving work on Frontage Rd in HMB June 15-16
Email from Caltrans D4 I San Mateo County Plan ahead and check Quickmap.dot.ca.gov Traffic Advisory — For Immediate Release Date: June 10, 2026 District: District 4 Contact: Jeneane Crawford Phone: (
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Caltrans District 4
@CaltransD4
15h
🚗🎉 The new Manuel T. Freitas Roundabout in San Rafael is now open to traffic! This marks the completion of a project designed to improve safety, mobility, and accessibility at the busy intersection of Freitas Parkway, Civic Center Drive, and Old Redwood Highway. #CaltransD4
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Caltrans District 4
@CaltransD4
Jun 10
Replying to @CaltransD4
Expect delays, follow detours & slow for crews. #BeWorkZoneAlert Check quickmap.dot.ca.gov for real‑time updates: #norightstobackgroundmusic #caltransd4 @ContraCostaFire @CCCounty @NewsContraCosta
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Caltrans District 4
@CaltransD4
Jun 10
🚧#TrafficAlert Contra Costa County (6/9–6/10) Overnight drainage work on SR-4 & Route 160:•EB SR-4: Lane closure Hillcrest Ave → SR-160 9 PM–6 AM •WB SR-4: FULL off-ramp closure at Hillcrest Ave 8 PM–6 AM •WB SR-160: Lane #4 closure near Hillcrest Ave (7 PM–4 AM)
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Caltrans District 4 reposted
Caltrans District 4
@CaltransD4
Jun 5
Caltrans maintenance crews will conduct overnight closures of Bore #3 on westbound SR-24 to perform routine tunnel maintenance and relocate a temporary transformer trailer. 📅 Tuesday, June 9 & Wednesday, June 10 ⏰ 10:00 PM – 4:30 AM nightly QuickMap.dot.ca.gov
1.3K
Caltrans District 4
@CaltransD4
Jun 9
🚧 Burlingame ECR update 🚧 Full closures of El Camino Real scheduled: 📍 June 12: Carmelita Ave. – Oak Grove Ave. 📍 June 15–17: Carmelita Ave. – Howard Ave. 🕘 9 a.m.–6 p.m. Plan ahead & expect detours. More info: conta.cc/49BjDIt #ECRRoadwayRenewal
myemail.constantcontact.com
ECR Project Update: Road Closures from Carmelita to Howard & Oak Grove June 12, 15-17
Email from Caltrans D4 I San Mateo County Please follow posted detour signs Date: June 9, 2026 District: District 4 Contact: Jeneane Crawford Phone: (510) 390-3253 Full road closure on SR-82 in Burl
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Caltrans District 4
@CaltransD4
Jun 9
Heads up SamTrans riders! 🚌🚌 Temporary bus stops along San Mateo Dr. and California Dr for Caltrans ECR project. New service changes on Sunday, June 14: · samtrans.com/route-ecr · samtrans.com/route-397
Route ECR | SamTrans
From samtrans.com
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Caltrans District 4
@CaltransD4
Jun 9
⚽🌎 As FIFA World Cup 26™ SF Bay Area approaches, Caltrans crews are building on the year-round work that keeps our highways safe, clean, and welcoming. These before-and-after photos showcase just some of the improvements happening across the Bay Area every day. #BayAreaMoves
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Caltrans District 4
@CaltransD4
Jun 9
Breakdowns are inevitable but not leaving behind your breakdown waste (moto oil bottles, tires and other packaging) that erodes and leaks into nearby water. Caltrans crews recently cleaned this mess left near I-5’s Alvarado Boulevard exit in Fremont. 💙🚮 #CleanCA @CAgovernor
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Caltrans District 4 reposted
County of San Mateo
@sanmateoco
May 31
Consumer Alert: Grapevine plants sold at Bay Area Costco stores after April 21 may be infested with invasive glassy-winged sharpshooter. Do not return or move the plant. Bag it and contact your local County Agricultural Commissioner’s office: bit.ly/4dK7QIX
1.4K
Caltrans District 4
@CaltransD4
Jun 9
Replying to @CaltransD4
Expect delays. Plan alternate routes. Check real‑time updates on Caltrans QuickMap: quickmap.dot.ca.gov #norightstobackgroundmusic #caltransd4
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