Caltrans District 4

🚗 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

Full roadway closures continue from 9am - 6pm on the SR82 #ECRRoadwayRenewal project. ⚠️ Oak Grove Ave. to Carmelita Ave. • Monday, March 23 Forest View Ave./Oak Grove Ave. to Howard Ave. • March 24 - 27, March 30 - April 3, April 6 - 8 Full advisory: conta.cc/4uCYfey

SAN MATEO COUNTY ― Caltrans has scheduled overnight concrete placement work in San Mateo. Closure Details: 📍US 101 / SR-92 off-ramp 📅Thursday, March 26 🕐9 p.m. to 5 a.m. Full advisory: conta.cc/3PtB32h

UPDATE: Residual Delays on Southbound US-101 South of Tully Rd in San Jose. All Lanes Open.

Caltrans will begin a pavement rehabilitation project on NB and SB I-680 between Alcosta Boulevard & Diablo Valley Road starting March 23. ⚠️ Nightly lane closures: Monday through Friday Hours: 8:00 PM- 5:00 AM View the full advisory ⬇️

Traffic Collision With Injuries on Southbound US-101 South of Tully Rd in San Jose. Left and Center Lanes Blocked. goo.gl/TU4ZDK

#REMINDER EB I-580 near the Richmond San Rafael Bridge Lane #1 (left lane) will remain CLOSED on EB I-580 between Richmond San Rafael Bridge at the Toll Plaza in Richmond to Stenmark Drive . ⚠️Stenmark Drive onramp to EB I-580 is now OPEN. QuickMap.dot.ca.gov for updates

#TrafficAlert SR-4 (Contra Costa) Emergency lane closure today (3/19) from 8 AM–2:30 PM📍 Sycamore Ave to Franklin Canyon Rd • Lane 1 CLOSED (1 of 2) • Center median CLOSED Expect delays and merging traffic. Slow down and stay alert. Quickmaps.dot.ca.gov #BeWorkZoneAlert

March 16 to 22 is National Drug and Alcohol Facts Week. 76% of alcohol-involved crashes are from driving or biking under the influence. Traffic injuries and fatalities are preventable. If you have been drinking or using drugs, don’t drive!

Update EB I-580 near the Richmond San Rafael Bridge ⚠️Stenmark Drive onramp to EB I-580 is now OPEN. Lane #1 (left lane) will remain closed on EB I-580 between Richmond San Rafael Bridge at the Toll Plaza in Richmond to Stenmark Drive . Check QuickMap.dot.ca.gov for updates

This Women’s History Month, we’re proud to spotlight Allison Irvin, Branch Chief of Facilities Operations. Her leadership, mentorship, and dedication to workforce pathways reflect Caltrans’ commitment to a more sustainable and inclusive future.💙 #WomensHistoryMonth #Caltrans

Update on Emergency Roadwork on I-580 ⚠️ Lane #1 is currently closed on EBI-580 between Richmond San Rafael Bridge at the Toll Plaza in Richmond. Stenmark Drive onramp remains closed. Expect delays and check QuickMap for updates.

UPDATE: Residual Delays on Eastbound and Westbound CA-4 at Discovery Bay Blvd in Discovery Bay. All Lanes Open.

Plan ahead if you’re traveling on SR-4 near Discovery Bay @CHP_ContraCosta @CaltransHQ @CaltransDist3 @CaltransDist10 @KCBSRadio @cccpublicworks @CCCounty

@CHPMarin @cccpublicworks @GoldenGateBus @CCCounty @NewsContraCosta @RideACTAlerts @511SFBay

Emergency Roadwork on I-580 ⚠️ 2 of 3 lanes are closed on EBI-580 between Richmond San Rafael Bridge at the Toll Plaza in Richmond. Stenmark Drive onramp is additionally closed. Residents behind Stenmark Drive onramp should take WB I-580 to return to EB I-580.

ONGOING: Emergency Roadwork on Eastbound I-580 between Richmond San Rafael Bridge Toll Plaza and Stenmark Drive in Richmond. Left and Center Lanes Remain Closed. Caltrans ETO is 12:00 PM. goo.gl/TU4ZDK

Caltrans will continue full closures of Stone Valley Road on-ramp to SB I-680 in Alamo through August 2026. Closure details: 📅 Monday - Friday 🕛 10AM - 6PM View the full advisory for detour information and visit Caltrans QuickMap for real-time traffic information.

Feeling lucky this St. Patrick’s Day?🍀Don’t push your luck on the road. If your celebration includes alcohol, plan ahead: • Use a rideshare or taxi • Designate a sober driver Impaired driving puts lives at risk. Celebrate responsibly and help keep everyone safe.

We still have at least 3 more days of the heat wave at very similar levels that we saw today. Know the difference between Heat Exhaustion and Heat Stroke, it could help save a life. #CAwx

Traveling near SFO or heading northbound from the Peninsula this weekend? U.S. 101 will have fast lane closures. Two lanes will stay open in both directions. 📅 March 20–23, April 3–6 ⏰ 11 PM Fri to 6 AM Mon Expect delays and #PlanAhead