Construction
1.7 mi
Construction assistance on SB 101 at Holly St
Construction assistance is taking place on southbound 101 at Holly Street. Expect some delays as crews work in the area.
Belmont, CA Traffic and Road Conditions
Belmont Traffic Map
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FAQs
Q) How often is the map updated?
A) The traffic flow is updated at loadtime and upon movement outside the initial map view, or upon refresh of the page. Any incident markers are checked for updates approximately every 5-10 minutes, but you need to reload the page to load any new updates; the data provided may still be the same status/view as before. Information shown is as only reliable as how it is reported to us.
Q) The roads are backed up or closed, but the map does not show the reason why, what's up with that?A) Municipal traffic monitors or GPS trackers may not be available, could be offline, or reports and alerts are not syndicated to media outside of the area to use on the map. This is especially true for rural areas. You are encouraged to leave a road conditions report to help others.
Q) I see traffic alerts in the box below for the state, but they aren't related to the area I'm in? A) We attempt to display alerts as specific to the area as possible, however in some cases the data we receive will only allow us to provide it by county or even statewide.
Q) Are you an official source of traffic information? A) We are not an official source of traffic or real-time data. We have contracts and licenses to display certain up-to-date information that comes direct from some DOTs in various states, and the traffic flow on the maps is provided by TomTom or other map platforms. However, the data shown here should only be used for light informational and reference purposes and not to make critical decisions. Your safest option on the web is to use your official state-run traffic website, or to call the DOT traffic line for your state, local authorities, or the state's 511 number if available.
Belmont Traffic Alerts
Collision
2.4 mi
Vehicle into hillside on Sr92
A Chevrolet Trailblazer has crashed into a hillside on eastbound Sr92 near Hillsdale Blvd, with airbags deployed. A tow has been requested.
Hazard
2.7 mi
Deer reported on SR92 W near Redwood City
A deer has been reported on westbound SR92 near Alameda De Las Pulgas, creating a potential hazard for drivers. Please proceed with caution in this area.
Hazard
10.1 mi
Traffic hazard on SB 101 near Airport
There’s a reported hazard on southbound 101 near the North Access Road to the airport. Please stay alert while driving through.
Construction
19.7 mi
Construction Work on I580 W
Construction assistance is taking place on I580 West at Eden Canyon Road Offramp. Drivers should be cautious as units are on scene.
Hazard
21.2 mi
Tire change hazard on I580 W
A small car is stopped on the shoulder while two people are changing a tire on westbound I580 near Schaefer Ranch. This situation poses a safety hazard.
Fire
23.6 mi
Smoke reported on I880 S near Coleman Ave
Smoke has been seen from the freeway near Coleman Ave on southbound I880, possibly near the airport, but no fire has been located.
Construction
23.9 mi
Construction Work on I680 N
I680 North at Alcosta Blvd Offramp is experiencing construction assistance. Be prepared for potential slowdowns.
Collision
24.0 mi
Collision on SB 101 near Oakland Rd
Southbound 101 just south of Oakland Road has a reported collision. A bike was involved, and fire crews are on the scene. Please drive with caution in the area.
Hazard
25.7 mi
Traffic hazard on SB 101 near McKee Rd
A bike is reported on the right shoulder southbound on 101, just south of McKee. No pedestrians have been seen in the area.
Collision
30.6 mi
Collision on SB 17 Near Summit
All lanes are blocked on southbound SR17 near Summit due to a collision involving a Chevrolet Silverado that went off an embankment. A heavy-duty tow is requested for the vehicle, which is reportedly in two pieces.
Hazard
30.7 mi
Traffic hazard on SB 17 near Summit Rd
All lanes are blocked on southbound 17 just south of Summit Road due to a reported vehicle. The vehicle has left the scene, and authorities are on the way.
Construction
30.8 mi
Construction assistance on San Clemente Drive
Expect delays on San Clemente Drive as crews assist with construction. No lane closures reported.
Floriston Fire grows to more than 600 acres, westbound I-80 remains closed | California News | 2news.com
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Floriston Fire Burns 613 Acres Near I-80 in Nevada County, Prompting Evacuations and Highway Closures
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Night-flying helicopters help battle Floriston Fire; fire more than 600 acres; westbound I-80 still closed | California News | 2news.com
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Fast-Moving Wildfire Near Truckee Closes Span of I-80 | KQED
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UPDATE: Full Weekend Closures on Northbound U.S. 101 & Lane Reduction on Southbound (Hospital Curve) September 18-21
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Sacramento Highway 50 crash closes several westbound lanes near 16th Street - CBS Sacramento
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Westbound lanes of Interstate 80 shut down due to Floriston Fire | Covering California | actionnewsnow.com
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Monsoonal Weather Prompts Emergency Project On Highway 243 Near Banning: Caltrans | Banning, CA Patch
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Travel - Caltrans - CA.gov
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Traffic Alerts - Los Angeles
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California State Official Traffic Resources:
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
CA DOT | Caltrans QuickMap | CHP Traffic Full Site | CHP Traffic Mobile Site
sources: Caltrans, CHP, Twitter
Alerts Last Updated: Fri, Sep 18th 12:09:17 AM
Are You Here in Belmont?
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National Traffic Forecast
Flash Flooding and Record Highs Impacting Roads and Travel for 09-17 to 09-19
Updated Thu Sep 17th 2026, 5:07am PDT
Southwest & Great Basin Area
Drivers in the Southwest should be on high alert for sudden heavy rain and potential flash flooding especially along the I-40 and I-10 corridors. Keep an eye out for ponding water which can lead to unexpected road closures.Southern Rockies
Commuters traveling through the Southern Rockies, including highways like I-25, should prepare for showers and possible thunderstorms. The risk of flash flooding is present, so please drive carefully and be mindful of road closures.Northern Plains & Upper Midwest
As we head into Friday and Saturday, heavy rain is expected to develop along the I-94 and I-90 corridors. Be prepared for potential flash flooding, which could lead to traffic delays and detours.Central Plains & Midwest
The cooler air makes its way into the area, but watch out for cooler temperatures that could impact tire pressure. Routes like the I-70 and I-80 should see less severe weather impacts.Southern Plains & Mississippi Valley
Travelers in this region should prepare for intense heat, especially in areas along I-35, I-20, and I-55. Ensure your vehicle's air conditioning is working well and stay hydrated.Florida
Scattered thunderstorms are expected primarily on State Route 528 and US-1. While heavy rain is less likely, be aware of slippery roads and drive with caution.
This live traffic and road conditions report is relevant for ZIP codes 94002 and 94003, accurately covering areas of Belmont, CA.
Currently
 |
56°F |
30.1 inHg.
Barometer 88%
Humidity SW 5.4 mph Wind |
| Clear | ||
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National Outlook
More Flash Flooding Expected in the Southwest and Plains: 09-17 to 09-19
Thu Sep 17th 2026, 5:06am PDT
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