Brisbane
Southbound
CM011-SM101 S/B N/OF SIERRA PT RAMP OC, near Brisbane, Southbound, route US-101SFO ARPT 6 MIN
RTE 92 15 MIN
RTE 84 21 MIN
Updated 2026-07-21 at 11:01:36
SFO ARPT 6 MIN RTE 92 15 MIN RTE 84 21 MINMessage Signs: San Mateo County
Current Message Signs status for San Mateo County
Last Updated: 7/21/2026, 6:01:41 PM
Showing 24 results
San Mateo
Northbound
CM014 - SM NB101 SOF HILLSDALE BL, near San Mateo, Northbound, route US-101SFO ARPT 8 MIN
SF DWNTWN 22 MIN
HAYWARD 14 MIN
Updated 2026-07-21 at 11:01:36
SFO ARPT 8 MIN SF DWNTWN 22 MIN HAYWARD 14 MINPalo Alto
Northbound
CM016-SM101 N/B N/OF EMBARCADERO RD OC, near Palo Alto, Northbound, route US-101SFO ARPT 19 MIN
SAN MATEO 15 MIN
FREMONT 16 MIN
Updated 2026-07-21 at 11:01:36
SFO ARPT 19 MIN SAN MATEO 15 MIN FREMONT 16 MIN
San Mateo
Eastbound
CM040-SM 92 E/B E/of W. HILLSDALE BLVD, near San Mateo, Eastbound, route SR-92SFO ARPT 11 MIN
SF DWNTWN 24 MIN
MENLO PRK 13 MIN
Updated 2026-07-21 at 11:01:36
SFO ARPT 11 MIN SF DWNTWN 24 MIN MENLO PRK 13 MIN
Palo Alto
Eastbound
CM060-SM 84 E/B W/OF DUMBARTON BRG, near Palo Alto, Eastbound, route SR-84FREMONT 13 MIN
HAYWARD 16 MIN
MILPITAS 26 MIN
Updated 2026-07-21 at 11:01:36
FREMONT 13 MIN HAYWARD 16 MIN MILPITAS 26 MINSan Mateo
Westbound
CM072-SM 92 W/B W/OF DE ANZA BLVD UC, near San Mateo, Westbound, route SR-92ROADWORK W-92
TO HALF MOON BAY
ONE WAY TRAFFIC
Updated 2026-07-21 at 11:01:36
ROADWORK W-92 TO HALF MOON BAY ONE WAY TRAFFICSan Mateo
Westbound
CM084 WB 92 E. FOSTER CITY BLVD, near San Mateo, Westbound, route SR-92HALF MOON 41 MIN
SFO ARPT 9 MIN
PALO ALTO 15 MIN
Updated 2026-07-21 at 11:01:36
HALF MOON 41 MIN SFO ARPT 9 MIN PALO ALTO 15 MINSan Mateo
Eastbound
CM085-SM 92 E/B E/OF FOSTER CITY BLVD, near San Mateo, Eastbound, route SR-92HAYWARD 10 MIN
CASTRO VY 11 MIN
FREMONT 28 MIN
Updated 2026-07-21 at 11:01:36
HAYWARD 10 MIN CASTRO VY 11 MIN FREMONT 28 MIN
Redwood City
Northbound
CM134_N280 SOF CANADA RD, near Redwood City, Northbound, route I-280ROADWORK W-92
TO HALF MOON BAY
ONE WAY TRAFFIC
Updated 2026-07-21 at 11:01:36
ROADWORK W-92 TO HALF MOON BAY ONE WAY TRAFFICBurlingame
Southbound
CM135_S280 NOF BLACK MOUNTAIN RD, near Burlingame, Southbound, route I-280ROADWORK W-92
TO HALF MOON BAY
ONE WAY TRAFFIC
Updated 2026-07-21 at 11:01:36
ROADWORK W-92 TO HALF MOON BAY ONE WAY TRAFFICBurlingame
Northbound
CM012-SM101 N/B N/OF BROADWAY OC, near Burlingame, Northbound, route US-101OFF
Sign is Blank
Sign is off. No message displayed.Updated 2026-07-21 at 11:01:36
Burlingame
Southbound
CM013-SM101 S/B N/OF PENINSULA AVE OC, near Burlingame, Southbound, route US-101OFF
Sign is Blank
Sign is off. No message displayed.Updated 2026-07-21 at 11:01:36
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What This Page Shows
This page collects live message signs data for San Mateo County across every Caltrans district that publishes this data type.
- Current items: 24
- Matching routes: I-280, SR-84, SR-92, US-101
- Scope: County-wide view with route and location filters
About Message Signs in San Mateo County
View Real-time message signs updates for highways in San Mateo County, including I-280, SR-84, SR-92, US-101. Whether you are commuting through San Mateo County or traveling long-distance, these Message Signs, road conditions, highway status provide vital information for a safe trip.
Data is sourced directly from Caltrans and includes coverage of major routes and local highways within the county, specifically monitoring I-280, SR-84, SR-92, US-101. Check back for latest updates on congestion, weather impacts, and road work.