How many railroad crossings are in San Mateo, California?
The FRA inventory of lists 10 public railroad crossings in San Mateo, California.
- Public crossings
- 10
- Public crossings with identified warning devices
- 10
- Public crossings reported with gates
- 80%
- Most trains a day reported
- 116
- Reported incidents at public crossings since 2016
- 5
- Gate share compared with the state
- 18 percentage points higher
Where are these public crossings?
Browse the listThe map shows the available locations on this page. Area shading may include crossings outside this group.
Gates are reported at 80% of these crossings.
- Gates880%
- Flashing lights without reported gates220%
- Signs without reported gates or lights00%
- Other or not reported00%
Each crossing appears once, grouped by its reported warning devices. Missing fields don't mean the warning devices are absent.
Which crossings in San Mateo, California have the most trains?
- The crossing on Bellevue Avenue reports 116 trains a day.
- The crossing on 1st Avenue reports 116 trains a day.
- The crossing on 2nd Avenue reports 116 trains a day.
- The crossing on 3rd Avenue reports 116 trains a day.
- The crossing on 4th Avenue reports 116 trains a day.
They are on Bellevue Avenue, 1st Avenue, 2nd Avenue, 3rd Avenue and 4th Avenue. None of the 10 public crossings in San Mateo, California has a quiet-zone designation.
Where can you watch trains in San Mateo?
3 busy crossings here sit next to a public park or station, so you can watch from a public place.
See where to watch trains in San Mateo
Parks and stations © OpenStreetMap contributors
Railroad bridges over roads in this city
- CALTRAIN & UP RR over 42ND AVE
Vertical clearance under the bridge: 16 ft 9 in (5.13 m), as recorded in the National Bridge Inventory, 2025.
- CALTRAIN & UP RR over EAST POPLAR AVE
Vertical clearance under the bridge: 14 ft 11 in (4.57 m), as recorded in the National Bridge Inventory, 2025.
- CALTRAIN & UP RR over HILLSDALE BLVD
Vertical clearance under the bridge: 15 ft 2 in (4.64 m), as recorded in the National Bridge Inventory, 2025.
- CALTRAIN & UP RR over SANTA INEZ AVE
Vertical clearance under the bridge: 14 ft 11 in (4.57 m), as recorded in the National Bridge Inventory, 2025.
- CALTRAIN & UP RR over TILTON AVENUE
Vertical clearance under the bridge: 8 ft 7 in (2.63 m), as recorded in the National Bridge Inventory, 2025.
Clearance is the measured height recorded by the state in the National Bridge Inventory. The sign at the bridge can show a different figure.
Source: FHWA National Bridge Inventory, 2025.
Incident counts cover January 2016 through 31 July 2026. They describe reported events, not a rating of crossings.
Traffic counts were collected at different times. Road count years appear with each record; train count years are not reported separately.
How many trains pass each crossing?
Public crossings are ordered by reported trains a day, from most to lowest.
- Bellevue AvenueSan Mateo1,098 vehicles a day2021 road count
- 1st AvenueSan Mateo3,048 vehicles a day2021 road count
- 2nd AvenueSan Mateo4,033 vehicles a day2021 road count
- 3rd AvenueSan Mateo6,893 vehicles a day2021 road count
- 4th AvenueSan Mateo7,805 vehicles a day2021 road count
- 5th AvenueSan Mateo5,253 vehicles a day2021 road count
- 9th AvenueSan Mateo6,573 vehicles a day2021 road count
- Hayward Park Sta N PathwaySan MateoNo road count has been reported.
- Hayward Park Sta S PathwaySan MateoNo road count has been reported.
- Villa TerraceSan Mateo841 vehicles a day2021 road count
Trains blocking a crossing in San Mateo? How to report it.Blocked crossing rules in California
Source: Federal Railroad Administration crossing inventory and reported highway-rail incidents. Sources and dates