US Bridges

Oakdale Ave over Caltrain & UP RR

Good

San Francisco County, California · 0.3 Miles from 3rd · Structure no. 34C0050

Built
1998
27 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
111 ft
2 main spans
Daily traffic
12,000
2016 count
Owner
Railroad
Railroad

About this bridge

Oakdale Ave over Caltrain & UP RR is a prestressed concrete slab carrying Oakdale Ave over Caltrain & UP RR in San Francisco County, California. It was built in 1998, so it is 27 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,000 vehicles a day, roughly 15% of them trucks, projected to reach 20,953 by 2043. The structure is 111 ft (33.8 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOakdale Ave
CrossesCaltrain & UP RR
Location0.3 Miles from 3rd
RouteCity Street 0
CountySan Francisco County
StateCalifornia
Coordinates37.73722, -122.39516
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length111 ft (33.8 m)
Longest span49 ft (14.8 m)
Deck width94 ft (28.7 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2016)
Projected traffic20,953 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oakdale Ave over Caltrain & UP RR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Oakdale Ave over Caltrain & UP RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Oakdale Ave over Caltrain & UP RR carry?

About 12,000 vehicles per day (2016 count), of which roughly 15% are trucks.

How long is Oakdale Ave over Caltrain & UP RR?

The structure is 111 ft (33.8 m) long with a longest span of 49 ft (14.8 m) and a deck 94 ft wide.

Who owns Oakdale Ave over Caltrain & UP RR?

It is owned by the Railroad and maintained by the County Highway Agency.