US Bridges

FOOTHILL-S280 Onrp over UP RR

Fair

Santa Clara County, California · 04-SCL-280-11.47-LATS · Structure no. 37 0241K

Built
1967
58 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
170 ft
2 main spans
Daily traffic
3,800
1998 count
Owner
State
State Highway Agency

About this bridge

FOOTHILL-S280 Onrp over UP RR is a concrete continuous box beam or girders - multiple carrying FOOTHILL-S280 Onrp over UP RR in Santa Clara County, California. It was built in 1967, so it is 58 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,800 vehicles a day, roughly 2% of them trucks, projected to reach 5,470 by 2042. The structure is 170 ft (51.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFOOTHILL-S280 Onrp
CrossesUP RR
Location04-SCL-280-11.47-LATS
RouteInterstate 280
CountySanta Clara County
StateCalifornia
Coordinates37.33341, -122.0693
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span87 ft (26.4 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (1998)
Projected traffic5,470 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FOOTHILL-S280 Onrp over UP RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is FOOTHILL-S280 Onrp over UP RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does FOOTHILL-S280 Onrp over UP RR carry?

About 3,800 vehicles per day (1998 count), of which roughly 2% are trucks.

How long is FOOTHILL-S280 Onrp over UP RR?

The structure is 170 ft (51.8 m) long with a longest span of 87 ft (26.4 m) and a deck 30 ft wide.

Who owns FOOTHILL-S280 Onrp over UP RR?

It is owned by the State Highway Agency.