US Bridges

Interstate 10 over UP RR Spur

Fair

San Bernardino County, California · 08-SBD-010-11.74-SBD · Structure no. 54 0416

Built
1947
78 years old, rebuilt 1978
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
195,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 10 over UP RR Spur is a concrete slab carrying Interstate 10 over UP RR Spur in San Bernardino County, California. It was built in 1947 and reconstructed in 1978, so it is 78 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 5 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 195,000 vehicles a day, roughly 10% of them trucks, projected to reach 225,000 by 2043. The structure is 25 ft (7.6 m) long and 172 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 10
CrossesUP RR Spur
Location08-SBD-010-11.74-SBD
RouteInterstate 10
CountySan Bernardino County
StateCalifornia
Coordinates34.06694, -117.51364
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width172 ft (52.4 m)
Roadway width168 ft (51.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic195,000 (2021)
Projected traffic225,000 by 2043
Trucks10%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 Interstate 10 over UP RR Spur built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1978.

What condition is Interstate 10 over UP RR Spur 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 June 2023.

How much traffic does Interstate 10 over UP RR Spur carry?

About 195,000 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Interstate 10 over UP RR Spur?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 172 ft wide.

Who owns Interstate 10 over UP RR Spur?

It is owned by the State Highway Agency.