US Bridges

Interstate 15 over Oro Grande Wash

Fair

San Bernardino County, California · 08-SBD-015-39.04-VCTV · Structure no. 54 1340

Built
1954
71 years old, rebuilt 1964
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
52 ft
5 main spans
Daily traffic
100,000
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 15 over Oro Grande Wash is a steel culvert carrying Interstate 15 over Oro Grande Wash in San Bernardino County, California. It was built in 1954 and reconstructed in 1964, so it is 71 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 100,000 vehicles a day, roughly 18% of them trucks, projected to reach 110,000 by 2044. The structure is 52 ft (15.7 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesInterstate 15
CrossesOro Grande Wash
Location08-SBD-015-39.04-VCTV
RouteInterstate 15
CountySan Bernardino County
StateCalifornia
Coordinates34.48869, -117.33272
Functional classRural 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans5
Design loadUnknown
Structure length52 ft (15.7 m)
Longest span8 ft (2.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100,000 (2020)
Projected traffic110,000 by 2044
Trucks18%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 15 over Oro Grande Wash built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1964.

What condition is Interstate 15 over Oro Grande Wash 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 March 2024.

How much traffic does Interstate 15 over Oro Grande Wash carry?

About 100,000 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is Interstate 15 over Oro Grande Wash?

The structure is 52 ft (15.7 m) long with a longest span of 8 ft (2.5 m).

Who owns Interstate 15 over Oro Grande Wash?

It is owned by the State Highway Agency.