US Bridges

State Route 138 over Horsethief Creek

Good

San Bernardino County, California · 08-SBD-138-R24.11 · Structure no. 54 1271

Built
2016
9 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
292 ft
3 main spans
Daily traffic
1,600
2021 count
Owner
State
State Highway Agency

About this bridge

State Route 138 over Horsethief Creek is a prestressed concrete stringer/multi-beam or girder carrying State Route 138 over Horsethief Creek in San Bernardino County, California. It was built in 2016, so it is 9 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 1,600 vehicles a day, roughly 6% of them trucks, projected to reach 2,000 by 2042. The structure is 292 ft (88.9 m) long and 48 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesState Route 138
CrossesHorsethief Creek
Location08-SBD-138-R24.11
RouteState Highway 138
Coordinates34.31019, -117.34593
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length292 ft (88.9 m)
Longest span185 ft (56.4 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2021)
Projected traffic2,000 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 km)
TollOn a free road
National Highway SystemNo

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 State Route 138 over Horsethief Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is State Route 138 over Horsethief Creek 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 September 2024.

How much traffic does State Route 138 over Horsethief Creek carry?

About 1,600 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is State Route 138 over Horsethief Creek?

The structure is 292 ft (88.9 m) long with a longest span of 185 ft (56.4 m) and a deck 48 ft wide.

Who owns State Route 138 over Horsethief Creek?

It is owned by the State Highway Agency.