US Bridges

State Route 138 over Double Drain Creek

Good

San Bernardino County, California · 08-SBD-138-R18.29 · Structure no. 54 1220

Built
2018
7 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
669 ft
4 main spans
Daily traffic
5,500
2021 count
Owner
State
State Highway Agency

About this bridge

State Route 138 over Double Drain Creek is a concrete continuous box beam or girders - multiple carrying State Route 138 over Double Drain Creek in San Bernardino County, California. It was built in 2018, so it is 7 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 5,500 vehicles a day, roughly 13% of them trucks, projected to reach 7,000 by 2042. The structure is 669 ft (204 m) long and 43 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesState Route 138
CrossesDouble Drain Creek
Location08-SBD-138-R18.29
RouteState Highway 138
Coordinates34.32908, -117.44067
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.
Substructure8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length669 ft (204 m)
Longest span167 ft (51 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2021)
Projected traffic7,000 by 2042
Trucks13%
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 Double Drain Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is State Route 138 over Double Drain 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 Double Drain Creek carry?

About 5,500 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is State Route 138 over Double Drain Creek?

The structure is 669 ft (204 m) long with a longest span of 167 ft (51 m) and a deck 43 ft wide.

Who owns State Route 138 over Double Drain Creek?

It is owned by the State Highway Agency.