US Bridges

Baker Bl over Mojave River

Fair

San Bernardino County, California · 0.2 MI SW Death Valley RD · Structure no. 54C0127

Built
1939
86 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
411 ft
22 main spans
Daily traffic
5,541
2023 count
Owner
County
County Highway Agency

About this bridge

Baker Bl over Mojave River is a wood or timber stringer/multi-beam or girder carrying Baker Bl over Mojave River in San Bernardino County, California. It was built in 1939, so it is 86 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 5,541 vehicles a day, roughly 30% of them trucks, projected to reach 8,756 by 2045. The structure is 411 ft (125.3 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBaker Bl
CrossesMojave River
Location0.2 MI SW Death Valley RD
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates35.26372, -116.07755
Functional classRural Major Collector

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.
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans22
Design loadH 15
Structure length411 ft (125.3 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,541 (2023)
Projected traffic8,756 by 2045
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Baker Bl over Mojave River built?

It was built in 1939, making it 86 years old in 2025.

What condition is Baker Bl over Mojave River 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 December 2023.

How much traffic does Baker Bl over Mojave River carry?

About 5,541 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Baker Bl over Mojave River?

The structure is 411 ft (125.3 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns Baker Bl over Mojave River?

It is owned by the County Highway Agency.