US Bridges

Vista RD over Mojave River

Poor

San Bernardino County, California · 0.6 MI W of Nat Tra HWY · Structure no. 54C0414

Built
1968
57 years old, rebuilt 1973
Condition
Poor
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
282 ft
4 main spans
Daily traffic
6,650
2017 count
Owner
County
County Highway Agency

About this bridge

Vista RD over Mojave River is a concrete continuous tee beam carrying Vista RD over Mojave River in San Bernardino County, California. It was built in 1968 and reconstructed in 1973, so it is 57 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,650 vehicles a day, roughly 1% of them trucks, projected to reach 9,426 by 2042. The structure is 282 ft (86 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesVista RD
CrossesMojave River
Location0.6 MI W of Nat Tra HWY
RouteCounty Highway 0
Coordinates34.74347, -117.33134
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating34.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length282 ft (86 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,650 (2017)
Projected traffic9,426 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vista RD over Mojave River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1973.

What condition is Vista RD over Mojave River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Vista RD over Mojave River carry?

About 6,650 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Vista RD over Mojave River?

The structure is 282 ft (86 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns Vista RD over Mojave River?

It is owned by the County Highway Agency.