US Bridges

Helendale RD over Buckhorn Wash

Good

San Bernardino County, California · 0.7 MI N Vista RD · Structure no. 54C0418

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
121 ft
4 main spans
Daily traffic
1,100
2020 count
Owner
County
County Highway Agency

About this bridge

Helendale RD over Buckhorn Wash is a concrete continuous slab carrying Helendale RD over Buckhorn Wash in San Bernardino County, California. It was built in 1972, so it is 53 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 1,100 vehicles a day, roughly 1% of them trucks, projected to reach 1,250 by 2041. The structure is 121 ft (36.9 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHelendale RD
CrossesBuckhorn Wash
Location0.7 MI N Vista RD
RouteCounty Highway 0
Coordinates34.75608, -117.33021
Functional classRural Major Collector

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating25.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span34 ft (10.4 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2020)
Projected traffic1,250 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Helendale RD over Buckhorn Wash built?

It was built in 1972, making it 53 years old in 2025.

What condition is Helendale RD over Buckhorn Wash 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 2023.

How much traffic does Helendale RD over Buckhorn Wash carry?

About 1,100 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Helendale RD over Buckhorn Wash?

The structure is 121 ft (36.9 m) long with a longest span of 34 ft (10.4 m) and a deck 39 ft wide.

Who owns Helendale RD over Buckhorn Wash?

It is owned by the County Highway Agency.