US Bridges

Dome Rock Road W over Wash

Fair

La Paz County, Arizona · 3.1 MI W JCT US 95 · Structure no. 10637

Built
1938
87 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
66 ft
3 main spans
Daily traffic
688
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Dome Rock Road W over Wash is a concrete slab carrying Dome Rock Road W over Wash in La Paz County, Arizona. It was built in 1938, so it is 87 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 688 vehicles a day, roughly 2% of them trucks, projected to reach 698 by 2041. The structure is 66 ft (20.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDome Rock Road W
CrossesWash
Location3.1 MI W JCT US 95
RouteCity Street 0
CountyLa Paz County
StateArizona
Coordinates33.64947, -114.26578
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length66 ft (20.1 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic688 (2021)
Projected traffic698 by 2041
Trucks2%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Dome Rock Road W over Wash built?

It was built in 1938, making it 87 years old in 2025.

What condition is Dome Rock Road W over Wash 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 March 2023.

How much traffic does Dome Rock Road W over Wash carry?

About 688 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Dome Rock Road W over Wash?

The structure is 66 ft (20.1 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Dome Rock Road W over Wash?

It is owned by the Town or Township Highway Agency.