US Bridges

US 95 over Castle Dome Wash

Fair

Yuma County, Arizona · 29.0 MI N JCT I-8 · Structure no. 00583

Built
1961
64 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
171 ft
6 main spans
Daily traffic
2,365
2021 count
Owner
State
State Highway Agency

About this bridge

US 95 over Castle Dome Wash is a concrete continuous slab carrying US 95 over Castle Dome Wash in Yuma County, Arizona. It was built in 1961, so it is 64 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 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 2,365 vehicles a day, roughly 15% of them trucks, projected to reach 2,375 by 2041. The structure is 171 ft (52.1 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesUS 95
CrossesCastle Dome Wash
Location29.0 MI N JCT I-8
RouteU.S. Route 95
CountyYuma County
StateArizona
Coordinates32.9397, -114.3071
Functional classRural Principal Arterial - Other

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,365 (2021)
Projected traffic2,375 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 95 over Castle Dome Wash built?

It was built in 1961, making it 64 years old in 2025.

What condition is US 95 over Castle Dome 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 February 2025.

How much traffic does US 95 over Castle Dome Wash carry?

About 2,365 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US 95 over Castle Dome Wash?

The structure is 171 ft (52.1 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns US 95 over Castle Dome Wash?

It is owned by the State Highway Agency.