US Bridges

US 180 over Beaver Dam Wash

Fair

Apache County, Arizona · 20.2 MI NW JCT SR 61 · Structure no. 01667

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
164 ft
2 main spans
Daily traffic
418
2022 count
Owner
State
State Highway Agency

About this bridge

US 180 over Beaver Dam Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying US 180 over Beaver Dam Wash in Apache County, Arizona. It was built in 1975, so it is 50 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 418 vehicles a day, roughly 18% of them trucks, projected to reach 428 by 2042. The structure is 164 ft (50 m) long and 47 ft wide. If it were closed, the detour would be 51 mi (82 km).

Location

Open in Google Maps
CarriesUS 180
CrossesBeaver Dam Wash
Location20.2 MI NW JCT SR 61
RouteU.S. Route 180
CountyApache County
StateArizona
Coordinates34.6694, -109.72359
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length164 ft (50 m)
Longest span81 ft (24.7 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic418 (2022)
Projected traffic428 by 2042
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 180 over Beaver Dam Wash built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 180 over Beaver Dam 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 October 2024.

How much traffic does US 180 over Beaver Dam Wash carry?

About 418 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is US 180 over Beaver Dam Wash?

The structure is 164 ft (50 m) long with a longest span of 81 ft (24.7 m) and a deck 47 ft wide.

Who owns US 180 over Beaver Dam Wash?

It is owned by the State Highway Agency.