US Bridges

SR 80 over Willow Gulch

Fair

Cochise County, Arizona · 1.1 MI N JCT SR 82 · Structure no. 00107

Built
1934
91 years old, rebuilt 1959
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete
Length
162 ft
4 main spans
Daily traffic
4,006
2021 count
Owner
State
State Highway Agency

About this bridge

SR 80 over Willow Gulch is a concrete tee beam carrying SR 80 over Willow Gulch in Cochise County, Arizona. It was built in 1934 and reconstructed in 1959, so it is 91 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 4,006 vehicles a day, roughly 12% of them trucks, projected to reach 4,016 by 2041. The structure is 162 ft (49.4 m) long and 36 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesSR 80
CrossesWillow Gulch
Location1.1 MI N JCT SR 82
RouteState Highway 80
CountyCochise County
StateArizona
Coordinates31.76, -110.1111
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span40 ft (12.2 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,006 (2021)
Projected traffic4,016 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 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 SR 80 over Willow Gulch built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1959.

What condition is SR 80 over Willow Gulch 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 SR 80 over Willow Gulch carry?

About 4,006 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR 80 over Willow Gulch?

The structure is 162 ft (49.4 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns SR 80 over Willow Gulch?

It is owned by the State Highway Agency.