US Bridges

SR 80 over Tombstone Canyon

Fair

Cochise County, Arizona · 1.3 MI South of JCT SR 90 · Structure no. 00481

Built
1932
93 years old, rebuilt 1956
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
2 main spans
Daily traffic
5,426
2022 count
Owner
State
State Highway Agency

About this bridge

SR 80 over Tombstone Canyon is a steel stringer/multi-beam or girder carrying SR 80 over Tombstone Canyon in Cochise County, Arizona. It was built in 1932 and reconstructed in 1956, so it is 93 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 5,426 vehicles a day, roughly 10% of them trucks, projected to reach 5,436 by 2042. The structure is 74 ft (22.6 m) long and 36 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesSR 80
CrossesTombstone Canyon
Location1.3 MI South of JCT SR 90
RouteState Highway 80
CountyCochise County
StateArizona
Coordinates31.5024, -110.0057
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span36 ft (11 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,426 (2022)
Projected traffic5,436 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 80 over Tombstone Canyon built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1956.

What condition is SR 80 over Tombstone Canyon 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 August 2023.

How much traffic does SR 80 over Tombstone Canyon carry?

About 5,426 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR 80 over Tombstone Canyon?

The structure is 74 ft (22.6 m) long with a longest span of 36 ft (11 m) and a deck 36 ft wide.

Who owns SR 80 over Tombstone Canyon?

It is owned by the State Highway Agency.