US Bridges

SR 82 over Comoro Canyon

Fair

Santa Cruz County, Arizona · 8.4 MI E JCT B19 · Structure no. 00412

Built
1954
71 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
112 ft
4 main spans
Daily traffic
1,831
2022 count
Owner
State
State Highway Agency

About this bridge

SR 82 over Comoro Canyon is a concrete continuous slab carrying SR 82 over Comoro Canyon in Santa Cruz County, Arizona. It was built in 1954, so it is 71 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 1,831 vehicles a day, roughly 21% of them trucks, projected to reach 1,841 by 2042. The structure is 112 ft (34.1 m) long and 32 ft wide. If it were closed, the detour would be 77.1 mi (124 km).

Location

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CarriesSR 82
CrossesComoro Canyon
Location8.4 MI E JCT B19
RouteState Highway 82
CountySanta Cruz County
StateArizona
Coordinates31.433, -110.8437
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length112 ft (34.1 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,831 (2022)
Projected traffic1,841 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed77.1 mi (124 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$1,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 82 over Comoro Canyon built?

It was built in 1954, making it 71 years old in 2025.

What condition is SR 82 over Comoro 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 February 2024.

How much traffic does SR 82 over Comoro Canyon carry?

About 1,831 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is SR 82 over Comoro Canyon?

The structure is 112 ft (34.1 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns SR 82 over Comoro Canyon?

It is owned by the State Highway Agency.