US Bridges

SR 83 over Gardner Canyon

Fair

Pima County, Arizona · 4.8 MI N JCT SR 82 · Structure no. 00806

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
128 ft
4 main spans
Daily traffic
2,488
2022 count
Owner
State
State Highway Agency

About this bridge

SR 83 over Gardner Canyon is a concrete continuous slab carrying SR 83 over Gardner Canyon in Pima County, Arizona. It was built in 1965, so it is 60 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 2,488 vehicles a day, roughly 11% of them trucks, projected to reach 2,498 by 2042. The structure is 128 ft (39 m) long and 39 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

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CarriesSR 83
CrossesGardner Canyon
Location4.8 MI N JCT SR 82
RouteState Highway 83
CountyPima County
StateArizona
Coordinates31.73594, -110.66242
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length128 ft (39 m)
Longest span35 ft (10.7 m)
Deck width39 ft (11.9 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,488 (2022)
Projected traffic2,498 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 SR 83 over Gardner Canyon built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR 83 over Gardner 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 83 over Gardner Canyon carry?

About 2,488 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR 83 over Gardner Canyon?

The structure is 128 ft (39 m) long with a longest span of 35 ft (10.7 m) and a deck 39 ft wide.

Who owns SR 83 over Gardner Canyon?

It is owned by the State Highway Agency.