US Bridges

S 12th Ave over Airport Wash

Good

Pima County, Arizona · 0.1 MI S. Drexel RD · Structure no. 09036

Built
1966
59 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
82 ft
6 main spans
Daily traffic
12,773
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

S 12th Ave over Airport Wash is a concrete continuous culvert carrying S 12th Ave over Airport Wash in Pima County, Arizona. It was built in 1966, so it is 59 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,773 vehicles a day, roughly 5% of them trucks, projected to reach 12,783 by 2040. The structure is 82 ft (25 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesS 12th Ave
CrossesAirport Wash
Location0.1 MI S. Drexel RD
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.147, -110.9775
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating54 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length82 ft (25 m)
Longest span12 ft (3.7 m)
Deck width87 ft (26.4 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,773 (2020)
Projected traffic12,783 by 2040
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 S 12th Ave over Airport Wash built?

It was built in 1966, making it 59 years old in 2025.

What condition is S 12th Ave over Airport Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2021.

How much traffic does S 12th Ave over Airport Wash carry?

About 12,773 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is S 12th Ave over Airport Wash?

The structure is 82 ft (25 m) long with a longest span of 12 ft (3.7 m) and a deck 87 ft wide.

Who owns S 12th Ave over Airport Wash?

It is owned by the City or Municipal Highway Agency.