US Bridges

Liberty Avenue over Airport Wash

Good

Pima County, Arizona · 1/8 MI S Drexel /Liberty · Structure no. 10317

Built
1988
37 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
77 ft
6 main spans
Daily traffic
250
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Liberty Avenue over Airport Wash is a concrete continuous culvert carrying Liberty Avenue over Airport Wash in Pima County, Arizona. It was built in 1988, so it is 37 years old, younger 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 250 vehicles a day, roughly 2% of them trucks, projected to reach 260 by 2040. The structure is 77 ft (23.5 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLiberty Avenue
CrossesAirport Wash
Location1/8 MI S Drexel /Liberty
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.1464, -110.9733
Functional classUrban Collector

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 geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic260 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Liberty Avenue over Airport Wash built?

It was built in 1988, making it 37 years old in 2025.

What condition is Liberty Avenue 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 Liberty Avenue over Airport Wash carry?

About 250 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Liberty Avenue over Airport Wash?

The structure is 77 ft (23.5 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns Liberty Avenue over Airport Wash?

It is owned by the City or Municipal Highway Agency.