US Bridges

Liberty Lane over Dry Wash

Good

Maricopa County, Arizona · Approx. 21st Street · Structure no. 07749

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Culvert
Steel
Length
24 ft
3 main spans
Daily traffic
3,793
2002 count
Owner
City
City or Municipal Highway Agency

About this bridge

Liberty Lane over Dry Wash is a steel culvert carrying Liberty Lane over Dry Wash in Maricopa 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 3,793 vehicles a day, roughly 1% of them trucks, projected to reach 4,000 by 2030. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLiberty Lane
CrossesDry Wash
LocationApprox. 21st Street
RouteCity Street 0
StateArizona
Coordinates33.2923, -112.0381
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating71.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,793 (2002)
Projected traffic4,000 by 2030
Trucks1%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Liberty Lane over Dry Wash built?

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

What condition is Liberty Lane over Dry 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 March 2023.

How much traffic does Liberty Lane over Dry Wash carry?

About 3,793 vehicles per day (2002 count), of which roughly 1% are trucks.

How long is Liberty Lane over Dry Wash?

The structure is 24 ft (7.3 m) long with a longest span of 6 ft (1.8 m).

Who owns Liberty Lane over Dry Wash?

It is owned by the City or Municipal Highway Agency.