US Bridges

Alvernon Way over Earp Wash

Good

Pima County, Arizona · 0.5 MI S JCT Drexel RD · Structure no. 08729

Built
1984
41 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
50 ft
4 main spans
Daily traffic
16,713
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Alvernon Way over Earp Wash is a concrete continuous culvert carrying Alvernon Way over Earp Wash in Pima County, Arizona. It was built in 1984, so it is 41 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 16,713 vehicles a day, projected to reach 16,723 by 2040. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesAlvernon Way
CrossesEarp Wash
Location0.5 MI S JCT Drexel RD
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.1409, -110.9093
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,713 (2020)
Projected traffic16,723 by 2040
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Alvernon Way over Earp Wash built?

It was built in 1984, making it 41 years old in 2025.

What condition is Alvernon Way over Earp 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 Alvernon Way over Earp Wash carry?

About 16,713 vehicles per day (2020 count).

How long is Alvernon Way over Earp Wash?

The structure is 50 ft (15.2 m) long with a longest span of 8 ft (2.4 m).

Who owns Alvernon Way over Earp Wash?

It is owned by the City or Municipal Highway Agency.