US Bridges

Alvernon Way over Small Wash

Good

Pima County, Arizona · 0.3 MI of Irvington · Structure no. 08731

Built
1984
41 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
50 ft
4 main spans
Daily traffic
47,794
2022 count
Owner
County
County Highway Agency

About this bridge

Alvernon Way over Small Wash is a concrete continuous culvert carrying Alvernon Way over Small 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 47,794 vehicles a day, roughly 5% of them trucks, projected to reach 47,804 by 2042. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAlvernon Way
CrossesSmall Wash
Location0.3 MI of Irvington
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates32.1672, -110.91
Functional classUrban Other Principal 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,794 (2022)
Projected traffic47,804 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Alvernon Way over Small Wash built?

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

What condition is Alvernon Way over Small 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 2024.

How much traffic does Alvernon Way over Small Wash carry?

About 47,794 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Alvernon Way over Small Wash?

The structure is 50 ft (15.2 m) long with a longest span of 10 ft (3 m).

Who owns Alvernon Way over Small Wash?

It is owned by the County Highway Agency.