US Bridges

Avra Valley Road over Small Wash

Fair

Pima County, Arizona · 500 Ft West Anway Road · Structure no. 09804

Built
1900
125 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
23 ft
4 main spans
Daily traffic
971
2022 count
Owner
County
County Highway Agency

About this bridge

Avra Valley Road over Small Wash is a steel culvert carrying Avra Valley Road over Small Wash in Pima County, Arizona. It was built in 1900, so it is 125 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 971 vehicles a day, roughly 2% of them trucks, projected to reach 981 by 2042. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAvra Valley Road
CrossesSmall Wash
Location500 Ft West Anway Road
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates32.3787, -111.32267
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length23 ft (7 m)
Longest span4 ft (1.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic971 (2022)
Projected traffic981 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Avra Valley Road over Small Wash built?

It was built in 1900, making it 125 years old in 2025.

What condition is Avra Valley Road over Small Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Avra Valley Road over Small Wash carry?

About 971 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Avra Valley Road over Small Wash?

The structure is 23 ft (7 m) long with a longest span of 4 ft (1.2 m).

Who owns Avra Valley Road over Small Wash?

It is owned by the County Highway Agency.