US Bridges

IRR BIA RTE 23 over Wash

Good

Pima County, Arizona · 5.4 KM N of BIA 23/34 JCT · Structure no. 00000000000H664

Built
1974
51 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
200
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 23 over Wash is a concrete continuous culvert carrying IRR BIA RTE 23 over Wash in Pima County, Arizona. It was built in 1974, so it is 51 years old, older 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 245 by 2043. The structure is 32 ft (9.7 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesIRR BIA RTE 23
CrossesWash
Location5.4 KM N of BIA 23/34 JCT
RouteFederal Lands Road 23
CountyPima County
StateArizona
Coordinates32.4625, -112.24356
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span10 ft (3.1 m)
Deck width40 ft (12.1 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic245 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA RTE 23 over Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is IRR BIA RTE 23 over 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 January 2023.

How much traffic does IRR BIA RTE 23 over Wash carry?

About 200 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is IRR BIA RTE 23 over Wash?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3.1 m) and a deck 40 ft wide.

Who owns IRR BIA RTE 23 over Wash?

It is owned by the Bureau of Indian Affairs.