US Bridges

IRR I 19; NB & SB over Wash

Good

Pima County, Arizona · 9.3 MI S JCT 1-10 · Structure no. 05823

Built
1968
57 years old, rebuilt 1985
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
48,315
2022 count
Owner
State
State Highway Agency

About this bridge

IRR I 19; NB & SB over Wash is a concrete continuous culvert carrying IRR I 19; NB & SB over Wash in Pima County, Arizona. It was built in 1968 and reconstructed in 1985, so it is 57 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 48,315 vehicles a day, roughly 15% of them trucks, projected to reach 48,325 by 2042. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIRR I 19; NB & SB
CrossesWash
Location9.3 MI S JCT 1-10
RouteInterstate 19
CountyPima County
StateArizona
Coordinates32.0665, -110.993
Functional classRural Principal Arterial - Interstate

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 inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 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 traffic48,315 (2022)
Projected traffic48,325 by 2042
Trucks15%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR I 19; NB & SB over Wash built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1985.

What condition is IRR I 19; NB & SB 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 February 2024.

How much traffic does IRR I 19; NB & SB over Wash carry?

About 48,315 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR I 19; NB & SB over Wash?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns IRR I 19; NB & SB over Wash?

It is owned by the State Highway Agency.