US Bridges

IRR I 19; NB & SB over Wash

Good

Pima County, Arizona · 6.9 MI N JCT B 19 · Structure no. 05810

Built
1968
57 years old, rebuilt 1985
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
32 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 6% of them trucks, projected to reach 48,325 by 2042. The structure is 32 ft (9.8 m) long and 207 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIRR I 19; NB & SB
CrossesWash
Location6.9 MI N JCT B 19
RouteInterstate 19
CountyPima County
StateArizona
Coordinates32.00875, -110.99228
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 protection7 GoodSome minor problems.
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width207 ft (63.1 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,315 (2022)
Projected traffic48,325 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
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 6% are trucks.

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

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 207 ft wide.

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

It is owned by the State Highway Agency.