I 19; NB & SB over Wash

Good

Santa Cruz County, Arizona · 10.7 MI South CO Bdry · Structure no. 06667

Built: 1978; 47 years old
Condition: Good; inspected June 2024
Type: Culvert; Steel
Length: 26 ft; 2 main spans
Daily traffic: 16,010; 2024 count
Owner: State; State Highway Agency

About this bridge

I 19; NB & SB over Wash is a steel culvert carrying I 19; NB & SB over Wash in Santa Cruz County, Arizona. It was built in 1978, so it is 47 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 16,010 vehicles a day, roughly 9% of them trucks, projected to reach 16,020 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

No coordinates are recorded for this structure.

CarriesI 19; NB & SB

CrossesWash

Location10.7 MI South CO Bdry

RouteInterstate 19

CountySanta Cruz County

StateArizona

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.

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	7 Good	Some minor problems.

Last inspectionJune 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 rating99 US tons

Inventory rating99 US tons

Structure

Structure typeCulvert

MaterialSteel

DeckNot applicable

Main spans2

Design loadHS 20

Structure length26 ft (7.9 m)

Longest span12 ft (3.7 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,010 (2024)

Projected traffic16,020 by 2042

Trucks9%

Lanes on structure4

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1978, making it 47 years old in 2025.

What condition is 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 June 2024.

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

About 16,010 vehicles per day (2024 count), of which roughly 9% are trucks.

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

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns I 19; NB & SB over Wash?

It is owned by the State Highway Agency.