US Bridges

SB 19 over Nogales Wash

Good

Cochise County, Arizona · US Border · Structure no. 06518

Built
1936
89 years old, rebuilt 1979
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
30 ft
1 main span
Daily traffic
8,069
2023 count
Owner
State
State Highway Agency

About this bridge

SB 19 over Nogales Wash is a concrete continuous culvert carrying SB 19 over Nogales Wash in Cochise County, Arizona. It was built in 1936 and reconstructed in 1979, so it is 89 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 8,069 vehicles a day, roughly 28% of them trucks, projected to reach 8,079 by 2042. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB 19
CrossesNogales Wash
LocationUS Border
RouteState Highway 19
StateArizona
Coordinates31.341, -110.9355
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,069 (2023)
Projected traffic8,079 by 2042
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 SB 19 over Nogales Wash built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1979.

What condition is SB 19 over Nogales 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 April 2024.

How much traffic does SB 19 over Nogales Wash carry?

About 8,069 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is SB 19 over Nogales Wash?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m).

Who owns SB 19 over Nogales Wash?

It is owned by the State Highway Agency.