Arizona RD over Mule Gulch

Fair

Cochise County, Arizona · 0.2 MI S JCT SR 80 · Structure no. 08100

Built: 1939; 86 years old
Condition: Fair; inspected January 2023
Type: Culvert; Concrete Continuous
Length: 35 ft; 3 main spans
Daily traffic: 900; 2022 count
Owner: County; County Highway Agency

About this bridge

Arizona RD over Mule Gulch is a concrete continuous culvert carrying Arizona RD over Mule Gulch in Cochise County, Arizona. It was built in 1939, so it is 86 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 900 vehicles a day, roughly 5% of them trucks, projected to reach 910 by 2042. The structure is 35 ft (10.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesArizona RD

CrossesMule Gulch

Location0.2 MI S JCT SR 80

RouteCounty Highway 0

CountyCochise County

StateArizona

Coordinates31.4284, -109.8661

Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJanuary 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating55 US tons

Inventory rating33 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadUnknown

Structure length35 ft (10.7 m)

Longest span8 ft (2.4 m)

Deck width30 ft (9.1 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2022)

Projected traffic910 by 2042

Trucks5%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency

Maintained byCounty 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 Arizona RD over Mule Gulch built?

It was built in 1939, making it 86 years old in 2025.

What condition is Arizona RD over Mule Gulch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does Arizona RD over Mule Gulch carry?

About 900 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Arizona RD over Mule Gulch?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m) and a deck 30 ft wide.

Who owns Arizona RD over Mule Gulch?

It is owned by the County Highway Agency.