US Bridges

I 10; Frontage RD over Wash

Fair

Cochise County, Arizona · 17.4 MI East JCT US 191 · Structure no. 06170

Built
1940
85 years old, rebuilt 1962
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
44 ft
4 main spans
Daily traffic
1,020
2024 count
Owner
State
State Highway Agency

About this bridge

I 10; Frontage RD over Wash is a concrete continuous culvert carrying I 10; Frontage RD over Wash in Cochise County, Arizona. It was built in 1940 and reconstructed in 1962, so it is 85 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 1,020 vehicles a day, roughly 11% of them trucks, projected to reach 1,030 by 2042. The structure is 44 ft (13.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; Frontage RD
CrossesWash
Location17.4 MI East JCT US 191
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.2948, -109.3405
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.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2024)
Projected traffic1,030 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 I 10; Frontage RD over Wash built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1962.

What condition is I 10; Frontage RD over Wash 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 October 2024.

How much traffic does I 10; Frontage RD over Wash carry?

About 1,020 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I 10; Frontage RD over Wash?

The structure is 44 ft (13.4 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns I 10; Frontage RD over Wash?

It is owned by the State Highway Agency.