US Bridges

I 10; EB over Cornfield Canyon

Fair

Cochise County, Arizona · 3.3 MI W JCT SR 90 · Structure no. 05572

Built
1958
67 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
64 ft
6 main spans
Daily traffic
14,502
2018 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Cornfield Canyon is a concrete continuous culvert carrying I 10; EB over Cornfield Canyon in Cochise County, Arizona. It was built in 1958, so it is 67 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 14,502 vehicles a day, roughly 22% of them trucks, projected to reach 14,512 by 2040. The structure is 64 ft (19.5 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; EB
CrossesCornfield Canyon
Location3.3 MI W JCT SR 90
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates31.96292, -110.40113
Functional classRural Principal Arterial - Interstate

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 inspectionFebruary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span10 ft (3 m)
Deck width46 ft (13.9 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,502 (2018)
Projected traffic14,512 by 2040
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 I 10; EB over Cornfield Canyon built?

It was built in 1958, making it 67 years old in 2025.

What condition is I 10; EB over Cornfield Canyon 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 February 2024.

How much traffic does I 10; EB over Cornfield Canyon carry?

About 14,502 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is I 10; EB over Cornfield Canyon?

The structure is 64 ft (19.5 m) long with a longest span of 10 ft (3 m) and a deck 46 ft wide.

Who owns I 10; EB over Cornfield Canyon?

It is owned by the State Highway Agency.