US Bridges

I 10; EB over Adams Peak Wash

Fair

Cochise County, Arizona · 7.4 MI E JCT Rt 90 · Structure no. 01604

Built
1972
53 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete Continuous
Length
149 ft
3 main spans
Daily traffic
11,095
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Adams Peak Wash is a concrete continuous tee beam carrying I 10; EB over Adams Peak Wash in Cochise County, Arizona. It was built in 1972, so it is 53 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 11,095 vehicles a day, roughly 33% of them trucks, projected to reach 17,600 by 2042. The structure is 149 ft (45.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; EB
CrossesAdams Peak Wash
Location7.4 MI E JCT Rt 90
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates31.978, -110.2262
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span57 ft (17.4 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,095 (2022)
Projected traffic17,600 by 2042
Trucks33%
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 Adams Peak Wash built?

It was built in 1972, making it 53 years old in 2025.

What condition is I 10; EB over Adams Peak 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 February 2025.

How much traffic does I 10; EB over Adams Peak Wash carry?

About 11,095 vehicles per day (2022 count), of which roughly 33% are trucks.

How long is I 10; EB over Adams Peak Wash?

The structure is 149 ft (45.4 m) long with a longest span of 57 ft (17.4 m) and a deck 45 ft wide.

Who owns I 10; EB over Adams Peak Wash?

It is owned by the State Highway Agency.