US Bridges

I 10; EB over Benson SPRR

Fair

Cochise County, Arizona · 1.9 MI E JCT SR 90 · Structure no. 01348

Built
1969
56 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
156 ft
3 main spans
Daily traffic
11,843
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Benson SPRR is a prestressed concrete continuous stringer/multi-beam or girder carrying I 10; EB over Benson SPRR in Cochise County, Arizona. It was built in 1969, so it is 56 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 11,843 vehicles a day, roughly 34% of them trucks, projected to reach 11,853 by 2042. The structure is 156 ft (47.5 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; EB
CrossesBenson SPRR
Location1.9 MI E JCT SR 90
RouteInterstate 10
CountyCochise County
StateArizona
Coordinates31.9759, -110.3169
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.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span57 ft (17.4 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,843 (2022)
Projected traffic11,853 by 2042
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 10; EB over Benson SPRR built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 10; EB over Benson SPRR 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 Benson SPRR carry?

About 11,843 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is I 10; EB over Benson SPRR?

The structure is 156 ft (47.5 m) long with a longest span of 57 ft (17.4 m) and a deck 41 ft wide.

Who owns I 10; EB over Benson SPRR?

It is owned by the State Highway Agency.