US Bridges

I 10; EB over Irvington Road

Fair

Pima County, Arizona · 3.9 MI E JCT I 19 · Structure no. 01217

Built
1967
58 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
261 ft
4 main spans
Daily traffic
35,109
2024 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Irvington Road is a steel continuous stringer/multi-beam or girder carrying I 10; EB over Irvington Road in Pima County, Arizona. It was built in 1967, so it is 58 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 35,109 vehicles a day, roughly 20% of them trucks, projected to reach 35,119 by 2042. The structure is 261 ft (79.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; EB
CrossesIrvington Road
Location3.9 MI E JCT I 19
RouteInterstate 10
CountyPima County
StateArizona
Coordinates32.1634, -110.9202
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length261 ft (79.6 m)
Longest span74 ft (22.6 m)
Deck width47 ft (14.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck30 ft (9.1 m)

Traffic and service

Average daily traffic35,109 (2024)
Projected traffic35,119 by 2042
Trucks20%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 10; EB over Irvington Road built?

It was built in 1967, making it 58 years old in 2025.

What condition is I 10; EB over Irvington Road 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 September 2024.

How much traffic does I 10; EB over Irvington Road carry?

About 35,109 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is I 10; EB over Irvington Road?

The structure is 261 ft (79.6 m) long with a longest span of 74 ft (22.6 m) and a deck 47 ft wide.

Who owns I 10; EB over Irvington Road?

It is owned by the State Highway Agency.