US Bridges

I 10; EB over Tucson Diversion Chnl

Good

Pima County, Arizona · 2.4 MI E JCT I-19 · Structure no. 01109

Built
1966
59 years old, rebuilt 1987
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
33,951
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Tucson Diversion Chnl is a prestressed concrete stringer/multi-beam or girder carrying I 10; EB over Tucson Diversion Chnl in Pima County, Arizona. It was built in 1966 and reconstructed in 1987, so it is 59 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33,951 vehicles a day, roughly 20% of them trucks, projected to reach 33,961 by 2042. The structure is 90 ft (27.4 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10; EB
CrossesTucson Diversion Chnl
Location2.4 MI E JCT I-19
RouteInterstate 10
StateArizona
Coordinates32.175, -110.9408
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span85 ft (25.9 m)
Deck width68 ft (20.8 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,951 (2022)
Projected traffic33,961 by 2042
Trucks20%
Lanes on structure3
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 Tucson Diversion Chnl built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1987.

What condition is I 10; EB over Tucson Diversion Chnl in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does I 10; EB over Tucson Diversion Chnl carry?

About 33,951 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is I 10; EB over Tucson Diversion Chnl?

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 68 ft wide.

Who owns I 10; EB over Tucson Diversion Chnl?

It is owned by the State Highway Agency.