I 10; EB over Drain Channel

Fair

Pinal County, Arizona · 1.2 MI W JCT SR 84 · Structure no. 00908

Built: 1965; 60 years old
Condition: Fair; inspected May 2024
Type: Slab; Concrete Continuous
Length: 82 ft; 3 main spans
Daily traffic: 23,513; 2023 count
Owner: State; State Highway Agency

About this bridge

I 10; EB over Drain Channel is a concrete continuous slab carrying I 10; EB over Drain Channel in Pinal County, Arizona. It was built in 1965, so it is 60 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 23,513 vehicles a day, roughly 21% of them trucks, projected to reach 23,523 by 2042. The structure is 82 ft (25 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 10; EB

CrossesDrain Channel

Location1.2 MI W JCT SR 84

RouteInterstate 10

CountyPinal County

StateArizona

Coordinates32.73, -111.5332

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation6: Equal to 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 rating69 US tons

Inventory rating41 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length82 ft (25 m)

Longest span30 ft (9.1 m)

Deck width63 ft (19.2 m)

Roadway width60 ft (18.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,513 (2023)

Projected traffic23,523 by 2042

Trucks21%

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 Drain Channel built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 10; EB over Drain Channel 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 May 2024.

How much traffic does I 10; EB over Drain Channel carry?

About 23,513 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is I 10; EB over Drain Channel?

The structure is 82 ft (25 m) long with a longest span of 30 ft (9.1 m) and a deck 63 ft wide.

Who owns I 10; EB over Drain Channel?

It is owned by the State Highway Agency.