US Bridges

I 10; EB over Hassayampa River

Good

Maricopa County, Arizona · 11.3 MI West of JCT SR 85 · Structure no. 01646

Built
1974
51 years old, rebuilt 2010
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,180 ft
15 main spans
Daily traffic
16,617
2023 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over Hassayampa River is a prestressed concrete continuous stringer/multi-beam or girder carrying I 10; EB over Hassayampa River in Maricopa County, Arizona. It was built in 1974 and reconstructed in 2010, so it is 51 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 16,617 vehicles a day, roughly 32% of them trucks, projected to reach 16,627 by 2042. The structure is 1,180 ft (359.7 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
CrossesHassayampa River
Location11.3 MI West of JCT SR 85
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.45794, -112.76128
Functional classRural 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 protection7 GoodSome minor problems.
Last inspectionMay 2023
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 rating88 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,180 ft (359.7 m)
Longest span79 ft (24.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,617 (2023)
Projected traffic16,627 by 2042
Trucks32%
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 Hassayampa River built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2010.

What condition is I 10; EB over Hassayampa River 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 May 2023.

How much traffic does I 10; EB over Hassayampa River carry?

About 16,617 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is I 10; EB over Hassayampa River?

The structure is 1,180 ft (359.7 m) long with a longest span of 79 ft (24.1 m) and a deck 45 ft wide.

Who owns I 10; EB over Hassayampa River?

It is owned by the State Highway Agency.