US Bridges

I 10; WB over Coyote Wash

Good

Maricopa County, Arizona · 16.22 MI West of JCT SR 8 · Structure no. 01527

Built
1971
54 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
13,687
2023 count
Owner
State
State Highway Agency

About this bridge

I 10; WB over Coyote Wash is a concrete continuous slab carrying I 10; WB over Coyote Wash in Maricopa County, Arizona. It was built in 1971, so it is 54 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 13,687 vehicles a day, roughly 26% of them trucks, projected to reach 13,697 by 2042. The structure is 107 ft (32.6 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; WB
CrossesCoyote Wash
Location16.22 MI West of JCT SR 8
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.48866, -112.89723
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,687 (2023)
Projected traffic13,697 by 2042
Trucks26%
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; WB over Coyote Wash built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 10; WB over Coyote Wash 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; WB over Coyote Wash carry?

About 13,687 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I 10; WB over Coyote Wash?

The structure is 107 ft (32.6 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns I 10; WB over Coyote Wash?

It is owned by the State Highway Agency.