I-8 EB over Sauceda Wash

Fair

Maricopa County, Arizona · 2.4 MI W JCT SR 85 · Structure no. 00442

Built: 1955; 70 years old, rebuilt 1971
Condition: Fair; inspected February 2023
Type: Slab; Concrete Continuous
Length: 90 ft; 4 main spans
Daily traffic: 6,223; 2021 count
Owner: State; State Highway Agency

About this bridge

I-8 EB over Sauceda Wash is a concrete continuous slab carrying I-8 EB over Sauceda Wash in Maricopa County, Arizona. It was built in 1955 and reconstructed in 1971, so it is 70 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 6,223 vehicles a day, roughly 28% of them trucks, projected to reach 6,233 by 2041. The structure is 90 ft (27.4 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-8 EB

CrossesSauceda Wash

Location2.4 MI W JCT SR 85

RouteInterstate 8

CountyMaricopa County

StateArizona

Coordinates32.9366, -112.7731

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 inspectionFebruary 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating41 US tons

Inventory rating25 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans4

Design loadHS 20

Structure length90 ft (27.4 m)

Longest span25 ft (7.6 m)

Deck width45 ft (13.7 m)

Roadway width40 ft (12.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,223 (2021)

Projected traffic6,233 by 2041

Trucks28%

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-8 EB over Sauceda Wash built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1971.

What condition is I-8 EB over Sauceda Wash 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 February 2023.

How much traffic does I-8 EB over Sauceda Wash carry?

About 6,223 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I-8 EB over Sauceda Wash?

The structure is 90 ft (27.4 m) long with a longest span of 25 ft (7.6 m) and a deck 45 ft wide.

Who owns I-8 EB over Sauceda Wash?

It is owned by the State Highway Agency.