I-8 WB over Sauceda Wash

Fair

Maricopa County, Arizona · 2.4 MI W JCT SR 85 · Structure no. 01554

Built: 1971; 54 years old
Condition: Fair; inspected February 2023
Type: Slab; Concrete Continuous
Length: 111 ft; 4 main spans
Daily traffic: 5,913; 2021 count
Owner: State; State Highway Agency

About this bridge

I-8 WB over Sauceda Wash is a concrete continuous slab carrying I-8 WB over Sauceda 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 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 5,913 vehicles a day, roughly 28% of them trucks, projected to reach 5,923 by 2041. The structure is 111 ft (33.8 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-8 WB

CrossesSauceda Wash

Location2.4 MI W JCT SR 85

RouteInterstate 8

CountyMaricopa County

StateArizona

Coordinates32.937, -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	6 Satisfactory	Structural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating67 US tons

Inventory rating40 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans4

Design loadHS 20

Structure length111 ft (33.8 m)

Longest span30 ft (9.1 m)

Deck width41 ft (12.4 m)

Roadway width38 ft (11.6 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,913 (2021)

Projected traffic5,923 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 WB over Sauceda Wash built?

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

What condition is I-8 WB 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 WB over Sauceda Wash carry?

About 5,913 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I-8 WB over Sauceda Wash?

The structure is 111 ft (33.8 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns I-8 WB over Sauceda Wash?

It is owned by the State Highway Agency.