SR 84 over Wash

Fair

Pinal County, Arizona · 8.8 MI E JCT I-8 · Structure no. 04546

Built: 1946; 79 years old, rebuilt 2004
Condition: Fair; inspected February 2022
Type: Culvert; Concrete Continuous
Length: 21 ft; 2 main spans
Daily traffic: 2,902; 2021 count
Owner: State; State Highway Agency

About this bridge

SR 84 over Wash is a concrete continuous culvert carrying SR 84 over Wash in Pinal County, Arizona. It was built in 1946 and reconstructed in 2004, so it is 79 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 2,902 vehicles a day, roughly 11% of them trucks, projected to reach 2,912 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR 84

CrossesWash

Location8.8 MI E JCT I-8

RouteState Highway 84

CountyPinal County

StateArizona

Coordinates32.8793, -111.9975

Functional classRural Minor Arterial

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
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionFebruary 2022

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating58 US tons

Inventory rating36 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans2

Design loadHS 20

Structure length21 ft (6.4 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,902 (2021)

Projected traffic2,912 by 2041

Trucks11%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed9.9 mi (16 km)

TollOn a free road

National Highway SystemNo

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 SR 84 over Wash built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 2004.

What condition is SR 84 over 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 2022.

How much traffic does SR 84 over Wash carry?

About 2,902 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is SR 84 over Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SR 84 over Wash?

It is owned by the State Highway Agency.