US Bridges

SR 87 over Wash

Good

Pinal County, Arizona · 2.1 MI North JCT I 10 · Structure no. 00355

Built
1951
74 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
144 ft
6 main spans
Daily traffic
3,947
2022 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Wash is a concrete continuous slab carrying SR 87 over Wash in Pinal County, Arizona. It was built in 1951, so it is 74 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 3,947 vehicles a day, roughly 16% of them trucks, projected to reach 3,957 by 2042. The structure is 144 ft (43.9 m) long and 35 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesSR 87
CrossesWash
Location2.1 MI North JCT I 10
RouteState Highway 87
CountyPinal County
StateArizona
Coordinates32.7624, -111.5158
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,947 (2022)
Projected traffic3,957 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 87 over Wash built?

It was built in 1951, making it 74 years old in 2025.

What condition is SR 87 over 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 January 2024.

How much traffic does SR 87 over Wash carry?

About 3,947 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is SR 87 over Wash?

The structure is 144 ft (43.9 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns SR 87 over Wash?

It is owned by the State Highway Agency.