US Bridges

SR 87 over Wash

Fair

Pinal County, Arizona · 3.1 MI N JCT I 10 · Structure no. 04626

Built
1956
69 years old, rebuilt 1961
Condition
Fair
inspected October 2021
Type
Culvert
Concrete Continuous
Length
43 ft
4 main spans
Daily traffic
4,291
2020 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Wash is a concrete continuous culvert carrying SR 87 over Wash in Pinal County, Arizona. It was built in 1956 and reconstructed in 1961, so it is 69 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 4,291 vehicles a day, roughly 15% of them trucks, projected to reach 4,301 by 2040. The structure is 43 ft (13.1 m) long and 60 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesSR 87
CrossesWash
Location3.1 MI N JCT I 10
RouteState Highway 87
CountyPinal County
StateArizona
Coordinates32.7777, -111.5155
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,291 (2020)
Projected traffic4,301 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo
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 SR 87 over Wash built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1961.

What condition is SR 87 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 October 2021.

How much traffic does SR 87 over Wash carry?

About 4,291 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SR 87 over Wash?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns SR 87 over Wash?

It is owned by the State Highway Agency.