US Bridges

IRR SR 87 over Wash

Good

Pinal County, Arizona · 0.1 MI SE JCT SR 187 · Structure no. 04631

Built
1959
66 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
6,620
2020 count
Owner
State
State Highway Agency

About this bridge

IRR SR 87 over Wash is a concrete continuous culvert carrying IRR SR 87 over Wash in Pinal County, Arizona. It was built in 1959, so it is 66 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,620 vehicles a day, roughly 10% of them trucks, projected to reach 6,630 by 2040. The structure is 45 ft (13.7 m) long and 86 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesIRR SR 87
CrossesWash
Location0.1 MI SE JCT SR 187
RouteState Highway 87
CountyPinal County
StateArizona
Coordinates33.0599, -111.687
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span14 ft (4.3 m)
Deck width86 ft (26.3 m)
Roadway width85 ft (25.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,620 (2020)
Projected traffic6,630 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

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 IRR SR 87 over Wash built?

It was built in 1959, making it 66 years old in 2025.

What condition is IRR 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 October 2021.

How much traffic does IRR SR 87 over Wash carry?

About 6,620 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is IRR SR 87 over Wash?

The structure is 45 ft (13.7 m) long with a longest span of 14 ft (4.3 m) and a deck 86 ft wide.

Who owns IRR SR 87 over Wash?

It is owned by the State Highway Agency.