US Bridges

IRR SR 387 over Wash

Good

Pinal County, Arizona · 4.2 MI N JCT SR 84 · Structure no. 06507

Built
1973
52 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
26,362
2021 count
Owner
State
State Highway Agency

About this bridge

IRR SR 387 over Wash is a concrete continuous culvert carrying IRR SR 387 over Wash in Pinal County, Arizona. It was built in 1973, so it is 52 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 26,362 vehicles a day, roughly 9% of them trucks, projected to reach 26,372 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesIRR SR 387
CrossesWash
Location4.2 MI N JCT SR 84
RouteState Highway 387
CountyPinal County
StateArizona
Coordinates32.9418, -111.7567
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating86 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 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 traffic26,362 (2021)
Projected traffic26,372 by 2041
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$2,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR SR 387 over Wash built?

It was built in 1973, making it 52 years old in 2025.

What condition is IRR SR 387 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 December 2022.

How much traffic does IRR SR 387 over Wash carry?

About 26,362 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is IRR SR 387 over Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns IRR SR 387 over Wash?

It is owned by the State Highway Agency.