US Bridges

IRR SR 286 over Wash

Good

Pima County, Arizona · 9.6 MI S JCT SR 86 · Structure no. 06122

Built
1955
70 years old
Condition
Good
inspected February 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
363
2021 count
Owner
State
State Highway Agency

About this bridge

IRR SR 286 over Wash is a concrete continuous culvert carrying IRR SR 286 over Wash in Pima County, Arizona. It was built in 1955, so it is 70 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 363 vehicles a day, roughly 11% of them trucks, projected to reach 373 by 2041. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesIRR SR 286
CrossesWash
Location9.6 MI S JCT SR 86
RouteState Highway 286
CountyPima County
StateArizona
Coordinates31.9576, -111.3879
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum 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 width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic363 (2021)
Projected traffic373 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 IRR SR 286 over Wash built?

It was built in 1955, making it 70 years old in 2025.

What condition is IRR SR 286 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 February 2022.

How much traffic does IRR SR 286 over Wash carry?

About 363 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is IRR SR 286 over Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns IRR SR 286 over Wash?

It is owned by the State Highway Agency.