US Bridges

IRR BIA RTE 6 over Wash

Fair

Gila County, Arizona · 3.5 KM East of Cutter · Structure no. 0000H58616B0824

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
2,000
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 6 over Wash is a concrete culvert carrying IRR BIA RTE 6 over Wash in Gila County, Arizona. It was built in 1970, so it is 55 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 2,000 vehicles a day, roughly 5% of them trucks, projected to reach 2,500 by 2044. The structure is 42 ft (12.9 m) long and 41 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

CarriesIRR BIA RTE 6
CrossesWash
Location3.5 KM East of Cutter
RouteFederal Lands Road 6
StateArizona
Coordinates33.36375, -110.61389
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length42 ft (12.9 m)
Longest span10 ft (3.1 m)
Deck width41 ft (12.4 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2024)
Projected traffic2,500 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 BIA RTE 6 over Wash built?

It was built in 1970, making it 55 years old in 2025.

What condition is IRR BIA RTE 6 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 February 2024.

How much traffic does IRR BIA RTE 6 over Wash carry?

About 2,000 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 6 over Wash?

The structure is 42 ft (12.9 m) long with a longest span of 10 ft (3.1 m) and a deck 41 ft wide.

Who owns IRR BIA RTE 6 over Wash?

It is owned by the Bureau of Indian Affairs.