US Bridges

IRR BIA RTE N6 over Pueblo Colorado Wash

Fair

Navajo County, Arizona · 6MI South of Indian Wells · Structure no. 00000000000N670

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
212 ft
6 main spans
Daily traffic
1,271
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N6 over Pueblo Colorado Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR BIA RTE N6 over Pueblo Colorado Wash in Navajo County, Arizona. It was built in 1991, so it is 34 years old, younger 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 1,271 vehicles a day, roughly 10% of them trucks, projected to reach 1,487 by 2043. The structure is 212 ft (64.6 m) long and 31 ft wide. If it were closed, the detour would be 72.7 mi (117 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N6
CrossesPueblo Colorado Wash
Location6MI South of Indian Wells
RouteFederal Lands Road 0N6
CountyNavajo County
StateArizona
Coordinates35.3189, -110.06655
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span35 ft (10.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,271 (2023)
Projected traffic1,487 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.7 mi (117 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 N6 over Pueblo Colorado Wash built?

It was built in 1991, making it 34 years old in 2025.

What condition is IRR BIA RTE N6 over Pueblo Colorado 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 March 2023.

How much traffic does IRR BIA RTE N6 over Pueblo Colorado Wash carry?

About 1,271 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IRR BIA RTE N6 over Pueblo Colorado Wash?

The structure is 212 ft (64.6 m) long with a longest span of 35 ft (10.7 m) and a deck 31 ft wide.

Who owns IRR BIA RTE N6 over Pueblo Colorado Wash?

It is owned by the Bureau of Indian Affairs.