US Bridges

IRR BIA RTE N475 over Torreon Wash

Good

McKinley County, New Mexico · 1.4MI E Ojo Encino School · Structure no. 00000000000N485

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
341
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N475 over Torreon Wash is a steel stringer/multi-beam or girder carrying IRR BIA RTE N475 over Torreon Wash in McKinley County, New Mexico. It was built in 1988, so it is 37 years old, younger than the New Mexico average of 51.5 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 341 vehicles a day, roughly 5% of them trucks, projected to reach 399 by 2043. The structure is 80 ft (24.4 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesIRR BIA RTE N475
CrossesTorreon Wash
Location1.4MI E Ojo Encino School
RouteFederal Lands Road 0N474
Coordinates35.95758, -107.32333
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating39.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length80 ft (24.4 m)
Longest span78 ft (23.7 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic341 (2023)
Projected traffic399 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 N475 over Torreon Wash built?

It was built in 1988, making it 37 years old in 2025.

What condition is IRR BIA RTE N475 over Torreon 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 March 2023.

How much traffic does IRR BIA RTE N475 over Torreon Wash carry?

About 341 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N475 over Torreon Wash?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.7 m) and a deck 30 ft wide.

Who owns IRR BIA RTE N475 over Torreon Wash?

It is owned by the Bureau of Indian Affairs.