US Bridges

BIA Routh N46 over Chaco Wash

Good

McKinley County, New Mexico · 1M N of Pueblo Pintado · Structure no. 00000000000N402

Built
2010
15 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
165 ft
2 main spans
Daily traffic
815
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

BIA Routh N46 over Chaco Wash is a steel continuous stringer/multi-beam or girder carrying BIA Routh N46 over Chaco Wash in McKinley County, New Mexico. It was built in 2010, so it is 15 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 815 vehicles a day, projected to reach 815 by 2033. The structure is 165 ft (50.4 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBIA Routh N46
CrossesChaco Wash
Location1M N of Pueblo Pintado
RouteFederal Lands Road 0N46
CountyMcKinley County
StateNew Mexico
Coordinates35.97064, -107.64849
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment6: Equal to present minimum criteria
Operating rating63.4 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length165 ft (50.4 m)
Longest span76 ft (23.3 m)
Deck width46 ft (14.1 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic815 (2023)
Projected traffic815 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 BIA Routh N46 over Chaco Wash built?

It was built in 2010, making it 15 years old in 2025.

What condition is BIA Routh N46 over Chaco 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 BIA Routh N46 over Chaco Wash carry?

About 815 vehicles per day (2023 count).

How long is BIA Routh N46 over Chaco Wash?

The structure is 165 ft (50.4 m) long with a longest span of 76 ft (23.3 m) and a deck 46 ft wide.

Who owns BIA Routh N46 over Chaco Wash?

It is owned by the Bureau of Indian Affairs.