US Bridges

IRR BIA RTE N12 over Coyote Wash

Fair

San Juan County, New Mexico · 4MI NO.INTERSEC.N12 & N32 · Structure no. 00000000000N614

Built
1965
60 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
2 main spans
Daily traffic
1,547
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N12 over Coyote Wash is a steel stringer/multi-beam or girder carrying IRR BIA RTE N12 over Coyote Wash in San Juan County, New Mexico. It was built in 1965, so it is 60 years old, older than the New Mexico average of 51.5 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 1,547 vehicles a day, roughly 5% of them trucks, projected to reach 1,810 by 2040. The structure is 85 ft (25.9 m) long and 32 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesIRR BIA RTE N12
CrossesCoyote Wash
Location4MI NO.INTERSEC.N12 & N32
RouteFederal Lands Road 0N12
CountySan Juan County
StateNew Mexico
Coordinates36.04928, -109.04442
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span41 ft (12.4 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,547 (2023)
Projected traffic1,810 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 N12 over Coyote Wash built?

It was built in 1965, making it 60 years old in 2025.

What condition is IRR BIA RTE N12 over Coyote 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 N12 over Coyote Wash carry?

About 1,547 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N12 over Coyote Wash?

The structure is 85 ft (25.9 m) long with a longest span of 41 ft (12.4 m) and a deck 32 ft wide.

Who owns IRR BIA RTE N12 over Coyote Wash?

It is owned by the Bureau of Indian Affairs.