US Bridges

IRR BIA RTE 9 over Wash

Fair

Rio Arriba County, New Mexico · 8.5 KM NW of Dulce Nm · Structure no. 00000000000M311

Built
1925
100 years old, rebuilt 1975
Condition
Fair
inspected October 2024
Type
Girder and Floorbeam System
Steel
Length
32 ft
1 main span
Daily traffic
20
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 9 over Wash is a steel girder and floorbeam system carrying IRR BIA RTE 9 over Wash in Rio Arriba County, New Mexico. It was built in 1925 and reconstructed in 1975, so it is 100 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 20 vehicles a day, roughly 5% of them trucks, projected to reach 30 by 2044. The structure is 32 ft (9.8 m) long and 14 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesIRR BIA RTE 9
CrossesWash
Location8.5 KM NW of Dulce Nm
RouteFederal Lands Road 9
Coordinates36.9715, -107.08953
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.8 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic30 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost$600,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR BIA RTE 9 over Wash built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1975.

What condition is IRR BIA RTE 9 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 October 2024.

How much traffic does IRR BIA RTE 9 over Wash carry?

About 20 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is IRR BIA RTE 9 over Wash?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 14 ft wide.

Who owns IRR BIA RTE 9 over Wash?

It is owned by the Bureau of Indian Affairs.