US Bridges

IRR BIA RTE N3003 over Drainage Ditch

Fair

San Juan County, New Mexico · 8.1MI S 6 MI E Farmington · Structure no. 00000000000N804

Built
1975
50 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
2,945
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N3003 over Drainage Ditch is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N3003 over Drainage Ditch in San Juan County, New Mexico. It was built in 1975, so it is 50 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 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 2,945 vehicles a day, roughly 30% of them trucks, projected to reach 3,446 by 2043. The structure is 82 ft (24.9 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesIRR BIA RTE N3003
CrossesDrainage Ditch
Location8.1MI S 6 MI E Farmington
RouteFederal Lands Road 3003
Coordinates36.60833, -108.08753
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (24.9 m)
Longest span78 ft (23.8 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,945 (2023)
Projected traffic3,446 by 2043
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 N3003 over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is IRR BIA RTE N3003 over Drainage Ditch 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 N3003 over Drainage Ditch carry?

About 2,945 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is IRR BIA RTE N3003 over Drainage Ditch?

The structure is 82 ft (24.9 m) long with a longest span of 78 ft (23.8 m) and a deck 37 ft wide.

Who owns IRR BIA RTE N3003 over Drainage Ditch?

It is owned by the Bureau of Indian Affairs.