US Bridges

IRR BIA RTE N9 over Ditch Drainage

Good

McKinley County, New Mexico · .75MI E Coyote Canyon Com · Structure no. 00000000000N689

Built
2002
23 years old
Condition
Good
inspected March 2023
Type
Culvert
Steel
Length
41 ft
4 main spans
Daily traffic
10
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE N9 over Ditch Drainage is a steel culvert carrying IRR BIA RTE N9 over Ditch Drainage in McKinley County, New Mexico. It was built in 2002, so it is 23 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 10 vehicles a day, roughly 5% of them trucks, projected to reach 12 by 2040. The structure is 41 ft (12.5 m) long and 53 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesIRR BIA RTE N9
CrossesDitch Drainage
Location.75MI E Coyote Canyon Com
RouteFederal Lands Road 0N9
Coordinates35.77361, -108.62256
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length41 ft (12.5 m)
Longest span8 ft (2.4 m)
Deck width53 ft (16.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic12 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 N9 over Ditch Drainage built?

It was built in 2002, making it 23 years old in 2025.

What condition is IRR BIA RTE N9 over Ditch Drainage 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 N9 over Ditch Drainage carry?

About 10 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA RTE N9 over Ditch Drainage?

The structure is 41 ft (12.5 m) long with a longest span of 8 ft (2.4 m) and a deck 53 ft wide.

Who owns IRR BIA RTE N9 over Ditch Drainage?

It is owned by the Bureau of Indian Affairs.