US Bridges

NM-264 over Black Ridge Wash

Good

McKinley County, New Mexico · 0.2 MI W of US-491 · Structure no. 000000000008703

Built
1986
39 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
11,051
2023 count
Owner
State
State Highway Agency

About this bridge

NM-264 over Black Ridge Wash is a concrete culvert carrying NM-264 over Black Ridge Wash in McKinley County, New Mexico. It was built in 1986, so it is 39 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 11,051 vehicles a day, roughly 17% of them trucks, projected to reach 15,029 by 2043. The structure is 24 ft (7.2 m) long.

CarriesNM-264
CrossesBlack Ridge Wash
Location0.2 MI W of US-491
RouteState Highway 264
Coordinates35.62889, -108.78366
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,051 (2023)
Projected traffic15,029 by 2043
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 NM-264 over Black Ridge Wash built?

It was built in 1986, making it 39 years old in 2025.

What condition is NM-264 over Black Ridge 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 January 2025.

How much traffic does NM-264 over Black Ridge Wash carry?

About 11,051 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is NM-264 over Black Ridge Wash?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (3 m).

Who owns NM-264 over Black Ridge Wash?

It is owned by the State Highway Agency.