US Bridges

NM-118 over Rio Puerco

Good

McKinley County, New Mexico · 1.15 MI NW of I-40/EXT-36 · Structure no. 000000000010037

Built
1992
33 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
84 ft
4 main spans
Daily traffic
1,495
2023 count
Owner
State
State Highway Agency

About this bridge

NM-118 over Rio Puerco is a steel culvert carrying NM-118 over Rio Puerco in McKinley County, New Mexico. It was built in 1992, so it is 33 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 1,495 vehicles a day, roughly 11% of them trucks, projected to reach 2,033 by 2043. The structure is 84 ft (25.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNM-118
CrossesRio Puerco
Location1.15 MI NW of I-40/EXT-36
RouteState Highway 118
Coordinates35.49986, -108.50437
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,495 (2023)
Projected traffic2,033 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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-118 over Rio Puerco built?

It was built in 1992, making it 33 years old in 2025.

What condition is NM-118 over Rio Puerco 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 May 2024.

How much traffic does NM-118 over Rio Puerco carry?

About 1,495 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-118 over Rio Puerco?

The structure is 84 ft (25.6 m) long with a longest span of 17 ft (5.2 m).

Who owns NM-118 over Rio Puerco?

It is owned by the State Highway Agency.