US Bridges

NM-118 over Unnamed Waterway

Good

McKinley County, New Mexico · 1.4 MI E of I-40/GALLUP · Structure no. 000000000005389

Built
1948
77 years old, rebuilt 1969
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
9,162
2023 count
Owner
State
State Highway Agency

About this bridge

NM-118 over Unnamed Waterway is a concrete culvert carrying NM-118 over Unnamed Waterway in McKinley County, New Mexico. It was built in 1948 and reconstructed in 1969, so it is 77 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 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 9,162 vehicles a day, roughly 12% of them trucks, projected to reach 12,460 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNM-118
CrossesUnnamed Waterway
Location1.4 MI E of I-40/GALLUP
RouteState Highway 118
Coordinates35.50982, -108.80685
Functional classUrban Other Principal Arterial

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 inspectionApril 2024
Inspection intervalevery 48 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 rating50 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic9,162 (2023)
Projected traffic12,460 by 2043
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$284,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-118 over Unnamed Waterway built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1969.

What condition is NM-118 over Unnamed Waterway 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 April 2024.

How much traffic does NM-118 over Unnamed Waterway carry?

About 9,162 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is NM-118 over Unnamed Waterway?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns NM-118 over Unnamed Waterway?

It is owned by the State Highway Agency.