US Bridges

NM-118 over Caltalpa Canyon

Fair

McKinley County, New Mexico · .1 M W Boardman Rd/Gallup · Structure no. 000000000003081

Built
1931
94 years old, rebuilt 1958
Condition
Fair
inspected November 2021
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
19,999
2023 count
Owner
State
State Highway Agency

About this bridge

NM-118 over Caltalpa Canyon is a concrete culvert carrying NM-118 over Caltalpa Canyon in McKinley County, New Mexico. It was built in 1931 and reconstructed in 1958, so it is 94 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 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 19,999 vehicles a day, roughly 13% of them trucks, projected to reach 27,198 by 2043. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNM-118
CrossesCaltalpa Canyon
Location.1 M W Boardman Rd/Gallup
RouteState Highway 118
Coordinates35.5294, -108.7119
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 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 traffic19,999 (2023)
Projected traffic27,198 by 2043
Trucks13%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-118 over Caltalpa Canyon built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1958.

What condition is NM-118 over Caltalpa Canyon 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 November 2021.

How much traffic does NM-118 over Caltalpa Canyon carry?

About 19,999 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-118 over Caltalpa Canyon?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns NM-118 over Caltalpa Canyon?

It is owned by the State Highway Agency.