US Bridges

NM-76 over Las Trampas River

Good

Taos County, New Mexico · 5.8 MI S of JCT NM-75 · Structure no. 000000000006925

Built
1967
58 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
52 ft
2 main spans
Daily traffic
1,074
2023 count
Owner
State
State Highway Agency

About this bridge

NM-76 over Las Trampas River is a wood or timber stringer/multi-beam or girder carrying NM-76 over Las Trampas River in Taos County, New Mexico. It was built in 1967, so it is 58 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 1,074 vehicles a day, roughly 11% of them trucks, projected to reach 1,460 by 2043. The structure is 52 ft (15.7 m) long and 37 ft wide. If it were closed, the detour would be 46 mi (74 km).

CarriesNM-76
CrossesLas Trampas River
Location5.8 MI S of JCT NM-75
RouteState Highway 76
Coordinates36.13082, -105.75993
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.9 US tons
Inventory rating30.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 15
Structure length52 ft (15.7 m)
Longest span25 ft (7.6 m)
Deck width37 ft (11.2 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,074 (2023)
Projected traffic1,460 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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-76 over Las Trampas River built?

It was built in 1967, making it 58 years old in 2025.

What condition is NM-76 over Las Trampas River 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 August 2023.

How much traffic does NM-76 over Las Trampas River carry?

About 1,074 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-76 over Las Trampas River?

The structure is 52 ft (15.7 m) long with a longest span of 25 ft (7.6 m) and a deck 37 ft wide.

Who owns NM-76 over Las Trampas River?

It is owned by the State Highway Agency.