US Bridges

NM-68 SB over Rio De Truchas

Fair

Rio Arriba County, New Mexico · 12.380 N JCT US 84/285 · Structure no. 000000000008550

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
105 ft
3 main spans
Daily traffic
5,837
2023 count
Owner
State
State Highway Agency

About this bridge

NM-68 SB over Rio De Truchas is a concrete continuous slab carrying NM-68 SB over Rio De Truchas in Rio Arriba 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 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 5,837 vehicles a day, roughly 17% of them trucks, projected to reach 7,938 by 2043. The structure is 105 ft (32 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesNM-68 SB
CrossesRio De Truchas
Location12.380 N JCT US 84/285
RouteState Highway 68
Coordinates36.14567, -105.98261
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.3 US tons
Inventory rating33.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,837 (2023)
Projected traffic7,938 by 2043
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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-68 SB over Rio De Truchas built?

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

What condition is NM-68 SB over Rio De Truchas 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 July 2023.

How much traffic does NM-68 SB over Rio De Truchas carry?

About 5,837 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is NM-68 SB over Rio De Truchas?

The structure is 105 ft (32 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns NM-68 SB over Rio De Truchas?

It is owned by the State Highway Agency.