US Bridges

NM-111 over Unnamed Waterway

Good

Rio Arriba County, New Mexico · 0.6 MI S of JCT NM-554 · Structure no. 000000000008720

Built
1988
37 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
41 ft
3 main spans
Daily traffic
661
2023 count
Owner
State
State Highway Agency

About this bridge

NM-111 over Unnamed Waterway is a concrete culvert carrying NM-111 over Unnamed Waterway in Rio Arriba County, New Mexico. It was built in 1988, so it is 37 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 661 vehicles a day, roughly 11% of them trucks, projected to reach 898 by 2043. The structure is 41 ft (12.6 m) long. If it were closed, the detour would be 60.3 mi (97 km).

CarriesNM-111
CrossesUnnamed Waterway
Location0.6 MI S of JCT NM-554
RouteState Highway 111
Coordinates36.35135, -106.04766
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic661 (2023)
Projected traffic898 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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-111 over Unnamed Waterway built?

It was built in 1988, making it 37 years old in 2025.

What condition is NM-111 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 July 2024.

How much traffic does NM-111 over Unnamed Waterway carry?

About 661 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-111 over Unnamed Waterway?

The structure is 41 ft (12.6 m) long with a longest span of 12 ft (3.7 m).

Who owns NM-111 over Unnamed Waterway?

It is owned by the State Highway Agency.