US Bridges

NM-37 over Unnamed Waterway

Fair

Lincoln County, New Mexico · 9.7 MI N of NM-48 @ Angus · Structure no. 000000000007077

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
56 ft
3 main spans
Daily traffic
1,832
2023 count
Owner
State
State Highway Agency

About this bridge

NM-37 over Unnamed Waterway is a concrete culvert carrying NM-37 over Unnamed Waterway in Lincoln County, New Mexico. It was built in 1969, so it is 56 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 1,832 vehicles a day, roughly 11% of them trucks, projected to reach 2,491 by 2043. The structure is 56 ft (17.1 m) long. If it were closed, the detour would be 67.1 mi (108 km).

CarriesNM-37
CrossesUnnamed Waterway
Location9.7 MI N of NM-48 @ Angus
RouteState Highway 37
Coordinates33.55162, -105.70647
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length56 ft (17.1 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 traffic1,832 (2023)
Projected traffic2,491 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.1 mi (108 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-37 over Unnamed Waterway built?

It was built in 1969, making it 56 years old in 2025.

What condition is NM-37 over Unnamed Waterway 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 October 2023.

How much traffic does NM-37 over Unnamed Waterway carry?

About 1,832 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-37 over Unnamed Waterway?

The structure is 56 ft (17.1 m) long with a longest span of 12 ft (3.7 m).

Who owns NM-37 over Unnamed Waterway?

It is owned by the State Highway Agency.