US Bridges

NM-48 over Unnamed Waterway

Fair

Lincoln County, New Mexico · 8.6 M.N. JCT NM48&US70 · Structure no. 000000000009079

Built
2001
24 years old
Condition
Fair
inspected October 2021
Type
Culvert
Concrete
Length
102 ft
7 main spans
Daily traffic
8,466
2023 count
Owner
State
State Highway Agency

About this bridge

NM-48 over Unnamed Waterway is a concrete culvert carrying NM-48 over Unnamed Waterway in Lincoln County, New Mexico. It was built in 2001, so it is 24 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 8,466 vehicles a day, roughly 17% of them trucks, projected to reach 11,513 by 2043. The structure is 102 ft (31.1 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNM-48
CrossesUnnamed Waterway
Location8.6 M.N. JCT NM48&US70
RouteState Highway 48
Coordinates33.39688, -105.67909
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2021
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadHS 20
Structure length102 ft (31.1 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 traffic8,466 (2023)
Projected traffic11,513 by 2043
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-48 over Unnamed Waterway built?

It was built in 2001, making it 24 years old in 2025.

What condition is NM-48 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 2021.

How much traffic does NM-48 over Unnamed Waterway carry?

About 8,466 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is NM-48 over Unnamed Waterway?

The structure is 102 ft (31.1 m) long with a longest span of 10 ft (3 m).

Who owns NM-48 over Unnamed Waterway?

It is owned by the State Highway Agency.