US Bridges

NM-48 over Unnamed Waterway

Good

Lincoln County, New Mexico · 6.5 M.N. JCT NM48&US70 · Structure no. 000000000009078

Built
2000
25 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
9,038
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 2000, so it is 25 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 9,038 vehicles a day, roughly 17% of them trucks, projected to reach 12,291 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNM-48
CrossesUnnamed Waterway
Location6.5 M.N. JCT NM48&US70
RouteState Highway 48
Coordinates33.37289, -105.67039
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span7 ft (2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,038 (2023)
Projected traffic12,291 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-48 over Unnamed Waterway built?

It was built in 2000, making it 25 years old in 2025.

What condition is NM-48 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 October 2021.

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

About 9,038 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is NM-48 over Unnamed Waterway?

The structure is 40 ft (12.2 m) long with a longest span of 7 ft (2 m).

Who owns NM-48 over Unnamed Waterway?

It is owned by the State Highway Agency.