US Bridges

NM-48 over Unnamed Waterway

Good

Lincoln County, New Mexico · 4.7 MI N JCT US70/RUIDOSO · Structure no. 000000000006311

Built
1961
64 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
7,527
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 1961, so it is 64 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 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 7,527 vehicles a day, roughly 3% of them trucks, projected to reach 10,236 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNM-48
CrossesUnnamed Waterway
Location4.7 MI N JCT US70/RUIDOSO
RouteState Highway 48
Coordinates33.35101, -105.67484
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length22 ft (6.7 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 traffic7,527 (2023)
Projected traffic10,236 by 2043
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$94,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-48 over Unnamed Waterway built?

It was built in 1961, making it 64 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 7,527 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is NM-48 over Unnamed Waterway?

The structure is 22 ft (6.7 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.