US Bridges

US-180 over Mimbres River

Fair

Luna County, New Mexico · 6.6 MI S of NM-61 · Structure no. 000000000008152

Built
1980
45 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
346 ft
9 main spans
Daily traffic
3,511
2023 count
Owner
State
State Highway Agency

About this bridge

US-180 over Mimbres River is a concrete continuous slab carrying US-180 over Mimbres River in Luna County, New Mexico. It was built in 1980, so it is 45 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 3,511 vehicles a day, roughly 17% of them trucks, projected to reach 4,774 by 2043. The structure is 346 ft (105.6 m) long and 47 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS-180
CrossesMimbres River
Location6.6 MI S of NM-61
RouteU.S. Route 180
CountyLuna County
StateNew Mexico
Coordinates32.46593, -107.94676
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length346 ft (105.6 m)
Longest span40 ft (12.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,511 (2023)
Projected traffic4,774 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

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$1.2 million (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US-180 over Mimbres River built?

It was built in 1980, making it 45 years old in 2025.

What condition is US-180 over Mimbres River 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 January 2024.

How much traffic does US-180 over Mimbres River carry?

About 3,511 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US-180 over Mimbres River?

The structure is 346 ft (105.6 m) long with a longest span of 40 ft (12.2 m) and a deck 47 ft wide.

Who owns US-180 over Mimbres River?

It is owned by the State Highway Agency.