US Bridges

US-64/87 over Unnamed Waterway

Fair

Union County, New Mexico · 4.1 M E NM-325/DES Moines · Structure no. 000000000002356

Built
1930
95 years old, rebuilt 1979
Condition
Fair
inspected September 2021
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
4,134
2023 count
Owner
State
State Highway Agency

About this bridge

US-64/87 over Unnamed Waterway is a concrete culvert carrying US-64/87 over Unnamed Waterway in Union County, New Mexico. It was built in 1930 and reconstructed in 1979, so it is 95 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 4,134 vehicles a day, roughly 17% of them trucks, projected to reach 5,622 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS-64/87
CrossesUnnamed Waterway
Location4.1 M E NM-325/DES Moines
RouteU.S. Route 64
CountyUnion County
StateNew Mexico
Coordinates36.72371, -103.80287
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length32 ft (9.8 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 traffic4,134 (2023)
Projected traffic5,622 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$258,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-64/87 over Unnamed Waterway built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1979.

What condition is US-64/87 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 September 2021.

How much traffic does US-64/87 over Unnamed Waterway carry?

About 4,134 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US-64/87 over Unnamed Waterway?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns US-64/87 over Unnamed Waterway?

It is owned by the State Highway Agency.