US Bridges

US-64/87 EB over Unnamed Waterway

Good

Union County, New Mexico · 13.8 MI E of NM-325 · Structure no. 000000000005742

Built
1956
69 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
153 ft
5 main spans
Daily traffic
4,134
2023 count
Owner
State
State Highway Agency

About this bridge

US-64/87 EB over Unnamed Waterway is a concrete continuous slab carrying US-64/87 EB over Unnamed Waterway in Union County, New Mexico. It was built in 1956, so it is 69 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 4,134 vehicles a day, roughly 17% of them trucks, projected to reach 5,622 by 2043. The structure is 153 ft (46.6 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS-64/87 EB
CrossesUnnamed Waterway
Location13.8 MI E of NM-325
RouteU.S. Route 64
CountyUnion County
StateNew Mexico
Coordinates36.61509, -103.68589
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span33 ft (10.1 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,134 (2023)
Projected traffic5,622 by 2043
Trucks17%
Lanes on structure2
Traffic directionOne-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$359,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1956, making it 69 years old in 2025.

What condition is US-64/87 EB 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 April 2024.

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

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

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

The structure is 153 ft (46.6 m) long with a longest span of 33 ft (10.1 m) and a deck 32 ft wide.

Who owns US-64/87 EB over Unnamed Waterway?

It is owned by the State Highway Agency.