US Bridges

US-87 over Unnamed Waterway

Good

Union County, New Mexico · 0.6 MI W of Texas ST Line · Structure no. 000000000006324

Built
1961
64 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
6,226
2023 count
Owner
State
State Highway Agency

About this bridge

US-87 over Unnamed Waterway is a concrete culvert carrying US-87 over Unnamed Waterway in Union 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 6,226 vehicles a day, roughly 11% of them trucks, projected to reach 8,467 by 2043. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 55.9 mi (90 km).

CarriesUS-87
CrossesUnnamed Waterway
Location0.6 MI W of Texas ST Line
RouteU.S. Route 87
Coordinates36.39343, -103.05049
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable 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 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 traffic6,226 (2023)
Projected traffic8,467 by 2043
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-87 over Unnamed Waterway built?

It was built in 1961, making it 64 years old in 2025.

What condition is US-87 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 February 2023.

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

About 6,226 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US-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-87 over Unnamed Waterway?

It is owned by the State Highway Agency.