US Bridges

NM-402 over Entrania Creek

Fair

Union County, New Mexico · 6.7 MI N of Quay/Union Cl · Structure no. 000000000007638

Built
1976
49 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
92 ft
4 main spans
Daily traffic
251
2023 count
Owner
State
State Highway Agency

About this bridge

NM-402 over Entrania Creek is a concrete continuous slab carrying NM-402 over Entrania Creek in Union County, New Mexico. It was built in 1976, so it is 49 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 251 vehicles a day, roughly 11% of them trucks, projected to reach 341 by 2043. The structure is 92 ft (28 m) long and 37 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNM-402
CrossesEntrania Creek
Location6.7 MI N of Quay/Union Cl
RouteState Highway 402
Coordinates35.80386, -103.16111
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating55.8 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length92 ft (28 m)
Longest span25 ft (7.6 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic251 (2023)
Projected traffic341 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-402 over Entrania Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is NM-402 over Entrania Creek 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 February 2025.

How much traffic does NM-402 over Entrania Creek carry?

About 251 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-402 over Entrania Creek?

The structure is 92 ft (28 m) long with a longest span of 25 ft (7.6 m) and a deck 37 ft wide.

Who owns NM-402 over Entrania Creek?

It is owned by the State Highway Agency.