US Bridges

NM-420 over Ute Creek

Fair

Harding County, New Mexico · 2.0 MI E of JCT NM-102 · Structure no. 000000000008367

Built
1981
44 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
338 ft
4 main spans
Daily traffic
41
2023 count
Owner
State
State Highway Agency

About this bridge

NM-420 over Ute Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-420 over Ute Creek in Harding County, New Mexico. It was built in 1981, so it is 44 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 41 vehicles a day, roughly 9% of them trucks, projected to reach 55 by 2043. The structure is 338 ft (103 m) long and 27 ft wide. If it were closed, the detour would be 90.1 mi (145 km).

CarriesNM-420
CrossesUte Creek
Location2.0 MI E of JCT NM-102
RouteState Highway 420
Coordinates35.83419, -103.64438
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length338 ft (103 m)
Longest span83 ft (25.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2023)
Projected traffic55 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-420 over Ute Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is NM-420 over Ute 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 2024.

How much traffic does NM-420 over Ute Creek carry?

About 41 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is NM-420 over Ute Creek?

The structure is 338 ft (103 m) long with a longest span of 83 ft (25.3 m) and a deck 27 ft wide.

Who owns NM-420 over Ute Creek?

It is owned by the State Highway Agency.