US Bridges

NM-392 over Frost Creek

Fair

Quay County, New Mexico · 7.2 MI E of JCT NM-469 · Structure no. 000000000005517

Built
1952
73 years old
Condition
Fair
inspected November 2023
Type
Slab
Wood or Timber
Length
63 ft
3 main spans
Daily traffic
189
2023 count
Owner
State
State Highway Agency

About this bridge

NM-392 over Frost Creek is a wood or timber slab carrying NM-392 over Frost Creek in Quay County, New Mexico. It was built in 1952, so it is 73 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 5 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 189 vehicles a day, roughly 11% of them trucks, projected to reach 257 by 2043. The structure is 63 ft (19.2 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNM-392
CrossesFrost Creek
Location7.2 MI E of JCT NM-469
RouteState Highway 392
CountyQuay County
StateNew Mexico
Coordinates35.21556, -103.20501
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length63 ft (19.2 m)
Longest span22 ft (6.7 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic189 (2023)
Projected traffic257 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$102,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-392 over Frost Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is NM-392 over Frost 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 November 2023.

How much traffic does NM-392 over Frost Creek carry?

About 189 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-392 over Frost Creek?

The structure is 63 ft (19.2 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.

Who owns NM-392 over Frost Creek?

It is owned by the State Highway Agency.