US Bridges

US-285 Nbl/Sbl over Unnamed Waterway

Fair

Eddy County, New Mexico · 2.5 M N US-62/180/CARLSBD · Structure no. 000000000003484

Built
1949
76 years old, rebuilt 1978
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
15,888
2023 count
Owner
State
State Highway Agency

About this bridge

US-285 Nbl/Sbl over Unnamed Waterway is a steel stringer/multi-beam or girder carrying US-285 Nbl/Sbl over Unnamed Waterway in Eddy County, New Mexico. It was built in 1949 and reconstructed in 1978, so it is 76 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 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 15,888 vehicles a day, roughly 4% of them trucks, projected to reach 21,607 by 2043. The structure is 62 ft (18.9 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS-285 Nbl/Sbl
CrossesUnnamed Waterway
Location2.5 M N US-62/180/CARLSBD
RouteU.S. Route 285
CountyEddy County
StateNew Mexico
Coordinates32.43751, -104.25117
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width74 ft (22.6 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,888 (2023)
Projected traffic21,607 by 2043
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$337,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-285 Nbl/Sbl over Unnamed Waterway built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1978.

What condition is US-285 Nbl/Sbl over Unnamed Waterway 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 January 2025.

How much traffic does US-285 Nbl/Sbl over Unnamed Waterway carry?

About 15,888 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US-285 Nbl/Sbl over Unnamed Waterway?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 74 ft wide.

Who owns US-285 Nbl/Sbl over Unnamed Waterway?

It is owned by the State Highway Agency.