US Bridges

US 285 over Unnamed Waterway

Fair

Chaves County, New Mexico · 0.5M S Roswell Relief RTE · Structure no. 000000000009795

Built
1988
37 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
28 ft
4 main spans
Daily traffic
13,899
2021 count
Owner
State
State Highway Agency

About this bridge

US 285 over Unnamed Waterway is a concrete culvert carrying US 285 over Unnamed Waterway in Chaves County, New Mexico. It was built in 1988, so it is 37 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 13,899 vehicles a day, roughly 24% of them trucks, projected to reach 18,902 by 2041. The structure is 28 ft (8.5 m) long and 39 ft wide.

CarriesUS 285
CrossesUnnamed Waterway
Location0.5M S Roswell Relief RTE
RouteU.S. Route 4685
Coordinates33.32475, -104.50281
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.1 US tons
Inventory rating56.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span6 ft (1.8 m)
Deck width39 ft (11.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,899 (2021)
Projected traffic18,902 by 2041
Trucks24%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 285 over Unnamed Waterway built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 285 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 November 2024.

How much traffic does US 285 over Unnamed Waterway carry?

About 13,899 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is US 285 over Unnamed Waterway?

The structure is 28 ft (8.5 m) long with a longest span of 6 ft (1.8 m) and a deck 39 ft wide.

Who owns US 285 over Unnamed Waterway?

It is owned by the State Highway Agency.