US Bridges

US-285 over Unnamed Waterway

Good

Chaves County, New Mexico · 1.2 MI N JCT US70 N/Roswl · Structure no. 000000000002310

Built
1938
87 years old, rebuilt 1999
Condition
Good
inspected August 2021
Type
Culvert
Concrete
Length
26 ft
4 main spans
Daily traffic
3,591
2023 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 1938 and reconstructed in 1999, so it is 87 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,591 vehicles a day, roughly 17% of them trucks, projected to reach 4,883 by 2043. The structure is 26 ft (7.9 m) long.

CarriesUS-285
CrossesUnnamed Waterway
Location1.2 MI N JCT US70 N/Roswl
RouteU.S. Route 285
Coordinates33.48971, -104.51921
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length26 ft (7.9 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,591 (2023)
Projected traffic4,883 by 2043
Trucks17%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$95,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-285 over Unnamed Waterway built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1999.

What condition is US-285 over Unnamed Waterway in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2021.

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

About 3,591 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US-285 over Unnamed Waterway?

The structure is 26 ft (7.9 m) long with a longest span of 6 ft (1.8 m).

Who owns US-285 over Unnamed Waterway?

It is owned by the State Highway Agency.