US Bridges

US-285 over Unnamed Waterway

Good

Santa Fe County, New Mexico · US 285 Mm 283.3 · Structure no. 000000000003858

Built
1938
87 years old, rebuilt 1981
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,862
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 Santa Fe County, New Mexico. It was built in 1938 and reconstructed in 1981, 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 1,862 vehicles a day, roughly 17% of them trucks, projected to reach 2,532 by 2043. The structure is 23 ft (7 m) long.

CarriesUS-285
CrossesUnnamed Waterway
LocationUS 285 Mm 283.3
RouteU.S. Route 285
Coordinates35.45579, -105.89341
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 inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,862 (2023)
Projected traffic2,532 by 2043
Trucks17%
Lanes on structure2
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$75,000 (2025 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 1981.

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 January 2024.

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

About 1,862 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US-285 over Unnamed Waterway?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns US-285 over Unnamed Waterway?

It is owned by the State Highway Agency.