US Bridges

US-285 over Unnamed Waterway

Good

Santa Fe County, New Mexico · Mm 279.8 · Structure no. 000000000010029

Built
1991
34 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
28 ft
1 main span
Daily traffic
1,862
2023 count
Owner
State
State Highway Agency

About this bridge

US-285 over Unnamed Waterway is a steel culvert carrying US-285 over Unnamed Waterway in Santa Fe County, New Mexico. It was built in 1991, so it is 34 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 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 28 ft (8.5 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS-285
CrossesUnnamed Waterway
LocationMm 279.8
RouteU.S. Route 285
Coordinates35.41265, -105.86751
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 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 closed98.8 mi (159 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-285 over Unnamed Waterway built?

It was built in 1991, making it 34 years old in 2025.

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 April 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 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m).

Who owns US-285 over Unnamed Waterway?

It is owned by the State Highway Agency.