US Bridges

US-285 over Unnamed Waterway

Fair

Santa Fe County, New Mexico · 13.10 MI S of JCT NM-41 · Structure no. 000000000003852

Built
1940
85 years old, rebuilt 1995
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
4 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 1940 and reconstructed in 1995, so it is 85 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 1,862 vehicles a day, roughly 17% of them trucks, projected to reach 2,532 by 2043. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS-285
CrossesUnnamed Waterway
Location13.10 MI S of JCT NM-41
RouteU.S. Route 285
CountySanta Fe County
StateNew Mexico
Coordinates35.2857, -105.82315
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
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 rating98.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length35 ft (10.8 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 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$262,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US-285 over Unnamed Waterway built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1995.

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 December 2023.

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 35 ft (10.8 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.