US Bridges

US-64 over Unnamed Waterway

Good

Taos County, New Mexico · 13.5 MI E of JCT US-285 · Structure no. 000000000006613

Built
1964
61 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
4,012
2023 count
Owner
State
State Highway Agency

About this bridge

US-64 over Unnamed Waterway is a concrete culvert carrying US-64 over Unnamed Waterway in Taos County, New Mexico. It was built in 1964, so it is 61 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 4,012 vehicles a day, roughly 11% of them trucks, projected to reach 5,456 by 2043. The structure is 30 ft (9 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS-64
CrossesUnnamed Waterway
Location13.5 MI E of JCT US-285
RouteU.S. Route 64
Coordinates36.54864, -105.76147
Functional classRural Major Collector

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 inspectionDecember 2022
Inspection intervalevery 48 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 rating49.6 US tons
Inventory rating35.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,012 (2023)
Projected traffic5,456 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

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$122,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US-64 over Unnamed Waterway built?

It was built in 1964, making it 61 years old in 2025.

What condition is US-64 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 December 2022.

How much traffic does US-64 over Unnamed Waterway carry?

About 4,012 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US-64 over Unnamed Waterway?

The structure is 30 ft (9 m) long with a longest span of 13 ft (4 m).

Who owns US-64 over Unnamed Waterway?

It is owned by the State Highway Agency.