US Bridges

US-84 over Unnamed Waterway

Good

Rio Arriba County, New Mexico · .2 MI North JCT US-285 · Structure no. 000000000006647

Built
1965
60 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
11,253
2023 count
Owner
State
State Highway Agency

About this bridge

US-84 over Unnamed Waterway is a concrete culvert carrying US-84 over Unnamed Waterway in Rio Arriba County, New Mexico. It was built in 1965, so it is 60 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 11,253 vehicles a day, roughly 11% of them trucks, projected to reach 15,304 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesUS-84
CrossesUnnamed Waterway
Location.2 MI North JCT US-285
RouteU.S. Route 84
Coordinates36.09555, -106.13707
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic11,253 (2023)
Projected traffic15,304 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-84 over Unnamed Waterway built?

It was built in 1965, making it 60 years old in 2025.

What condition is US-84 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 November 2021.

How much traffic does US-84 over Unnamed Waterway carry?

About 11,253 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US-84 over Unnamed Waterway?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns US-84 over Unnamed Waterway?

It is owned by the State Highway Agency.