US Bridges

NM-516 over Animas River

Fair

San Juan County, New Mexico · 1.7 MI N JCT US64/NM-516 · Structure no. 000000000008571

Built
1985
40 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
303 ft
3 main spans
Daily traffic
21,352
2023 count
Owner
State
State Highway Agency

About this bridge

NM-516 over Animas River is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-516 over Animas River in San Juan County, New Mexico. It was built in 1985, so it is 40 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 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 21,352 vehicles a day, roughly 12% of them trucks, projected to reach 29,038 by 2043. The structure is 303 ft (92.4 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNM-516
CrossesAnimas River
Location1.7 MI N JCT US64/NM-516
RouteState Highway 516
Coordinates36.73935, -108.16668
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span99 ft (30.2 m)
Deck width76 ft (23.2 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,352 (2023)
Projected traffic29,038 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 NM-516 over Animas River built?

It was built in 1985, making it 40 years old in 2025.

What condition is NM-516 over Animas River 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 May 2024.

How much traffic does NM-516 over Animas River carry?

About 21,352 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is NM-516 over Animas River?

The structure is 303 ft (92.4 m) long with a longest span of 99 ft (30.2 m) and a deck 76 ft wide.

Who owns NM-516 over Animas River?

It is owned by the State Highway Agency.