US Bridges

NM-566 over Rio Puerco (north Fork)

Good

McKinley County, New Mexico · 6.5 MI N of NM-118 · Structure no. 000000000009983

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
238 ft
3 main spans
Daily traffic
3,241
2022 count
Owner
State
State Highway Agency

About this bridge

NM-566 over Rio Puerco (north Fork) is a prestressed concrete stringer/multi-beam or girder carrying NM-566 over Rio Puerco (north Fork) in McKinley County, New Mexico. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,241 vehicles a day, roughly 5% of them trucks, projected to reach 4,407 by 2042. The structure is 238 ft (72.5 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNM-566
CrossesRio Puerco (north Fork)
Location6.5 MI N of NM-118
RouteState Highway 566
Coordinates35.61162, -108.56036
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.2 US tons
Inventory rating33.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span79 ft (24.1 m)
Deck width47 ft (14.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,241 (2022)
Projected traffic4,407 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-566 over Rio Puerco (north Fork) built?

It was built in 2024, making it 1 years old in 2025.

What condition is NM-566 over Rio Puerco (north Fork) 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 October 2024.

How much traffic does NM-566 over Rio Puerco (north Fork) carry?

About 3,241 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is NM-566 over Rio Puerco (north Fork)?

The structure is 238 ft (72.5 m) long with a longest span of 79 ft (24.1 m) and a deck 47 ft wide.

Who owns NM-566 over Rio Puerco (north Fork)?

It is owned by the State Highway Agency.