US Bridges

IRR/NM-602 over Rio Nutria

Good

McKinley County, New Mexico · 1.6 MI N of NM-53 · Structure no. 000000000009368

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
134 ft
2 main spans
Daily traffic
1,146
2023 count
Owner
State
State Highway Agency

About this bridge

IRR/NM-602 over Rio Nutria is a prestressed concrete box beam or girders - multiple carrying IRR/NM-602 over Rio Nutria in McKinley County, New Mexico. It was built in 2007, so it is 18 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 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 1,146 vehicles a day, roughly 17% of them trucks, projected to reach 1,558 by 2043. The structure is 134 ft (40.8 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesIRR/NM-602
CrossesRio Nutria
Location1.6 MI N of NM-53
RouteState Highway 602
Coordinates35.13495, -108.70716
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span66 ft (20.1 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,146 (2023)
Projected traffic1,558 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 IRR/NM-602 over Rio Nutria built?

It was built in 2007, making it 18 years old in 2025.

What condition is IRR/NM-602 over Rio Nutria 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 June 2024.

How much traffic does IRR/NM-602 over Rio Nutria carry?

About 1,146 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is IRR/NM-602 over Rio Nutria?

The structure is 134 ft (40.8 m) long with a longest span of 66 ft (20.1 m) and a deck 44 ft wide.

Who owns IRR/NM-602 over Rio Nutria?

It is owned by the State Highway Agency.