US Bridges

IRR/NM-602 over Rio Pescado

Fair

McKinley County, New Mexico · 30.6 MI S of I-40 · Structure no. 000000000003372

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
82 ft
3 main spans
Daily traffic
1,146
2023 count
Owner
State
State Highway Agency

About this bridge

IRR/NM-602 over Rio Pescado is a wood or timber stringer/multi-beam or girder carrying IRR/NM-602 over Rio Pescado in McKinley County, New Mexico. It was built in 1968, so it is 57 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 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 1,146 vehicles a day, roughly 17% of them trucks, projected to reach 1,558 by 2043. The structure is 82 ft (25 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR/NM-602
CrossesRio Pescado
Location30.6 MI S of I-40
RouteState Highway 602
CountyMcKinley County
StateNew Mexico
Coordinates35.11554, -108.69713
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating23.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 15
Structure length82 ft (25 m)
Longest span31 ft (9.3 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 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 closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$182,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR/NM-602 over Rio Pescado built?

It was built in 1968, making it 57 years old in 2025.

What condition is IRR/NM-602 over Rio Pescado 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 July 2023.

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

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

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

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.3 m) and a deck 32 ft wide.

Who owns IRR/NM-602 over Rio Pescado?

It is owned by the State Highway Agency.