US Bridges

NM-58 over Irrigation Canal

Fair

Colfax County, New Mexico · 4.8 MI E of JCT US-64 · Structure no. 000000000005474

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
887
2023 count
Owner
State
State Highway Agency

About this bridge

NM-58 over Irrigation Canal is a wood or timber stringer/multi-beam or girder carrying NM-58 over Irrigation Canal in Colfax County, New Mexico. It was built in 1955, so it is 70 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 887 vehicles a day, roughly 11% of them trucks, projected to reach 1,206 by 2043. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

Open in Google Maps
CarriesNM-58
CrossesIrrigation Canal
Location4.8 MI E of JCT US-64
RouteState Highway 58
CountyColfax County
StateNew Mexico
Coordinates36.4827, -104.8322
Functional classRural Major Collector

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.
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
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 spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic887 (2023)
Projected traffic1,206 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 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$49,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-58 over Irrigation Canal built?

It was built in 1955, making it 70 years old in 2025.

What condition is NM-58 over Irrigation Canal 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-58 over Irrigation Canal carry?

About 887 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-58 over Irrigation Canal?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns NM-58 over Irrigation Canal?

It is owned by the State Highway Agency.