US Bridges

NM-35 over Willow Spring Canyon

FairPosted for load

Grant County, New Mexico · 5.1 MI N of JCT NM-152 · Structure no. 000000000001873

Built
1941
84 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
28 ft
1 main span
Daily traffic
1,168
2023 count
Owner
State
State Highway Agency

About this bridge

NM-35 over Willow Spring Canyon is a wood or timber stringer/multi-beam or girder carrying NM-35 over Willow Spring Canyon in Grant County, New Mexico. It was built in 1941, so it is 84 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,168 vehicles a day, roughly 11% of them trucks, projected to reach 1,588 by 2043. The structure is 28 ft (8.6 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesNM-35
CrossesWillow Spring Canyon
Location5.1 MI N of JCT NM-152
RouteState Highway 35
Coordinates32.85501, -107.97939
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating16.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length28 ft (8.6 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,168 (2023)
Projected traffic1,588 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$53,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-35 over Willow Spring Canyon built?

It was built in 1941, making it 84 years old in 2025.

What condition is NM-35 over Willow Spring Canyon 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 August 2024.

How much traffic does NM-35 over Willow Spring Canyon carry?

About 1,168 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-35 over Willow Spring Canyon?

The structure is 28 ft (8.6 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns NM-35 over Willow Spring Canyon?

It is owned by the State Highway Agency.