US Bridges

NM-112 over Arroyo Blanco

Fair

Rio Arriba County, New Mexico · 1.4 MI N of NM-96 · Structure no. 000000000009397

Built
2007
18 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
52 ft
6 main spans
Daily traffic
171
2023 count
Owner
State
State Highway Agency

About this bridge

NM-112 over Arroyo Blanco is a concrete culvert carrying NM-112 over Arroyo Blanco in Rio Arriba 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 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 171 vehicles a day, roughly 11% of them trucks, projected to reach 232 by 2043. The structure is 52 ft (15.9 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesNM-112
CrossesArroyo Blanco
Location1.4 MI N of NM-96
RouteState Highway 112
Coordinates36.25703, -106.91954
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic171 (2023)
Projected traffic232 by 2043
Trucks11%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-112 over Arroyo Blanco built?

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

What condition is NM-112 over Arroyo Blanco 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-112 over Arroyo Blanco carry?

About 171 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-112 over Arroyo Blanco?

The structure is 52 ft (15.9 m) long with a longest span of 8 ft (2.4 m).

Who owns NM-112 over Arroyo Blanco?

It is owned by the State Highway Agency.