US Bridges

NM-122 over Rio San Jose

Fair

Cibola County, New Mexico · E of Horizon Ave/Milan W · Structure no. 000000000005666

Built
1952
73 years old, rebuilt 1955
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
88 ft
8 main spans
Daily traffic
6,839
2023 count
Owner
State
State Highway Agency

About this bridge

NM-122 over Rio San Jose is a concrete culvert carrying NM-122 over Rio San Jose in Cibola County, New Mexico. It was built in 1952 and reconstructed in 1955, so it is 73 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 6,839 vehicles a day, roughly 13% of them trucks, projected to reach 9,301 by 2043. The structure is 88 ft (26.8 m) long and 113 ft wide.

CarriesNM-122
CrossesRio San Jose
LocationE of Horizon Ave/Milan W
RouteState Highway 122
Coordinates35.18269, -107.89668
Functional classUrban Other Principal Arterial

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 inspectionMarch 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 spans8
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span10 ft (3 m)
Deck width113 ft (34.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,839 (2023)
Projected traffic9,301 by 2043
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-122 over Rio San Jose built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1955.

What condition is NM-122 over Rio San Jose 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 March 2024.

How much traffic does NM-122 over Rio San Jose carry?

About 6,839 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-122 over Rio San Jose?

The structure is 88 ft (26.8 m) long with a longest span of 10 ft (3 m) and a deck 113 ft wide.

Who owns NM-122 over Rio San Jose?

It is owned by the State Highway Agency.