US Bridges

NM-6 over Rio Grand River

Good

Valencia County, New Mexico · 1.1 M E of JCT NM-314 · Structure no. 000000000009827

Built
2022
3 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
930 ft
8 main spans
Daily traffic
25,000
2019 count
Owner
State
State Highway Agency

About this bridge

NM-6 over Rio Grand River is a prestressed concrete stringer/multi-beam or girder carrying NM-6 over Rio Grand River in Valencia County, New Mexico. It was built in 2022, so it is 3 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25,000 vehicles a day, roughly 10% of them trucks, projected to reach 34,999 by 2039. The structure is 930 ft (283.5 m) long and 83 ft wide.

Location

No coordinates are recorded for this structure.

CarriesNM-6
CrossesRio Grand River
Location1.1 M E of JCT NM-314
RouteState Highway 6
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length930 ft (283.5 m)
Longest span116 ft (35.4 m)
Deck width83 ft (25.3 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25,000 (2019)
Projected traffic34,999 by 2039
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-6 over Rio Grand River built?

It was built in 2022, making it 3 years old in 2025.

What condition is NM-6 over Rio Grand River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does NM-6 over Rio Grand River carry?

About 25,000 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is NM-6 over Rio Grand River?

The structure is 930 ft (283.5 m) long with a longest span of 116 ft (35.4 m) and a deck 83 ft wide.

Who owns NM-6 over Rio Grand River?

It is owned by the State Highway Agency.