US Bridges

NM-6 over I-25 Nbl/Sbl

Fair

Valencia County, New Mexico · JCT I-25/NM-6 @ Los Lunas · Structure no. 000000000008954

Built
1996
29 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
234 ft
2 main spans
Daily traffic
19,682
2023 count
Owner
State
State Highway Agency

About this bridge

NM-6 over I-25 Nbl/Sbl is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-6 over I-25 Nbl/Sbl in Valencia County, New Mexico. It was built in 1996, so it is 29 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 19,682 vehicles a day, roughly 13% of them trucks, projected to reach 26,767 by 2043. The structure is 234 ft (71.3 m) long and 86 ft wide.

Location

Open in Google Maps
CarriesNM-6
CrossesI-25 Nbl/Sbl
LocationJCT I-25/NM-6 @ Los Lunas
RouteState Highway 6
CountyValencia County
StateNew Mexico
Coordinates34.81438, -106.76116
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.2 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span117 ft (35.7 m)
Deck width86 ft (26.2 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,682 (2023)
Projected traffic26,767 by 2043
Trucks13%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-6 over I-25 Nbl/Sbl built?

It was built in 1996, making it 29 years old in 2025.

What condition is NM-6 over I-25 Nbl/Sbl 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 September 2024.

How much traffic does NM-6 over I-25 Nbl/Sbl carry?

About 19,682 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-6 over I-25 Nbl/Sbl?

The structure is 234 ft (71.3 m) long with a longest span of 117 ft (35.7 m) and a deck 86 ft wide.

Who owns NM-6 over I-25 Nbl/Sbl?

It is owned by the State Highway Agency.