US Bridges

49-050 over I-25 Nbl & Sbl/Nmrx

Fair

Santa Fe County, New Mexico · I-25 LA Cienega Overpass · Structure no. 000000000009423

Built
2008
17 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
304 ft
3 main spans
Daily traffic
1,584
2023 count
Owner
State
State Highway Agency

About this bridge

49-050 over I-25 Nbl & Sbl/Nmrx is a prestressed concrete stringer/multi-beam or girder carrying 49-050 over I-25 Nbl & Sbl/Nmrx in Santa Fe County, New Mexico. It was built in 2008, so it is 17 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 5 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 1,584 vehicles a day, roughly 5% of them trucks, projected to reach 2,154 by 2043. The structure is 304 ft (92.7 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries49-050
CrossesI-25 Nbl & Sbl/Nmrx
LocationI-25 LA Cienega Overpass
RouteCounty Highway 49050
CountySanta Fe County
StateNew Mexico
Coordinates35.55302, -106.11897
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.3 US tons
Inventory rating58.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length304 ft (92.7 m)
Longest span120 ft (36.6 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,584 (2023)
Projected traffic2,154 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed3.1 mi (5 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 49-050 over I-25 Nbl & Sbl/Nmrx built?

It was built in 2008, making it 17 years old in 2025.

What condition is 49-050 over I-25 Nbl & Sbl/Nmrx 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 2023.

How much traffic does 49-050 over I-25 Nbl & Sbl/Nmrx carry?

About 1,584 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is 49-050 over I-25 Nbl & Sbl/Nmrx?

The structure is 304 ft (92.7 m) long with a longest span of 120 ft (36.6 m) and a deck 36 ft wide.

Who owns 49-050 over I-25 Nbl & Sbl/Nmrx?

It is owned by the State Highway Agency.