US Bridges

NM-47 Sbl over I-25 Nbl and Sbl

Good

Bernalillo County, New Mexico · NM-47 SB over I-25 · Structure no. 000000000007359

Built
1973
52 years old, rebuilt 2005
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
306 ft
4 main spans
Daily traffic
19,512
2023 count
Owner
State
State Highway Agency

About this bridge

NM-47 Sbl over I-25 Nbl and Sbl is a steel stringer/multi-beam or girder carrying NM-47 Sbl over I-25 Nbl and Sbl in Bernalillo County, New Mexico. It was built in 1973 and reconstructed in 2005, so it is 52 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 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 19,512 vehicles a day, roughly 13% of them trucks, projected to reach 26,536 by 2043. The structure is 306 ft (93.3 m) long and 57 ft wide.

CarriesNM-47 Sbl
CrossesI-25 Nbl and Sbl
LocationNM-47 SB over I-25
RouteState Highway 47
Coordinates34.95252, -106.66443
Functional classUrban Other Principal Arterial

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length306 ft (93.3 m)
Longest span101 ft (30.8 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,512 (2023)
Projected traffic26,536 by 2043
Trucks13%
Lanes on structure2
Traffic directionOne-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 proposedDeck replacement with only incidental widening
Estimated improvement cost$900,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-47 Sbl over I-25 Nbl and Sbl built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2005.

What condition is NM-47 Sbl over I-25 Nbl and Sbl 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 June 2023.

How much traffic does NM-47 Sbl over I-25 Nbl and Sbl carry?

About 19,512 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-47 Sbl over I-25 Nbl and Sbl?

The structure is 306 ft (93.3 m) long with a longest span of 101 ft (30.8 m) and a deck 57 ft wide.

Who owns NM-47 Sbl over I-25 Nbl and Sbl?

It is owned by the State Highway Agency.