US Bridges

NM-47 Nbl over I-25 Exit Ramp to NM47 S

Fair

Bernalillo County, New Mexico · NM-47 NB over I-25 Ramp · Structure no. 000000000007362

Built
1973
52 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
161 ft
3 main spans
Daily traffic
7,965
2023 count
Owner
State
State Highway Agency

About this bridge

NM-47 Nbl over I-25 Exit Ramp to NM47 S is a prestressed concrete stringer/multi-beam or girder carrying NM-47 Nbl over I-25 Exit Ramp to NM47 S in Bernalillo County, New Mexico. It was built in 1973, 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 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 7,965 vehicles a day, roughly 13% of them trucks, projected to reach 10,832 by 2043. The structure is 161 ft (49.1 m) long and 57 ft wide.

CarriesNM-47 Nbl
CrossesI-25 Exit Ramp to NM47 S
LocationNM-47 NB over I-25 Ramp
RouteState Highway 47
Coordinates34.95541, -106.66174
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 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 geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span62 ft (18.9 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,965 (2023)
Projected traffic10,832 by 2043
Trucks13%
Lanes on structure3
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-47 Nbl over I-25 Exit Ramp to NM47 S built?

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

What condition is NM-47 Nbl over I-25 Exit Ramp to NM47 S 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-47 Nbl over I-25 Exit Ramp to NM47 S carry?

About 7,965 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-47 Nbl over I-25 Exit Ramp to NM47 S?

The structure is 161 ft (49.1 m) long with a longest span of 62 ft (18.9 m) and a deck 57 ft wide.

Who owns NM-47 Nbl over I-25 Exit Ramp to NM47 S?

It is owned by the State Highway Agency.