US Bridges

I-25 Nbl over Manzanares Street

Good

Socorro County, New Mexico · 9.8 MI N JCT US-380/I-25 · Structure no. 000000000007027

Built
1970
55 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
7,826
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Manzanares Street is a prestressed concrete continuous stringer/multi-beam or girder carrying I-25 Nbl over Manzanares Street in Socorro County, New Mexico. It was built in 1970, so it is 55 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 7,826 vehicles a day, roughly 14% of them trucks, projected to reach 10,643 by 2043. The structure is 112 ft (34.1 m) long and 42 ft wide.

CarriesI-25 Nbl
CrossesManzanares Street
Location9.8 MI N JCT US-380/I-25
RouteInterstate 25
Coordinates34.05778, -106.88734
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.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.3 US tons
Inventory rating35.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,826 (2023)
Projected traffic10,643 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$619,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl over Manzanares Street built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-25 Nbl over Manzanares Street 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 February 2025.

How much traffic does I-25 Nbl over Manzanares Street carry?

About 7,826 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Nbl over Manzanares Street?

The structure is 112 ft (34.1 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns I-25 Nbl over Manzanares Street?

It is owned by the State Highway Agency.