US Bridges

I-25 Nbl over Sheep Creek

Good

Socorro County, New Mexico · 2.2 M S JCT NM-107/I-25 · Structure no. 000000000006779

Built
1968
57 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
6,496
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Sheep Creek is a prestressed concrete stringer/multi-beam or girder carrying I-25 Nbl over Sheep Creek in Socorro County, New Mexico. It was built in 1968, so it is 57 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 6,496 vehicles a day, roughly 45% of them trucks, projected to reach 8,834 by 2043. The structure is 174 ft (53 m) long and 41 ft wide.

Location

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CarriesI-25 Nbl
CrossesSheep Creek
Location2.2 M S JCT NM-107/I-25
RouteInterstate 25
CountySocorro County
StateNew Mexico
Coordinates33.61878, -107.14136
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.7 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length174 ft (53 m)
Longest span57 ft (17.4 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,496 (2023)
Projected traffic8,834 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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$535,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl over Sheep Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-25 Nbl over Sheep Creek 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 August 2023.

How much traffic does I-25 Nbl over Sheep Creek carry?

About 6,496 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over Sheep Creek?

The structure is 174 ft (53 m) long with a longest span of 57 ft (17.4 m) and a deck 41 ft wide.

Who owns I-25 Nbl over Sheep Creek?

It is owned by the State Highway Agency.