US Bridges

I-25 Sbl over Sheep Creek

Fair

Socorro County, New Mexico · 2.2 MI S JCT I-25/NM-107 · Structure no. 000000000006780

Built
1968
57 years old
Condition
Fair
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 Sbl over Sheep Creek is a prestressed concrete stringer/multi-beam or girder carrying I-25 Sbl 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 fair condition with a lowest component rating of 6 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 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.

CarriesI-25 Sbl
CrossesSheep Creek
Location2.2 MI S JCT I-25/NM-107
RouteInterstate 25
Coordinates33.61905, -107.14169
Functional classRural Principal Arterial - Interstate

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.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.7 US tons
Inventory rating31 US tons

Structure

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 width39 ft (11.9 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Sbl over Sheep Creek built?

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

What condition is I-25 Sbl over Sheep Creek 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 I-25 Sbl over Sheep Creek carry?

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

How long is I-25 Sbl 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 Sbl over Sheep Creek?

It is owned by the State Highway Agency.