US Bridges

I-25 Nbl over Percha Creek

Fair

Sierra County, New Mexico · 0.34 MI N of JCT NM-187 · Structure no. 000000000006579

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
5 main spans
Daily traffic
8,008
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Percha Creek is a prestressed concrete stringer/multi-beam or girder carrying I-25 Nbl over Percha Creek in Sierra County, New Mexico. It was built in 1965, so it is 60 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 8,008 vehicles a day, roughly 45% of them trucks, projected to reach 10,890 by 2043. The structure is 240 ft (73.2 m) long and 44 ft wide.

CarriesI-25 Nbl
CrossesPercha Creek
Location0.34 MI N of JCT NM-187
RouteInterstate 25
Coordinates32.89828, -107.31398
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating59.4 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span48 ft (14.6 m)
Deck width44 ft (13.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,008 (2023)
Projected traffic10,890 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 Nbl over Percha Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-25 Nbl over Percha 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 April 2024.

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

About 8,008 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over Percha Creek?

The structure is 240 ft (73.2 m) long with a longest span of 48 ft (14.6 m) and a deck 44 ft wide.

Who owns I-25 Nbl over Percha Creek?

It is owned by the State Highway Agency.