US Bridges

I-25 Nbl/Sbl/Frtg over Unnamed Waterway

Fair

Sandoval County, New Mexico · 2.0 MI N of JCT US-550 · Structure no. 000000000005760

Built
1957
68 years old, rebuilt 1981
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
67 ft
6 main spans
Daily traffic
40,179
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl/Frtg over Unnamed Waterway is a concrete culvert carrying I-25 Nbl/Sbl/Frtg over Unnamed Waterway in Sandoval County, New Mexico. It was built in 1957 and reconstructed in 1981, so it is 68 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 40,179 vehicles a day, roughly 14% of them trucks, projected to reach 54,643 by 2043. The structure is 67 ft (20.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-25 Nbl/Sbl/Frtg
CrossesUnnamed Waterway
Location2.0 MI N of JCT US-550
RouteInterstate 25
CountySandoval County
StateNew Mexico
Coordinates35.34045, -106.51622
Functional classUrban 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
Channel and channel protection2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,179 (2023)
Projected traffic54,643 by 2043
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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$300,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl/Sbl/Frtg over Unnamed Waterway built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1981.

What condition is I-25 Nbl/Sbl/Frtg over Unnamed Waterway 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 2024.

How much traffic does I-25 Nbl/Sbl/Frtg over Unnamed Waterway carry?

About 40,179 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Nbl/Sbl/Frtg over Unnamed Waterway?

The structure is 67 ft (20.4 m) long with a longest span of 10 ft (3 m).

Who owns I-25 Nbl/Sbl/Frtg over Unnamed Waterway?

It is owned by the State Highway Agency.