US Bridges

I-25 Nbl over Bonanza Creek

Fair

Santa Fe County, New Mexico · 7.50 M S JCT NM-14/I-25 · Structure no. 000000000005530

Built
1953
72 years old, rebuilt 1999
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
5 main spans
Daily traffic
33,720
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Bonanza Creek is a steel continuous stringer/multi-beam or girder carrying I-25 Nbl over Bonanza Creek in Santa Fe County, New Mexico. It was built in 1953 and reconstructed in 1999, so it is 72 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 33,720 vehicles a day, roughly 45% of them trucks, projected to reach 45,859 by 2043. The structure is 184 ft (56.1 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-25 Nbl
CrossesBonanza Creek
Location7.50 M S JCT NM-14/I-25
RouteInterstate 25
CountySanta Fe County
StateNew Mexico
Coordinates35.54138, -106.13618
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.3 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span40 ft (12.2 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,720 (2023)
Projected traffic45,859 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$390,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-25 Nbl over Bonanza Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1999.

What condition is I-25 Nbl over Bonanza 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 Nbl over Bonanza Creek carry?

About 33,720 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over Bonanza Creek?

The structure is 184 ft (56.1 m) long with a longest span of 40 ft (12.2 m) and a deck 45 ft wide.

Who owns I-25 Nbl over Bonanza Creek?

It is owned by the State Highway Agency.