US Bridges

IA-4158 over 6th St. & I-40EB on Ramp

Fair

Bernalillo County, New Mexico · 1.11 MI W JCT I-25 & I-40 · Structure no. 000000000009901

Built
2002
23 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
422 ft
3 main spans
Daily traffic
8,499
2023 count
Owner
State
State Highway Agency

About this bridge

IA-4158 over 6th St. & I-40EB on Ramp is a steel continuous stringer/multi-beam or girder carrying IA-4158 over 6th St. & I-40EB on Ramp in Bernalillo County, New Mexico. It was built in 2002, so it is 23 years old, younger 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 5 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 8,499 vehicles a day, roughly 14% of them trucks, projected to reach 11,558 by 2043. The structure is 422 ft (128.6 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesIA-4158
Crosses6th St. & I-40EB on Ramp
Location1.11 MI W JCT I-25 & I-40
RouteInterstate 4158
CountyBernalillo County
StateNew Mexico
Coordinates35.10627, -106.64994
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length422 ft (128.6 m)
Longest span151 ft (46 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,499 (2023)
Projected traffic11,558 by 2043
Trucks14%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 IA-4158 over 6th St. & I-40EB on Ramp built?

It was built in 2002, making it 23 years old in 2025.

What condition is IA-4158 over 6th St. & I-40EB on Ramp 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 July 2024.

How much traffic does IA-4158 over 6th St. & I-40EB on Ramp carry?

About 8,499 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is IA-4158 over 6th St. & I-40EB on Ramp?

The structure is 422 ft (128.6 m) long with a longest span of 151 ft (46 m) and a deck 43 ft wide.

Who owns IA-4158 over 6th St. & I-40EB on Ramp?

It is owned by the State Highway Agency.