US Bridges

I-71 SB Ramp over I-71 NB & I-264 Ramp

Fair

Jefferson County, Kentucky · I264 Ntrch-Lower Bridge · Structure no. 056B00056N

Built
1967
58 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
106 ft
1 main span
Daily traffic
54,176
2023 count
Owner
State
State Highway Agency

About this bridge

I-71 SB Ramp over I-71 NB & I-264 Ramp is a steel stringer/multi-beam or girder carrying I-71 SB Ramp over I-71 NB & I-264 Ramp in Jefferson County, Kentucky. It was built in 1967, so it is 58 years old, older than the Kentucky average of 46.6 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 54,176 vehicles a day, roughly 8% of them trucks, projected to reach 59,593 by 2043. The structure is 106 ft (32.2 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-71 SB Ramp
CrossesI-71 NB & I-264 Ramp
LocationI264 Ntrch-Lower Bridge
RouteInterstate 71
CountyJefferson County
StateKentucky
Coordinates38.28861, -85.64611
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.8 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length106 ft (32.2 m)
Longest span100 ft (30.5 m)
Deck width38 ft (11.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic54,176 (2023)
Projected traffic59,593 by 2043
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-71 SB Ramp over I-71 NB & I-264 Ramp built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-71 SB Ramp over I-71 NB & I-264 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 January 2023.

How much traffic does I-71 SB Ramp over I-71 NB & I-264 Ramp carry?

About 54,176 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-71 SB Ramp over I-71 NB & I-264 Ramp?

The structure is 106 ft (32.2 m) long with a longest span of 100 ft (30.5 m) and a deck 38 ft wide.

Who owns I-71 SB Ramp over I-71 NB & I-264 Ramp?

It is owned by the State Highway Agency.