US Bridges

I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB

FairPosted for load

Jefferson County, Kentucky · 0.20 MI N of US 31W · Structure no. 056B00300N

Built
1975
50 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
1,210 ft
17 main spans
Daily traffic
58,404
2021 count
Owner
State
State Highway Agency

About this bridge

I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB is a steel continuous girder and floorbeam system carrying I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB in Jefferson County, Kentucky. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 58,404 vehicles a day, roughly 10% of them trucks, projected to reach 64,244 by 2041. The structure is 1,210 ft (368.7 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-64 WB on Ramp 1
CrossesI-64 Ramp 4 & US 31W WB
Location0.20 MI N of US 31W
RouteInterstate 64
CountyJefferson County
StateKentucky
Coordinates38.25889, -85.76556
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,210 ft (368.7 m)
Longest span106 ft (32.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck18 ft (5.6 m)

Traffic and service

Average daily traffic58,404 (2021)
Projected traffic64,244 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB built?

It was built in 1975, making it 50 years old in 2025.

What condition is I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB 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 June 2023.

How much traffic does I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB carry?

About 58,404 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB?

The structure is 1,210 ft (368.7 m) long with a longest span of 106 ft (32.2 m) and a deck 33 ft wide.

Who owns I-64 WB on Ramp 1 over I-64 Ramp 4 & US 31W WB?

It is owned by the State Highway Agency.