US Bridges

Ky 864 SB over NS Railroad

Fair

Jefferson County, Kentucky · 0.35 MI S of I-264 · Structure no. 056B00310L

Built
1983
42 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,143 ft
17 main spans
Daily traffic
15,501
2023 count
Owner
State
State Highway Agency

About this bridge

Ky 864 SB over NS Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying Ky 864 SB over NS Railroad in Jefferson County, Kentucky. It was built in 1983, so it is 42 years old, younger 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 15,501 vehicles a day, roughly 10% of them trucks, projected to reach 15,501 by 2043. The structure is 1,143 ft (348.3 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKy 864 SB
CrossesNS Railroad
Location0.35 MI S of I-264
RouteState Highway 864
CountyJefferson County
StateKentucky
Coordinates38.19075, -85.70454
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 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 rating64.9 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,143 ft (348.3 m)
Longest span69 ft (21 m)
Deck width47 ft (14.3 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,501 (2023)
Projected traffic15,501 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
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 Ky 864 SB over NS Railroad built?

It was built in 1983, making it 42 years old in 2025.

What condition is Ky 864 SB over NS Railroad 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 2024.

How much traffic does Ky 864 SB over NS Railroad carry?

About 15,501 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Ky 864 SB over NS Railroad?

The structure is 1,143 ft (348.3 m) long with a longest span of 69 ft (21 m) and a deck 47 ft wide.

Who owns Ky 864 SB over NS Railroad?

It is owned by the State Highway Agency.