US Bridges

I-71 SB over Ky 329

Fair

Oldham County, Kentucky · 3.0 MI S of Ky 146 · Structure no. 093B00031L

Built
1968
57 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
178 ft
3 main spans
Daily traffic
20,700
2017 count
Owner
State
State Highway Agency

About this bridge

I-71 SB over Ky 329 is a concrete continuous tee beam carrying I-71 SB over Ky 329 in Oldham County, Kentucky. It was built in 1968, so it is 57 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 20,700 vehicles a day, roughly 18% of them trucks, projected to reach 22,769 by 2037. The structure is 178 ft (54.3 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesI-71 SB
CrossesKy 329
Location3.0 MI S of Ky 146
RouteInterstate 71
CountyOldham County
StateKentucky
Coordinates38.34722, -85.49139
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 rating66 US tons
Inventory rating39.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,700 (2017)
Projected traffic22,769 by 2037
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 over Ky 329 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-71 SB over Ky 329 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 March 2023.

How much traffic does I-71 SB over Ky 329 carry?

About 20,700 vehicles per day (2017 count), of which roughly 18% are trucks.

How long is I-71 SB over Ky 329?

The structure is 178 ft (54.3 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns I-71 SB over Ky 329?

It is owned by the State Highway Agency.