US Bridges

Ky 55 over I-71

Fair

Henry County, Kentucky · 0.1 MI S of Trimble Cl · Structure no. 052B00001N

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
274 ft
4 main spans
Daily traffic
826
2021 count
Owner
State
State Highway Agency

About this bridge

Ky 55 over I-71 is a concrete continuous tee beam carrying Ky 55 over I-71 in Henry 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 826 vehicles a day, roughly 11% of them trucks, projected to reach 826 by 2041. The structure is 274 ft (83.5 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesKy 55
CrossesI-71
Location0.1 MI S of Trimble Cl
RouteState Highway 55
CountyHenry County
StateKentucky
Coordinates38.56556, -85.19306
Functional classRural Major Collector

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 inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length274 ft (83.5 m)
Longest span78 ft (23.8 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic826 (2021)
Projected traffic826 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Ky 55 over I-71 built?

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

What condition is Ky 55 over I-71 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 2023.

How much traffic does Ky 55 over I-71 carry?

About 826 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Ky 55 over I-71?

The structure is 274 ft (83.5 m) long with a longest span of 78 ft (23.8 m) and a deck 36 ft wide.

Who owns Ky 55 over I-71?

It is owned by the State Highway Agency.