US Bridges

KY-399 over Kentucky Rvr @heidelberg

FairPosted for load

Lee County, Kentucky · Ovr Ky Rvr at Heidelberg · Structure no. 065B00016N

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
466 ft
1 main span
Daily traffic
198
2021 count
Owner
State
State Highway Agency

About this bridge

KY-399 over Kentucky Rvr @heidelberg is a steel truss - thru carrying KY-399 over Kentucky Rvr @heidelberg in Lee 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. Its operating status is: posted for load restriction.

It carries about 198 vehicles a day, roughly 5% of them trucks, projected to reach 198 by 2041. The structure is 466 ft (142 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKY-399
CrossesKentucky Rvr @heidelberg
LocationOvr Ky Rvr at Heidelberg
RouteState Highway 399
CountyLee County
StateKentucky
Coordinates37.55111, -83.77167
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.3 US tons
Inventory rating7.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length466 ft (142 m)
Longest span288 ft (87.8 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic198 (2021)
Projected traffic198 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-399 over Kentucky Rvr @heidelberg built?

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

What condition is KY-399 over Kentucky Rvr @heidelberg 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 September 2024.

How much traffic does KY-399 over Kentucky Rvr @heidelberg carry?

About 198 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is KY-399 over Kentucky Rvr @heidelberg?

The structure is 466 ft (142 m) long with a longest span of 288 ft (87.8 m) and a deck 29 ft wide.

Who owns KY-399 over Kentucky Rvr @heidelberg?

It is owned by the State Highway Agency.