US Bridges

KY-780 over Over Bayou De Chien

PoorClosed to traffic

Hickman County, Kentucky · .2 MI West of JCT US 51 · Structure no. 053B00104N

Built
1964
61 years old, rebuilt 2003
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
140
2023 count
Owner
State
State Highway Agency

About this bridge

KY-780 over Over Bayou De Chien is a steel stringer/multi-beam or girder carrying KY-780 over Over Bayou De Chien in Hickman County, Kentucky. It was built in 1964 and reconstructed in 2003, so it is 61 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 140 vehicles a day, projected to reach 140 by 2043. The structure is 35 ft (10.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKY-780
CrossesOver Bayou De Chien
Location.2 MI West of JCT US 51
RouteState Highway 780
Coordinates36.63556, -88.97611
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0.2 US tons
Inventory rating0.1 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2023)
Projected traffic140 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-780 over Over Bayou De Chien built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2003.

What condition is KY-780 over Over Bayou De Chien in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does KY-780 over Over Bayou De Chien carry?

About 140 vehicles per day (2023 count).

How long is KY-780 over Over Bayou De Chien?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns KY-780 over Over Bayou De Chien?

It is owned by the State Highway Agency.