US Bridges

KY-720 over Western Kentucky Parkway

FairPosted for load

Grayson County, Kentucky · 1 MI SE of JCT US 62 · Structure no. 043B00078N

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
191 ft
4 main spans
Daily traffic
266
2023 count
Owner
State
State Highway Agency

About this bridge

KY-720 over Western Kentucky Parkway is a concrete continuous tee beam carrying KY-720 over Western Kentucky Parkway in Grayson County, Kentucky. It was built in 1962, so it is 63 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 5 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 266 vehicles a day, roughly 12% of them trucks, projected to reach 266 by 2043. The structure is 191 ft (58.1 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesKY-720
CrossesWestern Kentucky Parkway
Location1 MI SE of JCT US 62
RouteState Highway 720
CountyGrayson County
StateKentucky
Coordinates37.53639, -86.13556
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length191 ft (58.1 m)
Longest span54 ft (16.5 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic266 (2023)
Projected traffic266 by 2043
Trucks12%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-720 over Western Kentucky Parkway built?

It was built in 1962, making it 63 years old in 2025.

What condition is KY-720 over Western Kentucky Parkway 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 October 2024.

How much traffic does KY-720 over Western Kentucky Parkway carry?

About 266 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is KY-720 over Western Kentucky Parkway?

The structure is 191 ft (58.1 m) long with a longest span of 54 ft (16.5 m) and a deck 29 ft wide.

Who owns KY-720 over Western Kentucky Parkway?

It is owned by the State Highway Agency.