US Bridges

KY-720 over Dorsey Run

Good

Hardin County, Kentucky · .70 MI S.W. of JCT Ky 84 · Structure no. 047B00010N

Built
1954
71 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
739
2021 count
Owner
State
State Highway Agency

About this bridge

KY-720 over Dorsey Run is a concrete culvert carrying KY-720 over Dorsey Run in Hardin County, Kentucky. It was built in 1954, so it is 71 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 739 vehicles a day, projected to reach 739 by 2041. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesKY-720
CrossesDorsey Run
Location.70 MI S.W. of JCT Ky 84
RouteState Highway 720
CountyHardin County
StateKentucky
Coordinates37.51806, -85.90028
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width24 ft (7.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic739 (2021)
Projected traffic739 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Dorsey Run built?

It was built in 1954, making it 71 years old in 2025.

What condition is KY-720 over Dorsey Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does KY-720 over Dorsey Run carry?

About 739 vehicles per day (2021 count).

How long is KY-720 over Dorsey Run?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m) and a deck 24 ft wide.

Who owns KY-720 over Dorsey Run?

It is owned by the State Highway Agency.