US Bridges

KY-57 over Boone Creek

Poor

Bourbon County, Kentucky · .25 MI S of JCT Ky 537 · Structure no. 009B00044N

Built
1930
95 years old
Condition
Poor
inspected February 2024
Type
Culvert
Steel
Length
58 ft
2 main spans
Daily traffic
263
2023 count
Owner
State
State Highway Agency

About this bridge

KY-57 over Boone Creek is a steel culvert carrying KY-57 over Boone Creek in Bourbon County, Kentucky. It was built in 1930, so it is 95 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 4 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.

It carries about 263 vehicles a day, projected to reach 263 by 2043. The structure is 58 ft (17.7 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKY-57
CrossesBoone Creek
Location.25 MI S of JCT Ky 537
RouteState Highway 57
CountyBourbon County
StateKentucky
Coordinates38.175, -84.03611
Functional classRural Minor Collector

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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating107.1 US tons
Inventory rating88.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span28 ft (8.4 m)
Deck width22 ft (6.6 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic263 (2023)
Projected traffic263 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$157,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-57 over Boone Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is KY-57 over Boone Creek 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 February 2024.

How much traffic does KY-57 over Boone Creek carry?

About 263 vehicles per day (2023 count).

How long is KY-57 over Boone Creek?

The structure is 58 ft (17.7 m) long with a longest span of 28 ft (8.4 m) and a deck 22 ft wide.

Who owns KY-57 over Boone Creek?

It is owned by the State Highway Agency.