US Bridges

KY-20 over Woolper Creek

Good

Boone County, Kentucky · 2.8 MI Nor of JCT Ky 18 · Structure no. 008B00094N

Built
2016
9 years old
Condition
Good
inspected June 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
283 ft
3 main spans
Daily traffic
718
2021 count
Owner
State
State Highway Agency

About this bridge

KY-20 over Woolper Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying KY-20 over Woolper Creek in Boone County, Kentucky. It was built in 2016, so it is 9 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 718 vehicles a day, roughly 19% of them trucks, projected to reach 718 by 2041. The structure is 283 ft (86.3 m) long and 35 ft wide. If it were closed, the detour would be 9.3 mi (15 km).

Location

Open in Google Maps
CarriesKY-20
CrossesWoolper Creek
Location2.8 MI Nor of JCT Ky 18
RouteState Highway 20
CountyBoone County
StateKentucky
Coordinates39.02722, -84.85111
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length283 ft (86.3 m)
Longest span110 ft (33.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic718 (2021)
Projected traffic718 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.3 mi (15 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was KY-20 over Woolper Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is KY-20 over Woolper Creek 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 June 2021.

How much traffic does KY-20 over Woolper Creek carry?

About 718 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is KY-20 over Woolper Creek?

The structure is 283 ft (86.3 m) long with a longest span of 110 ft (33.5 m) and a deck 35 ft wide.

Who owns KY-20 over Woolper Creek?

It is owned by the State Highway Agency.