US Bridges

Johnson School RD over Br of Pettys Fork

Fair

Adair County, Kentucky · 1 MI W of N-Jct Ky 704 · Structure no. 001C00021N

Built
1974
51 years old
Condition
Fair
inspected September 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
86
2019 count
Owner
County
County Highway Agency

About this bridge

Johnson School RD over Br of Pettys Fork is a prestressed concrete box beam or girders - multiple carrying Johnson School RD over Br of Pettys Fork in Adair County, Kentucky. It was built in 1974, so it is 51 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 86 vehicles a day, projected to reach 86 by 2039. The structure is 32 ft (9.8 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJohnson School RD
CrossesBr of Pettys Fork
Location1 MI W of N-Jct Ky 704
RouteCounty Highway 1175
CountyAdair County
StateKentucky
Coordinates37.04806, -85.3225
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.6 US tons
Inventory rating43.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width21 ft (6.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86 (2019)
Projected traffic86 by 2039
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

OwnerCounty Highway Agency
Maintained byCounty 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 Johnson School RD over Br of Pettys Fork built?

It was built in 1974, making it 51 years old in 2025.

What condition is Johnson School RD over Br of Pettys Fork 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 September 2021.

How much traffic does Johnson School RD over Br of Pettys Fork carry?

About 86 vehicles per day (2019 count).

How long is Johnson School RD over Br of Pettys Fork?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 21 ft wide.

Who owns Johnson School RD over Br of Pettys Fork?

It is owned by the County Highway Agency.