US Bridges

Johnson RD over Johnson Creek

Fair

Mercer County, Kentucky · 1 MI S of JCT Ky 1989 · Structure no. 084C00010N

Built
1975
50 years old
Condition
Fair
inspected July 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
77
2022 count
Owner
County
County Highway Agency

About this bridge

Johnson RD over Johnson Creek is a prestressed concrete box beam or girders - multiple carrying Johnson RD over Johnson Creek in Mercer County, Kentucky. It was built in 1975, so it is 50 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 77 vehicles a day, projected to reach 77 by 2042. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJohnson RD
CrossesJohnson Creek
Location1 MI S of JCT Ky 1989
RouteCounty Highway 1203
CountyMercer County
StateKentucky
Coordinates37.77417, -84.95556
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.5 US tons
Inventory rating47.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length29 ft (8.8 m)
Longest span26 ft (8 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2022)
Projected traffic77 by 2042
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 RD over Johnson Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Johnson RD over Johnson Creek 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 July 2022.

How much traffic does Johnson RD over Johnson Creek carry?

About 77 vehicles per day (2022 count).

How long is Johnson RD over Johnson Creek?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (8 m) and a deck 24 ft wide.

Who owns Johnson RD over Johnson Creek?

It is owned by the County Highway Agency.