US Bridges

John Rivers RD over Rock Bridge Branch

Fair

Christian County, Kentucky · 0.6 M. S. of Ky 109 · Structure no. 024C00046N

Built
1979
46 years old
Condition
Fair
inspected August 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
246
2010 count
Owner
County
County Highway Agency

About this bridge

John Rivers RD over Rock Bridge Branch is a prestressed concrete box beam or girders - multiple carrying John Rivers RD over Rock Bridge Branch in Christian County, Kentucky. It was built in 1979, so it is 46 years old, younger 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 246 vehicles a day, projected to reach 246 by 2030. The structure is 26 ft (7.9 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesJohn Rivers RD
CrossesRock Bridge Branch
Location0.6 M. S. of Ky 109
RouteCounty Highway 1233
CountyChristian County
StateKentucky
Coordinates36.79389, -87.44028
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating110 US tons
Inventory rating66.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2010)
Projected traffic246 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 John Rivers RD over Rock Bridge Branch built?

It was built in 1979, making it 46 years old in 2025.

What condition is John Rivers RD over Rock Bridge Branch 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 August 2021.

How much traffic does John Rivers RD over Rock Bridge Branch carry?

About 246 vehicles per day (2010 count).

How long is John Rivers RD over Rock Bridge Branch?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns John Rivers RD over Rock Bridge Branch?

It is owned by the County Highway Agency.