US Bridges

Pierce Mill RD over Rough River

Fair

Hardin County, Kentucky · 1.6 MI N of JCT Ky 84 · Structure no. 047C00045N

Built
1979
46 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
132
2009 count
Owner
County
County Highway Agency

About this bridge

Pierce Mill RD over Rough River is a prestressed concrete box beam or girders - multiple carrying Pierce Mill RD over Rough River in Hardin 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 132 vehicles a day, projected to reach 132 by 2029. The structure is 134 ft (40.8 m) long and 24 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesPierce Mill RD
CrossesRough River
Location1.6 MI N of JCT Ky 84
RouteCounty Highway 1338
CountyHardin County
StateKentucky
Coordinates37.63417, -86.205
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100.4 US tons
Inventory rating60.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span74 ft (22.6 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2009)
Projected traffic132 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Pierce Mill RD over Rough River built?

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

What condition is Pierce Mill RD over Rough River 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 May 2023.

How much traffic does Pierce Mill RD over Rough River carry?

About 132 vehicles per day (2009 count).

How long is Pierce Mill RD over Rough River?

The structure is 134 ft (40.8 m) long with a longest span of 74 ft (22.6 m) and a deck 24 ft wide.

Who owns Pierce Mill RD over Rough River?

It is owned by the County Highway Agency.