US Bridges

Thornton RD over W Fk Indian-Kentuck CR

Fair

Jefferson County, Indiana · 00.38 E West Fork RD · Structure no. 3900091

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Thornton RD over W Fk Indian-Kentuck CR is a concrete culvert carrying Thornton RD over W Fk Indian-Kentuck CR in Jefferson County, Indiana. It was built in 1989, so it is 36 years old, younger than the Indiana 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 100 vehicles a day, roughly 4% of them trucks, projected to reach 150 by 2040. The structure is 26 ft (8 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesThornton RD
CrossesW Fk Indian-Kentuck CR
Location00.38 E West Fork RD
RouteCounty Highway 46
CountyJefferson County
StateIndiana
Coordinates38.88351, -85.33569
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (8 m)
Longest span22 ft (6.8 m)
Deck width65 ft (19.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic150 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Thornton RD over W Fk Indian-Kentuck CR built?

It was built in 1989, making it 36 years old in 2025.

What condition is Thornton RD over W Fk Indian-Kentuck CR 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 November 2024.

How much traffic does Thornton RD over W Fk Indian-Kentuck CR carry?

About 100 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Thornton RD over W Fk Indian-Kentuck CR?

The structure is 26 ft (8 m) long with a longest span of 22 ft (6.8 m) and a deck 65 ft wide.

Who owns Thornton RD over W Fk Indian-Kentuck CR?

It is owned by the County Highway Agency.