US Bridges

CR 500 South over Thompson Ditch

Fair

Shelby County, Indiana · 00.20 W of CR 25 E · Structure no. 7300077

Built
1999
26 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
125
2021 count
Owner
County
County Highway Agency

About this bridge

CR 500 South over Thompson Ditch is a prestressed concrete box beam or girders - multiple carrying CR 500 South over Thompson Ditch in Shelby County, Indiana. It was built in 1999, so it is 26 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 125 vehicles a day, roughly 5% of them trucks, projected to reach 225 by 2041. The structure is 37 ft (11.2 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCR 500 South
CrossesThompson Ditch
Location00.20 W of CR 25 E
RouteCounty Highway 26
StateIndiana
Coordinates39.45287, -85.77887
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length37 ft (11.2 m)
Longest span34 ft (10.3 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2021)
Projected traffic225 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 CR 500 South over Thompson Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is CR 500 South over Thompson Ditch 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 October 2023.

How much traffic does CR 500 South over Thompson Ditch carry?

About 125 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is CR 500 South over Thompson Ditch?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.3 m) and a deck 24 ft wide.

Who owns CR 500 South over Thompson Ditch?

It is owned by the County Highway Agency.