US Bridges

CR 500N over Big Slough

Fair

Bartholomew County, Indiana · 00.07 E of US 31 · Structure no. 0300128

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
3 main spans
Daily traffic
190
2022 count
Owner
County
County Highway Agency

About this bridge

CR 500N over Big Slough is a prestressed concrete box beam or girders - multiple carrying CR 500N over Big Slough in Bartholomew County, Indiana. It was built in 1981, so it is 44 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 190 vehicles a day, roughly 5% of them trucks, projected to reach 280 by 2038. The structure is 60 ft (18.2 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 500N
CrossesBig Slough
Location00.07 E of US 31
RouteCounty Highway 210
CountyBartholomew County
StateIndiana
Coordinates39.27378, -85.94447
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating15.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2022)
Projected traffic280 by 2038
Trucks5%
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 CR 500N over Big Slough built?

It was built in 1981, making it 44 years old in 2025.

What condition is CR 500N over Big Slough 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 2024.

How much traffic does CR 500N over Big Slough carry?

About 190 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is CR 500N over Big Slough?

The structure is 60 ft (18.2 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns CR 500N over Big Slough?

It is owned by the County Highway Agency.