US Bridges

CR 600 East over Bolley Ditch

Good

Miami County, Indiana · 0.70 N of CR 1400 N · Structure no. 5200008

Built
2004
21 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
100
2011 count
Owner
County
County Highway Agency

About this bridge

CR 600 East over Bolley Ditch is a prestressed concrete box beam or girders - multiple carrying CR 600 East over Bolley Ditch in Miami County, Indiana. It was built in 2004, so it is 21 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2031. The structure is 38 ft (11.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 600 East
CrossesBolley Ditch
Location0.70 N of CR 1400 N
RouteCounty Highway 81
StateIndiana
Coordinates40.98179, -85.96522
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length38 ft (11.5 m)
Longest span33 ft (10.2 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2011)
Projected traffic150 by 2031
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 600 East over Bolley Ditch built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 600 East over Bolley Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does CR 600 East over Bolley Ditch carry?

About 100 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is CR 600 East over Bolley Ditch?

The structure is 38 ft (11.5 m) long with a longest span of 33 ft (10.2 m) and a deck 24 ft wide.

Who owns CR 600 East over Bolley Ditch?

It is owned by the County Highway Agency.