US Bridges

C21 Casstown-Sidny over Gustin Ditch

Good

Miami County, Ohio · 0.3 Mi. S. of US RTE 36 · Structure no. 5531180

Built
2016
9 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
437
2015 count
Owner
County
County Highway Agency

About this bridge

C21 Casstown-Sidny over Gustin Ditch is a prestressed concrete box beam or girders - multiple carrying C21 Casstown-Sidny over Gustin Ditch in Miami County, Ohio. It was built in 2016, so it is 9 years old, younger than the Ohio average of 47.3 years.

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

It carries about 437 vehicles a day, roughly 8% of them trucks, projected to reach 607 by 2038. The structure is 41 ft (12.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesC21 Casstown-Sidny
CrossesGustin Ditch
Location0.3 Mi. S. of US RTE 36
RouteCounty Highway C0021
CountyMiami County
StateOhio
Coordinates40.14148, -84.13075
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating60.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic437 (2015)
Projected traffic607 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 C21 Casstown-Sidny over Gustin Ditch built?

It was built in 2016, making it 9 years old in 2025.

What condition is C21 Casstown-Sidny over Gustin 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 March 2024.

How much traffic does C21 Casstown-Sidny over Gustin Ditch carry?

About 437 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is C21 Casstown-Sidny over Gustin Ditch?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns C21 Casstown-Sidny over Gustin Ditch?

It is owned by the County Highway Agency.