US Bridges

Experiment Farm over Drake Ditch

Good

Miami County, Ohio · 1.72 N of CR33 · Structure no. 5532132

Built
1993
32 years old, rebuilt 2016
Condition
Good
inspected January 2025
Type
Tee Beam
Concrete
Length
24 ft
1 main span
Daily traffic
3,368
2015 count
Owner
County
County Highway Agency

About this bridge

Experiment Farm over Drake Ditch is a concrete tee beam carrying Experiment Farm over Drake Ditch in Miami County, Ohio. It was built in 1993 and reconstructed in 2016, so it is 32 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 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 3,368 vehicles a day, roughly 6% of them trucks, projected to reach 4,675 by 2034. The structure is 24 ft (7.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesExperiment Farm
CrossesDrake Ditch
Location1.72 N of CR33
RouteCounty Highway C0036
CountyMiami County
StateOhio
Coordinates40.10167, -84.24
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating103.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width33 ft (10.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,368 (2015)
Projected traffic4,675 by 2034
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Experiment Farm over Drake Ditch built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2016.

What condition is Experiment Farm over Drake 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 January 2025.

How much traffic does Experiment Farm over Drake Ditch carry?

About 3,368 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is Experiment Farm over Drake Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 33 ft wide.

Who owns Experiment Farm over Drake Ditch?

It is owned by the County Highway Agency.