US Bridges

Township Road 100 over Oates Ditch

Good

Hardin County, Ohio · .3 MI W of JCT of SR 68 · Structure no. 3341615

Built
2001
24 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
32 ft
1 main span
Daily traffic
54
2018 count
Owner
County
County Highway Agency

About this bridge

Township Road 100 over Oates Ditch is a concrete box beam or girders - multiple carrying Township Road 100 over Oates Ditch in Hardin County, Ohio. It was built in 2001, so it is 24 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 54 vehicles a day, roughly 7% of them trucks, projected to reach 75 by 2038. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTownship Road 100
CrossesOates Ditch
Location.3 MI W of JCT of SR 68
RouteCounty Highway T0100
CountyHardin County
StateOhio
Coordinates40.68933, -83.62235
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2018)
Projected traffic75 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Township Road 100 over Oates Ditch built?

It was built in 2001, making it 24 years old in 2025.

What condition is Township Road 100 over Oates 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 2024.

How much traffic does Township Road 100 over Oates Ditch carry?

About 54 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is Township Road 100 over Oates Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns Township Road 100 over Oates Ditch?

It is owned by the County Highway Agency.