US Bridges

Township Road 30 over Mckinstry Ditch

Good

Hardin County, Ohio · .5 MI E of JCT of CR 95 · Structure no. 3336468

Built
2005
20 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
32 ft
1 main span
Daily traffic
324
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 30 over Mckinstry Ditch is a concrete box beam or girders - multiple carrying Township Road 30 over Mckinstry Ditch in Hardin County, Ohio. It was built in 2005, so it is 20 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 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 32 ft (9.8 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTownship Road 30
CrossesMckinstry Ditch
Location.5 MI E of JCT of CR 95
RouteCounty Highway 30
CountyHardin County
StateOhio
Coordinates40.7907, -83.71893
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 protection7 GoodSome minor problems.
Last inspectionJune 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 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 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 width28 ft (8.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2015)
Projected traffic450 by 2035
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 30 over Mckinstry Ditch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Township Road 30 over Mckinstry 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 June 2024.

How much traffic does Township Road 30 over Mckinstry Ditch carry?

About 324 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township Road 30 over Mckinstry Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns Township Road 30 over Mckinstry Ditch?

It is owned by the County Highway Agency.