US Bridges

Township Road 74 over Little Tymochtee

Fair

Hardin County, Ohio · .5 MI E of JCT of CR 195 · Structure no. 3342964

Built
1915
110 years old, rebuilt 1960
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
324
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 74 over Little Tymochtee is a prestressed concrete box beam or girders - multiple carrying Township Road 74 over Little Tymochtee in Hardin County, Ohio. It was built in 1915 and reconstructed in 1960, so it is 110 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 45 ft (13.7 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTownship Road 74
CrossesLittle Tymochtee
Location.5 MI E of JCT of CR 195
RouteCounty Highway 74
CountyHardin County
StateOhio
Coordinates40.72377, -83.52811
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.8 US tons
Inventory rating52.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2015)
Projected traffic450 by 2035
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 74 over Little Tymochtee built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1960.

What condition is Township Road 74 over Little Tymochtee in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Township Road 74 over Little Tymochtee carry?

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

How long is Township Road 74 over Little Tymochtee?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 18 ft wide.

Who owns Township Road 74 over Little Tymochtee?

It is owned by the County Highway Agency.