US Bridges

Township Road 55 over Grass Run

Poor

Hardin County, Ohio · .3 MI N of JCT of CR 50 · Structure no. 3348938

Built
1934
91 years old, rebuilt 1978
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
228
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 55 over Grass Run is a steel stringer/multi-beam or girder carrying Township Road 55 over Grass Run in Hardin County, Ohio. It was built in 1934 and reconstructed in 1978, so it is 91 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 228 vehicles a day, roughly 5% of them trucks, projected to reach 316 by 2035. The structure is 30 ft (9.1 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTownship Road 55
CrossesGrass Run
Location.3 MI N of JCT of CR 50
RouteCounty Highway T0055
CountyHardin County
StateOhio
Coordinates40.76625, -83.80404
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width21 ft (6.3 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic228 (2015)
Projected traffic316 by 2035
Trucks5%
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 55 over Grass Run built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1978.

What condition is Township Road 55 over Grass Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Township Road 55 over Grass Run carry?

About 228 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Township Road 55 over Grass Run?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 21 ft wide.

Who owns Township Road 55 over Grass Run?

It is owned by the County Highway Agency.