US Bridges

TR 178 over Fn Johnson Ditch

FairPosted for load

Logan County, Ohio · .46 M N of 287 · Structure no. 4646746

Built
1933
92 years old, rebuilt 1976
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
49
2015 count
Owner
County
County Highway Agency

About this bridge

TR 178 over Fn Johnson Ditch is a steel stringer/multi-beam or girder carrying TR 178 over Fn Johnson Ditch in Logan County, Ohio. It was built in 1933 and reconstructed in 1976, so it is 92 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. Its operating status is: posted for load restriction.

It carries about 49 vehicles a day, roughly 8% of them trucks, projected to reach 68 by 2035. The structure is 60 ft (18.3 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 178
CrossesFn Johnson Ditch
Location.46 M N of 287
RouteCounty Highway T0178
CountyLogan County
StateOhio
Coordinates40.27167, -83.68
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating28.5 US tons
Inventory rating14.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2015)
Projected traffic68 by 2035
Trucks8%
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 TR 178 over Fn Johnson Ditch built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1976.

What condition is TR 178 over Fn Johnson Ditch 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 January 2025.

How much traffic does TR 178 over Fn Johnson Ditch carry?

About 49 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is TR 178 over Fn Johnson Ditch?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 18 ft wide.

Who owns TR 178 over Fn Johnson Ditch?

It is owned by the County Highway Agency.