US Bridges

Township RD 78 over Middle Fork

Fair

Harrison County, Ohio · 0.1 MI S of JCT CR 15 · Structure no. 3431339

Built
1900
125 years old, rebuilt 1997
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
209
2015 count
Owner
County
County Highway Agency

About this bridge

Township RD 78 over Middle Fork is a prestressed concrete box beam or girders - multiple carrying Township RD 78 over Middle Fork in Harrison County, Ohio. It was built in 1900 and reconstructed in 1997, so it is 125 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 209 vehicles a day, roughly 7% of them trucks, projected to reach 290 by 2035. The structure is 73 ft (22.3 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesTownship RD 78
CrossesMiddle Fork
Location0.1 MI S of JCT CR 15
RouteCounty Highway T0078
CountyHarrison County
StateOhio
Coordinates40.23472, -80.93235
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span66 ft (20.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2015)
Projected traffic290 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$212,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Township RD 78 over Middle Fork built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1997.

What condition is Township RD 78 over Middle Fork 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 November 2024.

How much traffic does Township RD 78 over Middle Fork carry?

About 209 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township RD 78 over Middle Fork?

The structure is 73 ft (22.3 m) long with a longest span of 66 ft (20.1 m) and a deck 24 ft wide.

Who owns Township RD 78 over Middle Fork?

It is owned by the County Highway Agency.