US Bridges

Marathon Ednton over Grassy Fork

Poor

Clermont County, Ohio · Marathon Edenton Road · Structure no. 1358375

Built
1925
100 years old, rebuilt 1987
Condition
Poor
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
378
2015 count
Owner
County
County Highway Agency

About this bridge

Marathon Ednton over Grassy Fork is a prestressed concrete box beam or girders - multiple carrying Marathon Ednton over Grassy Fork in Clermont County, Ohio. It was built in 1925 and reconstructed in 1987, so it is 100 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 378 vehicles a day, roughly 8% of them trucks, projected to reach 525 by 2038. The structure is 45 ft (13.7 m) long and 21 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMarathon Ednton
CrossesGrassy Fork
LocationMarathon Edenton Road
RouteCounty Highway C0082
StateOhio
Coordinates39.16633, -84.00928
Functional classRural Local

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 rating48.2 US tons
Inventory rating28.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span40 ft (12.2 m)
Deck width21 ft (6.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic378 (2015)
Projected traffic525 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Marathon Ednton over Grassy Fork built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1987.

What condition is Marathon Ednton over Grassy Fork 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 June 2024.

How much traffic does Marathon Ednton over Grassy Fork carry?

About 378 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Marathon Ednton over Grassy Fork?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.2 m) and a deck 21 ft wide.

Who owns Marathon Ednton over Grassy Fork?

It is owned by the County Highway Agency.