US Bridges

Township Road 580 over Muddy Fork

Fair

Ashland County, Ohio · 17 MI NE of CR 620 · Structure no. 0331821

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
44 ft
1 main span
Daily traffic
162
2013 count
Owner
County
County Highway Agency

About this bridge

Township Road 580 over Muddy Fork is a steel girder and floorbeam system carrying Township Road 580 over Muddy Fork in Ashland County, Ohio. It was built in 1979, so it is 46 years old, younger 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 5 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 162 vehicles a day, roughly 9% of them trucks, projected to reach 225 by 2033. The structure is 44 ft (13.4 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTownship Road 580
CrossesMuddy Fork
Location17 MI NE of CR 620
RouteCounty Highway T0580
CountyAshland County
StateOhio
Coordinates40.97356, -82.13909
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating50 US tons
Inventory rating28.5 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162 (2013)
Projected traffic225 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 580 over Muddy Fork built?

It was built in 1979, making it 46 years old in 2025.

What condition is Township Road 580 over Muddy 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 September 2024.

How much traffic does Township Road 580 over Muddy Fork carry?

About 162 vehicles per day (2013 count), of which roughly 9% are trucks.

How long is Township Road 580 over Muddy Fork?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 20 ft wide.

Who owns Township Road 580 over Muddy Fork?

It is owned by the County Highway Agency.