US Bridges

Derthick RD over Mud Fork

FairPosted for load

Athens County, Ohio · 1 MI South of SR 78 · Structure no. 0540900

Built
1951
74 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
60
2015 count
Owner
County
County Highway Agency

About this bridge

Derthick RD over Mud Fork is a concrete tee beam carrying Derthick RD over Mud Fork in Athens County, Ohio. It was built in 1951, so it is 74 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 5 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 60 vehicles a day, roughly 8% of them trucks, projected to reach 83 by 2042. The structure is 31 ft (9.4 m) long and 12 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesDerthick RD
CrossesMud Fork
Location1 MI South of SR 78
RouteCounty Highway T1333
CountyAthens County
StateOhio
Coordinates39.49749, -82.10435
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.
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 inspectionNovember 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.2 US tons
Inventory rating15.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2015)
Projected traffic83 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Derthick RD over Mud Fork built?

It was built in 1951, making it 74 years old in 2025.

What condition is Derthick RD over Mud 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 Derthick RD over Mud Fork carry?

About 60 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Derthick RD over Mud Fork?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 12 ft wide.

Who owns Derthick RD over Mud Fork?

It is owned by the County Highway Agency.