US Bridges

Willowdell RD over Simon Joint Ditch

Fair

Darke County, Ohio · .05 MI S Althoff · Structure no. 1959204

Built
1961
64 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
477
2015 count
Owner
County
County Highway Agency

About this bridge

Willowdell RD over Simon Joint Ditch is a concrete slab carrying Willowdell RD over Simon Joint Ditch in Darke County, Ohio. It was built in 1961, so it is 64 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 477 vehicles a day, roughly 8% of them trucks, projected to reach 662 by 2035. The structure is 27 ft (8.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesWillowdell RD
CrossesSimon Joint Ditch
Location.05 MI S Althoff
RouteCounty Highway C0102
CountyDarke County
StateOhio
Coordinates40.29114, -84.45616
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2015)
Projected traffic662 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-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 Willowdell RD over Simon Joint Ditch built?

It was built in 1961, making it 64 years old in 2025.

What condition is Willowdell RD over Simon Joint 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 August 2024.

How much traffic does Willowdell RD over Simon Joint Ditch carry?

About 477 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Willowdell RD over Simon Joint Ditch?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns Willowdell RD over Simon Joint Ditch?

It is owned by the County Highway Agency.