US Bridges

Conkle RD over Big Run Ditch

Good

Defiance County, Ohio · .3 MI SW of Def-Wms Lo Li · Structure no. 2047004

Built
1988
37 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
86 ft
3 main spans
Daily traffic
253
2015 count
Owner
County
County Highway Agency

About this bridge

Conkle RD over Big Run Ditch is a prestressed concrete box beam or girders - multiple carrying Conkle RD over Big Run Ditch in Defiance County, Ohio. It was built in 1988, so it is 37 years old, younger than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 253 vehicles a day, roughly 8% of them trucks, projected to reach 351 by 2035. The structure is 86 ft (26.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesConkle RD
CrossesBig Run Ditch
Location.3 MI SW of Def-Wms Lo Li
RouteCounty Highway 105
StateOhio
Coordinates41.42326, -84.78181
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length86 ft (26.2 m)
Longest span27 ft (8.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic253 (2015)
Projected traffic351 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 Conkle RD over Big Run Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Conkle RD over Big Run Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Conkle RD over Big Run Ditch carry?

About 253 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Conkle RD over Big Run Ditch?

The structure is 86 ft (26.2 m) long with a longest span of 27 ft (8.2 m) and a deck 28 ft wide.

Who owns Conkle RD over Big Run Ditch?

It is owned by the County Highway Agency.