US Bridges

Otterbein-Ithaca over Millers Fork Ditch

Fair

Darke County, Ohio · .24 MI E Loop · Structure no. 1933957

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
108
2015 count
Owner
County
County Highway Agency

About this bridge

Otterbein-Ithaca over Millers Fork Ditch is a prestressed concrete box beam or girders - multiple carrying Otterbein-Ithaca over Millers Fork Ditch in Darke County, Ohio. It was built in 1977, so it is 48 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 108 vehicles a day, roughly 7% of them trucks, projected to reach 150 by 2035. The structure is 51 ft (15.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOtterbein-Ithaca
CrossesMillers Fork Ditch
Location.24 MI E Loop
RouteCounty Highway T0048
CountyDarke County
StateOhio
Coordinates39.94627, -84.57353
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length51 ft (15.5 m)
Longest span46 ft (14 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2015)
Projected traffic150 by 2035
Trucks7%
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 Otterbein-Ithaca over Millers Fork Ditch built?

It was built in 1977, making it 48 years old in 2025.

What condition is Otterbein-Ithaca over Millers Fork 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 September 2024.

How much traffic does Otterbein-Ithaca over Millers Fork Ditch carry?

About 108 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Otterbein-Ithaca over Millers Fork Ditch?

The structure is 51 ft (15.5 m) long with a longest span of 46 ft (14 m) and a deck 24 ft wide.

Who owns Otterbein-Ithaca over Millers Fork Ditch?

It is owned by the County Highway Agency.