US Bridges

White-Coppess over Stillwater River

Fair

Darke County, Ohio · 68 MI E Duncan · Structure no. 1950975

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
2 main spans
Daily traffic
98
2015 count
Owner
County
County Highway Agency

About this bridge

White-Coppess over Stillwater River is a prestressed concrete box beam or girders - multiple carrying White-Coppess over Stillwater River in Darke County, Ohio. It was built in 1975, so it is 50 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 98 vehicles a day, roughly 7% of them trucks, projected to reach 136 by 2035. The structure is 76 ft (23.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWhite-Coppess
CrossesStillwater River
Location68 MI E Duncan
RouteCounty Highway 95
CountyDarke County
StateOhio
Coordinates40.22509, -84.65879
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 inspectionJuly 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 rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length76 ft (23.2 m)
Longest span36 ft (11 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2015)
Projected traffic136 by 2035
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 White-Coppess over Stillwater River built?

It was built in 1975, making it 50 years old in 2025.

What condition is White-Coppess over Stillwater River 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 July 2024.

How much traffic does White-Coppess over Stillwater River carry?

About 98 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is White-Coppess over Stillwater River?

The structure is 76 ft (23.2 m) long with a longest span of 36 ft (11 m) and a deck 20 ft wide.

Who owns White-Coppess over Stillwater River?

It is owned by the County Highway Agency.