US Bridges

SR-47 over Stillwater River

Good

Darke County, Ohio · 1.55MI.E. of Jct. SR-118 · Structure no. 1900668

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
123 ft
3 main spans
Daily traffic
1,961
2015 count
Owner
State
State Highway Agency

About this bridge

SR-47 over Stillwater River is a steel continuous stringer/multi-beam or girder carrying SR-47 over Stillwater River in Darke County, Ohio. It was built in 1965, so it is 60 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,961 vehicles a day, roughly 11% of them trucks, projected to reach 2,722 by 2035. The structure is 123 ft (37.5 m) long and 40 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesSR-47
CrossesStillwater River
Location1.55MI.E. of Jct. SR-118
RouteState Highway 47
CountyDarke County
StateOhio
Coordinates40.21688, -84.6084
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.7 US tons
Inventory rating32.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length123 ft (37.5 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,961 (2015)
Projected traffic2,722 by 2035
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-47 over Stillwater River built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR-47 over Stillwater River 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 May 2023.

How much traffic does SR-47 over Stillwater River carry?

About 1,961 vehicles per day (2015 count), of which roughly 11% are trucks.

How long is SR-47 over Stillwater River?

The structure is 123 ft (37.5 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns SR-47 over Stillwater River?

It is owned by the State Highway Agency.