US Bridges

SR-49 over Stillwater River

Good

Darke County, Ohio · 2.15MI.N. of Jct. SR-47 · Structure no. 1901249

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
1,544
2015 count
Owner
State
State Highway Agency

About this bridge

SR-49 over Stillwater River is a prestressed concrete box beam or girders - multiple carrying SR-49 over Stillwater River in Darke County, Ohio. It was built in 2006, so it is 19 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,544 vehicles a day, roughly 14% of them trucks, projected to reach 2,143 by 2035. The structure is 92 ft (28 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSR-49
CrossesStillwater River
Location2.15MI.N. of Jct. SR-47
RouteState Highway 49
CountyDarke County
StateOhio
Coordinates40.25238, -84.69471
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable 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 alignment7: Better than present minimum criteria
Operating rating105.4 US tons
Inventory rating67.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,544 (2015)
Projected traffic2,143 by 2035
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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-49 over Stillwater River built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR-49 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 July 2023.

How much traffic does SR-49 over Stillwater River carry?

About 1,544 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is SR-49 over Stillwater River?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 32 ft wide.

Who owns SR-49 over Stillwater River?

It is owned by the State Highway Agency.