US Bridges

Schroder over Stillwater River

Good

Darke County, Ohio · .63 MI N SR 121 · Structure no. 1946676

Built
1981
44 years old
Condition
Good
inspected September 2024
Type
Truss - Thru
Steel
Length
115 ft
1 main span
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Schroder over Stillwater River is a steel truss - thru carrying Schroder over Stillwater River in Darke County, Ohio. It was built in 1981, so it is 44 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 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 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2035. The structure is 115 ft (35.1 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSchroder
CrossesStillwater River
Location.63 MI N SR 121
RouteCounty Highway 161
CountyDarke County
StateOhio
Coordinates40.17497, -84.5541
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span109 ft (33.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2015)
Projected traffic487 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Schroder over Stillwater River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Schroder 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 September 2024.

How much traffic does Schroder over Stillwater River carry?

About 351 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Schroder over Stillwater River?

The structure is 115 ft (35.1 m) long with a longest span of 109 ft (33.2 m) and a deck 24 ft wide.

Who owns Schroder over Stillwater River?

It is owned by the County Highway Agency.