US Bridges

Steffen over Stillwater River

Good

Darke County, Ohio · .30 MI S Beams-Webster · Structure no. 1946773

Built
1989
36 years old
Condition
Good
inspected September 2024
Type
Truss - Thru
Steel
Length
122 ft
1 main span
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Steffen over Stillwater River is a steel truss - thru carrying Steffen over Stillwater River in Darke County, Ohio. It was built in 1989, so it is 36 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 8 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 122 ft (37.2 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSteffen
CrossesStillwater River
Location.30 MI S Beams-Webster
RouteCounty Highway T0225
CountyDarke County
StateOhio
Coordinates40.18351, -84.56762
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.
Superstructure8 Very GoodNo problems noted.
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 within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating28.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length122 ft (37.2 m)
Longest span114 ft (34.7 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 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 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 Steffen over Stillwater River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Steffen 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 Steffen over Stillwater River carry?

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

How long is Steffen over Stillwater River?

The structure is 122 ft (37.2 m) long with a longest span of 114 ft (34.7 m) and a deck 22 ft wide.

Who owns Steffen over Stillwater River?

It is owned by the County Highway Agency.