US Bridges

SR118 over Stillwater River

Good

Darke County, Ohio · .16 Mi. N. Jct. SR-47 · Structure no. 1901591

Built
1962
63 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
2,931
2015 count
Owner
State
State Highway Agency

About this bridge

SR118 over Stillwater River is a concrete continuous slab carrying SR118 over Stillwater River in Darke County, Ohio. It was built in 1962, so it is 63 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 2,931 vehicles a day, roughly 6% of them trucks, projected to reach 4,068 by 2035. The structure is 101 ft (30.8 m) long and 53 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR118
CrossesStillwater River
Location.16 Mi. N. Jct. SR-47
RouteState Highway 118
StateOhio
Coordinates40.21658, -84.63693
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length101 ft (30.8 m)
Longest span38 ft (11.6 m)
Deck width53 ft (16.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,931 (2015)
Projected traffic4,068 by 2035
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 SR118 over Stillwater River built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR118 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 SR118 over Stillwater River carry?

About 2,931 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is SR118 over Stillwater River?

The structure is 101 ft (30.8 m) long with a longest span of 38 ft (11.6 m) and a deck 53 ft wide.

Who owns SR118 over Stillwater River?

It is owned by the State Highway Agency.