US Bridges

Martindale C0012 over Stillwater River

Fair

Montgomery County, Ohio · .6 Miles East of SR48 · Structure no. 5730252

Built
1971
54 years old, rebuilt 1986
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
225 ft
3 main spans
Daily traffic
3,352
2019 count
Owner
County
County Highway Agency

About this bridge

Martindale C0012 over Stillwater River is a steel continuous stringer/multi-beam or girder carrying Martindale C0012 over Stillwater River in Montgomery County, Ohio. It was built in 1971 and reconstructed in 1986, so it is 54 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,352 vehicles a day, roughly 4% of them trucks, projected to reach 5,170 by 2036. The structure is 225 ft (68.6 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMartindale C0012
CrossesStillwater River
Location.6 Miles East of SR48
RouteCounty Highway 12
StateOhio
Coordinates39.89843, -84.29359
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating71.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span85 ft (25.9 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,352 (2019)
Projected traffic5,170 by 2036
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Martindale C0012 over Stillwater River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1986.

What condition is Martindale C0012 over Stillwater River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Martindale C0012 over Stillwater River carry?

About 3,352 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Martindale C0012 over Stillwater River?

The structure is 225 ft (68.6 m) long with a longest span of 85 ft (25.9 m) and a deck 28 ft wide.

Who owns Martindale C0012 over Stillwater River?

It is owned by the County Highway Agency.