SR 309 over Abandoned RR

Fair

Marion County, Ohio · 5.03 MI E of SR98 · Structure no. 5101891

Built: 1960; 65 years old
Condition: Fair; inspected November 2024
Type: Slab; Concrete Continuous
Length: 132 ft; 3 main spans
Daily traffic: 5,292; 2015 count
Owner: State; State Highway Agency

About this bridge

SR 309 over Abandoned RR is a concrete continuous slab carrying SR 309 over Abandoned RR in Marion County, Ohio. It was built in 1960, so it is 65 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 5,292 vehicles a day, roughly 14% of them trucks, projected to reach 7,345 by 2035. The structure is 132 ft (40.1 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

No coordinates are recorded for this structure.

CarriesSR 309

CrossesAbandoned RR

Location5.03 MI E of SR98

RouteState Highway 309

CountyMarion County

StateOhio

Functional classRural Minor Arterial

Condition and inspection

Fair

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

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	8 Very Good	No problems noted.

Last inspectionNovember 2024

Inspection intervalevery 12 months

Operating statusOpen, no restriction

ScourFoundations on dry land well above flood water elevations

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating56.4 US tons

Inventory rating43.5 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length132 ft (40.1 m)

Longest span50 ft (15.2 m)

Deck width46 ft (14 m)

Roadway width42 ft (12.7 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,292 (2015)

Projected traffic7,345 by 2035

Trucks14%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesRelief for waterway

Detour if closed9.9 mi (16 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 309 over Abandoned RR built?

It was built in 1960, making it 65 years old in 2025.

What condition is SR 309 over Abandoned RR 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 November 2024.

How much traffic does SR 309 over Abandoned RR carry?

About 5,292 vehicles per day (2015 count), of which roughly 14% are trucks.

How long is SR 309 over Abandoned RR?

The structure is 132 ft (40.1 m) long with a longest span of 50 ft (15.2 m) and a deck 46 ft wide.

Who owns SR 309 over Abandoned RR?

It is owned by the State Highway Agency.