US Bridges

County Road 30 over Br over Carroll Ditch

Fair

Marion County, Ohio · .4 MI N of JCT TR 26 · Structure no. 5130751

Built
1900
125 years old, rebuilt 2007
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
46
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 30 over Br over Carroll Ditch is a steel stringer/multi-beam or girder carrying County Road 30 over Br over Carroll Ditch in Marion County, Ohio. It was built in 1900 and reconstructed in 2007, so it is 125 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 5 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 46 vehicles a day, roughly 8% of them trucks, projected to reach 534 by 2035. The structure is 30 ft (9.1 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 30
CrossesBr over Carroll Ditch
Location.4 MI N of JCT TR 26
RouteCounty Highway 30
CountyMarion County
StateOhio
Coordinates40.675, -83.325
Functional classRural 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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2015)
Projected traffic534 by 2035
Trucks8%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 County Road 30 over Br over Carroll Ditch built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2007.

What condition is County Road 30 over Br over Carroll Ditch 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 September 2024.

How much traffic does County Road 30 over Br over Carroll Ditch carry?

About 46 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is County Road 30 over Br over Carroll Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 18 ft wide.

Who owns County Road 30 over Br over Carroll Ditch?

It is owned by the County Highway Agency.