US Bridges

Township Road 9A over Br over Flat Run

Good

Marion County, Ohio · .1 S of JCT SR 309 · Structure no. 5133602

Built
2002
23 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
1,081
1998 count
Owner
County
County Highway Agency

About this bridge

Township Road 9A over Br over Flat Run is a prestressed concrete box beam or girders - multiple carrying Township Road 9A over Br over Flat Run in Marion County, Ohio. It was built in 2002, so it is 23 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 1,081 vehicles a day, projected to reach 1,500 by 2018. The structure is 93 ft (28.3 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesTownship Road 9A
CrossesBr over Flat Run
Location.1 S of JCT SR 309
RouteCounty Highway 9
CountyMarion County
StateOhio
Coordinates40.66444, -82.85889
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length93 ft (28.3 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,081 (1998)
Projected traffic1,500 by 2018
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Township Road 9A over Br over Flat Run built?

It was built in 2002, making it 23 years old in 2025.

What condition is Township Road 9A over Br over Flat Run 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 August 2024.

How much traffic does Township Road 9A over Br over Flat Run carry?

About 1,081 vehicles per day (1998 count).

How long is Township Road 9A over Br over Flat Run?

The structure is 93 ft (28.3 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Township Road 9A over Br over Flat Run?

It is owned by the County Highway Agency.