US Bridges

St. Marys-Kossuth over Sixmile Creek

Good

Auglaize County, Ohio · 1.2 E. of S.R. 66 · Structure no. 0634875

Built
1980
45 years old, rebuilt 2012
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
60 ft
2 main spans
Daily traffic
797
2018 count
Owner
County
County Highway Agency

About this bridge

St. Marys-Kossuth over Sixmile Creek is a concrete box beam or girders - multiple carrying St. Marys-Kossuth over Sixmile Creek in Auglaize County, Ohio. It was built in 1980 and reconstructed in 2012, so it is 45 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 797 vehicles a day, roughly 8% of them trucks, projected to reach 1,106 by 2045. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSt. Marys-Kossuth
CrossesSixmile Creek
Location1.2 E. of S.R. 66
RouteCounty Highway C184A
CountyAuglaize County
StateOhio
Coordinates40.61938, -84.34257
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
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 alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span29 ft (8.7 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic797 (2018)
Projected traffic1,106 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 St. Marys-Kossuth over Sixmile Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2012.

What condition is St. Marys-Kossuth over Sixmile Creek 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 April 2023.

How much traffic does St. Marys-Kossuth over Sixmile Creek carry?

About 797 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is St. Marys-Kossuth over Sixmile Creek?

The structure is 60 ft (18.3 m) long with a longest span of 29 ft (8.7 m) and a deck 27 ft wide.

Who owns St. Marys-Kossuth over Sixmile Creek?

It is owned by the County Highway Agency.