US Bridges

Seibert Road over Saint Marys River

Fair

Auglaize County, Ohio · 0.2 Mi. N. of C.R. 66A · Structure no. 0634638

Built
1990
35 years old
Condition
Fair
inspected April 2024
Type
Truss - Thru
Steel
Length
150 ft
1 main span
Daily traffic
351
2022 count
Owner
County
County Highway Agency

About this bridge

Seibert Road over Saint Marys River is a steel truss - thru carrying Seibert Road over Saint Marys River in Auglaize County, Ohio. It was built in 1990, so it is 35 years old, younger 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 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2045. The structure is 150 ft (45.7 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSeibert Road
CrossesSaint Marys River
Location0.2 Mi. N. of C.R. 66A
RouteCounty Highway T0047
CountyAuglaize County
StateOhio
Coordinates40.60738, -84.38187
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 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 rating36.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length150 ft (45.7 m)
Longest span144 ft (43.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2022)
Projected traffic487 by 2045
Trucks7%
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 Seibert Road over Saint Marys River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Seibert Road over Saint Marys 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 April 2024.

How much traffic does Seibert Road over Saint Marys River carry?

About 351 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Seibert Road over Saint Marys River?

The structure is 150 ft (45.7 m) long with a longest span of 144 ft (43.9 m) and a deck 29 ft wide.

Who owns Seibert Road over Saint Marys River?

It is owned by the County Highway Agency.