US Bridges

TH40A over Sandusky River

GoodPosted for load

Wyandot County, Ohio · 0.20 Miles North of TH37A · Structure no. 8834350

Built
1900
125 years old, rebuilt 2018
Condition
Good
inspected November 2024
Type
Truss - Thru
Wood or Timber
Length
172 ft
1 main span
Daily traffic
95
2015 count
Owner
County
County Highway Agency

About this bridge

TH40A over Sandusky River is a wood or timber truss - thru carrying TH40A over Sandusky River in Wyandot County, Ohio. It was built in 1900 and reconstructed in 2018, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 95 vehicles a day, roughly 1% of them trucks, projected to reach 132 by 2035. The structure is 172 ft (52.4 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTH40A
CrossesSandusky River
Location0.20 Miles North of TH37A
RouteCounty Highway T0040
CountyWyandot County
StateOhio
Coordinates40.90294, -83.24449
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length172 ft (52.4 m)
Longest span162 ft (49.4 m)
Deck width20 ft (6.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic95 (2015)
Projected traffic132 by 2035
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TH40A over Sandusky River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2018.

What condition is TH40A over Sandusky River 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 November 2024.

How much traffic does TH40A over Sandusky River carry?

About 95 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is TH40A over Sandusky River?

The structure is 172 ft (52.4 m) long with a longest span of 162 ft (49.4 m) and a deck 20 ft wide.

Who owns TH40A over Sandusky River?

It is owned by the County Highway Agency.