US Bridges

Tho TR 81 over Royer Ditch

Good

Seneca County, Ohio · 0.930 MI North of CR 46 · Structure no. 7450257

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Frame
Concrete
Length
29 ft
1 main span
Daily traffic
65
2015 count
Owner
County
County Highway Agency

About this bridge

Tho TR 81 over Royer Ditch is a concrete frame carrying Tho TR 81 over Royer Ditch in Seneca County, Ohio. It was built in 2005, so it is 20 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 65 vehicles a day, roughly 8% of them trucks, projected to reach 90 by 2035. The structure is 29 ft (8.8 m) long and 44 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesTho TR 81
CrossesRoyer Ditch
Location0.930 MI North of CR 46
RouteCounty Highway T0081
CountySeneca County
StateOhio
Coordinates41.20333, -82.89833
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2015)
Projected traffic90 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Tho TR 81 over Royer Ditch built?

It was built in 2005, making it 20 years old in 2025.

What condition is Tho TR 81 over Royer Ditch 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 Tho TR 81 over Royer Ditch carry?

About 65 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Tho TR 81 over Royer Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 44 ft wide.

Who owns Tho TR 81 over Royer Ditch?

It is owned by the County Highway Agency.