US Bridges

SR 81 over The Outlet

Good

Hardin County, Ohio · West Corp of Patterson · Structure no. 3301214

Built
1995
30 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
695
2015 count
Owner
State
State Highway Agency

About this bridge

SR 81 over The Outlet is a prestressed concrete box beam or girders - multiple carrying SR 81 over The Outlet in Hardin County, Ohio. It was built in 1995, so it is 30 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 695 vehicles a day, roughly 5% of them trucks, projected to reach 965 by 2035. The structure is 56 ft (17.1 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 81
CrossesThe Outlet
LocationWest Corp of Patterson
RouteState Highway 81
CountyHardin County
StateOhio
Coordinates40.78179, -83.52992
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating64.3 US tons
Inventory rating32.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length56 ft (17.1 m)
Longest span55 ft (16.8 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic695 (2015)
Projected traffic965 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 81 over The Outlet built?

It was built in 1995, making it 30 years old in 2025.

What condition is SR 81 over The Outlet 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 June 2024.

How much traffic does SR 81 over The Outlet carry?

About 695 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is SR 81 over The Outlet?

The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 32 ft wide.

Who owns SR 81 over The Outlet?

It is owned by the State Highway Agency.