US Bridges

Tri-Township Road over Branch of Koop Creek

Good

Auglaize County, Ohio · 1.3 Mi. N. of S.R. 119 · Structure no. 0631493

Built
1970
55 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
898
2019 count
Owner
County
County Highway Agency

About this bridge

Tri-Township Road over Branch of Koop Creek is a prestressed concrete box beam or girders - multiple carrying Tri-Township Road over Branch of Koop Creek in Auglaize County, Ohio. It was built in 1970, so it is 55 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.

It carries about 898 vehicles a day, roughly 8% of them trucks, projected to reach 1,101 by 2045. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTri-Township Road
CrossesBranch of Koop Creek
Location1.3 Mi. N. of S.R. 119
RouteCounty Highway T0031
StateOhio
Coordinates40.45606, -84.41497
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span33 ft (10 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic898 (2019)
Projected traffic1,101 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 Tri-Township Road over Branch of Koop Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Tri-Township Road over Branch of Koop 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 August 2023.

How much traffic does Tri-Township Road over Branch of Koop Creek carry?

About 898 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Tri-Township Road over Branch of Koop Creek?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10 m) and a deck 26 ft wide.

Who owns Tri-Township Road over Branch of Koop Creek?

It is owned by the County Highway Agency.