US Bridges

SR-66 over Koop Creek

Good

Auglaize County, Ohio · 1.2 Mi. S. Jct. SR-219 · Structure no. 0600881

Built
2011
14 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
76 ft
3 main spans
Daily traffic
6,435
2015 count
Owner
State
State Highway Agency

About this bridge

SR-66 over Koop Creek is a concrete continuous slab carrying SR-66 over Koop Creek in Auglaize County, Ohio. It was built in 2011, so it is 14 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 6,435 vehicles a day, roughly 10% of them trucks, projected to reach 8,932 by 2035. The structure is 76 ft (23.3 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR-66
CrossesKoop Creek
Location1.2 Mi. S. Jct. SR-219
RouteState Highway 66
CountyAuglaize County
StateOhio
Coordinates40.47792, -84.37715
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length76 ft (23.3 m)
Longest span29 ft (8.8 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,435 (2015)
Projected traffic8,932 by 2035
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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-66 over Koop Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is SR-66 over 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 April 2024.

How much traffic does SR-66 over Koop Creek carry?

About 6,435 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is SR-66 over Koop Creek?

The structure is 76 ft (23.3 m) long with a longest span of 29 ft (8.8 m) and a deck 44 ft wide.

Who owns SR-66 over Koop Creek?

It is owned by the State Highway Agency.