US Bridges

Township Road 166 over Br over Olentangy River

Good

Marion County, Ohio · .3 MI E of JCT CR 163 · Structure no. 5138051

Built
1993
32 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
157 ft
3 main spans
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Township Road 166 over Br over Olentangy River is a prestressed concrete box beam or girders - multiple carrying Township Road 166 over Br over Olentangy River in Marion County, Ohio. It was built in 1993, so it is 32 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 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2035. The structure is 157 ft (47.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTownship Road 166
CrossesBr over Olentangy River
Location.3 MI E of JCT CR 163
RouteCounty Highway T166F
CountyMarion County
StateOhio
Coordinates40.60167, -82.97333
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating46.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length157 ft (47.9 m)
Longest span51 ft (15.5 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2015)
Projected traffic487 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Township Road 166 over Br over Olentangy River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Township Road 166 over Br over Olentangy 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 August 2024.

How much traffic does Township Road 166 over Br over Olentangy River carry?

About 351 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Township Road 166 over Br over Olentangy River?

The structure is 157 ft (47.9 m) long with a longest span of 51 ft (15.5 m) and a deck 28 ft wide.

Who owns Township Road 166 over Br over Olentangy River?

It is owned by the County Highway Agency.