US Bridges

CR 170 over Mill Creek

Good

Morrow County, Ohio · .10 Mi. N. Int. TR213 · Structure no. 5930004

Built
2014
11 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
716
2015 count
Owner
County
County Highway Agency

About this bridge

CR 170 over Mill Creek is a prestressed concrete box beam or girders - multiple carrying CR 170 over Mill Creek in Morrow County, Ohio. It was built in 2014, so it is 11 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 716 vehicles a day, roughly 8% of them trucks, projected to reach 994 by 2035. The structure is 58 ft (17.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 170
CrossesMill Creek
Location.10 Mi. N. Int. TR213
RouteCounty Highway C0170
StateOhio
Coordinates40.39402, -82.78914
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 protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66 US tons
Inventory rating50.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic716 (2015)
Projected traffic994 by 2035
Trucks8%
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 CR 170 over Mill Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is CR 170 over Mill 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 December 2024.

How much traffic does CR 170 over Mill Creek carry?

About 716 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is CR 170 over Mill Creek?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns CR 170 over Mill Creek?

It is owned by the County Highway Agency.