US Bridges

CR70 over Thorne Run

Good

Morrow County, Ohio · .40 Mmiles N. of Int CR61 · Structure no. 5930899

Built
2018
7 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
34
2015 count
Owner
County
County Highway Agency

About this bridge

CR70 over Thorne Run is a prestressed concrete box beam or girders - multiple carrying CR70 over Thorne Run in Morrow County, Ohio. It was built in 2018, so it is 7 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 34 vehicles a day, roughly 6% of them trucks, projected to reach 47 by 2035. The structure is 58 ft (17.6 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR70
CrossesThorne Run
Location.40 Mmiles N. of Int CR61
RouteCounty Highway C0070
CountyMorrow County
StateOhio
Coordinates40.62167, -82.8997
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating64.3 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length58 ft (17.6 m)
Longest span51 ft (15.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2015)
Projected traffic47 by 2035
Trucks6%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$275 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR70 over Thorne Run built?

It was built in 2018, making it 7 years old in 2025.

What condition is CR70 over Thorne Run 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 October 2023.

How much traffic does CR70 over Thorne Run carry?

About 34 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is CR70 over Thorne Run?

The structure is 58 ft (17.6 m) long with a longest span of 51 ft (15.5 m) and a deck 24 ft wide.

Who owns CR70 over Thorne Run?

It is owned by the County Highway Agency.