US Bridges

SR 61 over Flat Run

Good

Morrow County, Ohio · 0.20 MI N of SR309 · Structure no. 5900395

Built
1964
61 years old, rebuilt 1998
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
2,860
2015 count
Owner
State
State Highway Agency

About this bridge

SR 61 over Flat Run is a steel stringer/multi-beam or girder carrying SR 61 over Flat Run in Morrow County, Ohio. It was built in 1964 and reconstructed in 1998, so it is 61 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 2,860 vehicles a day, roughly 10% of them trucks, projected to reach 3,970 by 2035. The structure is 55 ft (16.8 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 61
CrossesFlat Run
Location0.20 MI N of SR309
RouteState Highway 61
StateOhio
Coordinates40.68577, -82.82121
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating85.8 US tons
Inventory rating53.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span50 ft (15.2 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,860 (2015)
Projected traffic3,970 by 2035
Trucks10%
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

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 61 over Flat Run built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1998.

What condition is SR 61 over Flat 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 June 2023.

How much traffic does SR 61 over Flat Run carry?

About 2,860 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is SR 61 over Flat Run?

The structure is 55 ft (16.8 m) long with a longest span of 50 ft (15.2 m) and a deck 44 ft wide.

Who owns SR 61 over Flat Run?

It is owned by the State Highway Agency.