US Bridges

TR9 over Trib.Of Flat Run

Good

Morrow County, Ohio · .8 MI.N.INT.TR10 & TR9 · Structure no. 5930936

Built
1982
43 years old, rebuilt 1991
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
639
2015 count
Owner
County
County Highway Agency

About this bridge

TR9 over Trib.Of Flat Run is a steel stringer/multi-beam or girder carrying TR9 over Trib.Of Flat Run in Morrow County, Ohio. It was built in 1982 and reconstructed in 1991, so it is 43 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 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 639 vehicles a day, roughly 8% of them trucks, projected to reach 887 by 2035. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR9
CrossesTrib.Of Flat Run
Location.8 MI.N.INT.TR10 & TR9
RouteCounty Highway 9
StateOhio
Coordinates40.65854, -82.85931
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.3 US tons
Inventory rating55.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic639 (2015)
Projected traffic887 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 TR9 over Trib.Of Flat Run built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 1991.

What condition is TR9 over Trib.Of 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 October 2023.

How much traffic does TR9 over Trib.Of Flat Run carry?

About 639 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is TR9 over Trib.Of Flat Run?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns TR9 over Trib.Of Flat Run?

It is owned by the County Highway Agency.