US Bridges

County Road 73 over Br over Patten Run

Fair

Marion County, Ohio · .3 MI W of JCT SR 4 · Structure no. 5131618

Built
1951
74 years old, rebuilt 2006
Condition
Fair
inspected October 2024
Type
Truss - Thru
Steel
Length
54 ft
1 main span
Daily traffic
555
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 73 over Br over Patten Run is a steel truss - thru carrying County Road 73 over Br over Patten Run in Marion County, Ohio. It was built in 1951 and reconstructed in 2006, so it is 74 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 555 vehicles a day, roughly 7% of them trucks, projected to reach 770 by 2035. The structure is 54 ft (16.5 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 73
CrossesBr over Patten Run
Location.3 MI W of JCT SR 4
RouteCounty Highway 73
CountyMarion County
StateOhio
Coordinates40.46667, -83.21333
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span52 ft (15.9 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic555 (2015)
Projected traffic770 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 County Road 73 over Br over Patten Run built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2006.

What condition is County Road 73 over Br over Patten Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does County Road 73 over Br over Patten Run carry?

About 555 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is County Road 73 over Br over Patten Run?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.9 m) and a deck 22 ft wide.

Who owns County Road 73 over Br over Patten Run?

It is owned by the County Highway Agency.