US Bridges

State Route 506 over Trib of Franklin Branch

Good

Highland County, Ohio · .47 MI W of ST Rt. 753 · Structure no. 3603989

Built
1999
26 years old
Condition
Good
inspected April 2024
Type
Frame
Concrete
Length
29 ft
1 main span
Daily traffic
614
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 506 over Trib of Franklin Branch is a concrete frame carrying State Route 506 over Trib of Franklin Branch in Highland County, Ohio. It was built in 1999, so it is 26 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 614 vehicles a day, roughly 7% of them trucks, projected to reach 852 by 2035. The structure is 29 ft (8.8 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesState Route 506
CrossesTrib of Franklin Branch
Location.47 MI W of ST Rt. 753
RouteState Highway 506
CountyHighland County
StateOhio
Coordinates39.16365, -83.41578
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25 US tons
Inventory rating21.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width36 ft (11.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic614 (2015)
Projected traffic852 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 State Route 506 over Trib of Franklin Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is State Route 506 over Trib of Franklin Branch 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 April 2024.

How much traffic does State Route 506 over Trib of Franklin Branch carry?

About 614 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is State Route 506 over Trib of Franklin Branch?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 36 ft wide.

Who owns State Route 506 over Trib of Franklin Branch?

It is owned by the State Highway Agency.