US Bridges

SR 506 over Trib of Franklin Branch

Fair

Highland County, Ohio · 0.05MI W of SR 753 · Structure no. 3604020

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
614
2015 count
Owner
State
State Highway Agency

About this bridge

SR 506 over Trib of Franklin Branch is a concrete slab carrying SR 506 over Trib of Franklin Branch in Highland County, Ohio. It was built in 1961, so it is 64 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 5 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 614 vehicles a day, roughly 7% of them trucks, projected to reach 852 by 2035. The structure is 24 ft (7.3 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 506
CrossesTrib of Franklin Branch
Location0.05MI W of SR 753
RouteState Highway 506
CountyHighland County
StateOhio
Coordinates39.1666, -83.40893
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 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 closed6.2 mi (10 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 506 over Trib of Franklin Branch built?

It was built in 1961, making it 64 years old in 2025.

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

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

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

How long is SR 506 over Trib of Franklin Branch?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 36 ft wide.

Who owns SR 506 over Trib of Franklin Branch?

It is owned by the State Highway Agency.