US Bridges

SR 511 over Leidigh Mill Creek

FairPosted for load

Ashland County, Ohio · .3 MI N of SR302 · Structure no. 0305618

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
1,247
2015 count
Owner
State
State Highway Agency

About this bridge

SR 511 over Leidigh Mill Creek is a concrete continuous slab carrying SR 511 over Leidigh Mill Creek in Ashland County, Ohio. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 1,247 vehicles a day, roughly 8% of them trucks, projected to reach 1,731 by 2035. The structure is 80 ft (24.4 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 511
CrossesLeidigh Mill Creek
Location.3 MI N of SR302
RouteState Highway 511
CountyAshland County
StateOhio
Coordinates40.93885, -82.31077
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length80 ft (24.4 m)
Longest span28 ft (8.5 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,247 (2015)
Projected traffic1,731 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 511 over Leidigh Mill Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is SR 511 over Leidigh Mill Creek 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 September 2024.

How much traffic does SR 511 over Leidigh Mill Creek carry?

About 1,247 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is SR 511 over Leidigh Mill Creek?

The structure is 80 ft (24.4 m) long with a longest span of 28 ft (8.5 m) and a deck 36 ft wide.

Who owns SR 511 over Leidigh Mill Creek?

It is owned by the State Highway Agency.