US Bridges

Manley Road over Big Blackcreek

Fair

Mercer County, Ohio · 0.1 MI W. Hill Road · Structure no. 5432812

Built
2005
20 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
324
2015 count
Owner
County
County Highway Agency

About this bridge

Manley Road over Big Blackcreek is a prestressed concrete box beam or girders - multiple carrying Manley Road over Big Blackcreek in Mercer County, Ohio. It was built in 2005, so it is 20 years old, younger 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 324 vehicles a day, roughly 7% of them trucks, projected to reach 450 by 2035. The structure is 70 ft (21.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesManley Road
CrossesBig Blackcreek
Location0.1 MI W. Hill Road
RouteCounty Highway T0230
CountyMercer County
StateOhio
Coordinates40.68419, -84.73949
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span67 ft (20.4 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2015)
Projected traffic450 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Manley Road over Big Blackcreek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Manley Road over Big Blackcreek 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 December 2024.

How much traffic does Manley Road over Big Blackcreek carry?

About 324 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Manley Road over Big Blackcreek?

The structure is 70 ft (21.3 m) long with a longest span of 67 ft (20.4 m) and a deck 32 ft wide.

Who owns Manley Road over Big Blackcreek?

It is owned by the County Highway Agency.