US Bridges

SR29 over Sherman Ditch

Good

Mercer County, Ohio · .47 Mi. E. of In. ST Line · Structure no. 5400058

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
1,899
2015 count
Owner
State
State Highway Agency

About this bridge

SR29 over Sherman Ditch is a prestressed concrete box beam or girders - multiple carrying SR29 over Sherman Ditch in Mercer County, Ohio. It was built in 2008, so it is 17 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,899 vehicles a day, roughly 38% of them trucks, projected to reach 2,636 by 2035. The structure is 58 ft (17.7 m) long and 44 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesSR29
CrossesSherman Ditch
Location.47 Mi. E. of In. ST Line
RouteState Highway 29
CountyMercer County
StateOhio
Coordinates40.54585, -84.79373
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.3 US tons
Inventory rating76.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width44 ft (13.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,899 (2015)
Projected traffic2,636 by 2035
Trucks38%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 SR29 over Sherman Ditch built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR29 over Sherman Ditch 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 August 2024.

How much traffic does SR29 over Sherman Ditch carry?

About 1,899 vehicles per day (2015 count), of which roughly 38% are trucks.

How long is SR29 over Sherman Ditch?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 44 ft wide.

Who owns SR29 over Sherman Ditch?

It is owned by the State Highway Agency.