US Bridges

Grog Run Road over Grog Run

PoorPosted for load

Warren County, Ohio · 0.09 MI W of TR 148 · Structure no. 8333076

Built
1978
47 years old
Condition
Poor
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
351
2015 count
Owner
County
County Highway Agency

About this bridge

Grog Run Road over Grog Run is a prestressed concrete box beam or girders - multiple carrying Grog Run Road over Grog Run in Warren County, Ohio. It was built in 1978, so it is 47 years old, younger than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 351 vehicles a day, roughly 7% of them trucks, projected to reach 487 by 2035. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesGrog Run Road
CrossesGrog Run
Location0.09 MI W of TR 148
RouteCounty Highway T0147
StateOhio
Coordinates39.27349, -84.2135
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10 US tons
Inventory rating7.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length41 ft (12.5 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2015)
Projected traffic487 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Grog Run Road over Grog Run built?

It was built in 1978, making it 47 years old in 2025.

What condition is Grog Run Road over Grog Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Grog Run Road over Grog Run carry?

About 351 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Grog Run Road over Grog Run?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns Grog Run Road over Grog Run?

It is owned by the County Highway Agency.