US Bridges

Quinn RD over Quinn Branch

Poor

Preble County, Ohio · .20 N of US 35 · Structure no. 6833756

Built
1930
95 years old, rebuilt 1955
Condition
Poor
inspected August 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
348
2015 count
Owner
County
County Highway Agency

About this bridge

Quinn RD over Quinn Branch is a concrete slab carrying Quinn RD over Quinn Branch in Preble County, Ohio. It was built in 1930 and reconstructed in 1955, so it is 95 years old, older 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 4 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.

It carries about 348 vehicles a day, roughly 7% of them trucks, projected to reach 483 by 2035. The structure is 25 ft (7.6 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesQuinn RD
CrossesQuinn Branch
Location.20 N of US 35
RouteCounty Highway T0425
CountyPreble County
StateOhio
Coordinates39.74732, -84.57628
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width23 ft (7.1 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic348 (2015)
Projected traffic483 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Quinn RD over Quinn Branch built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1955.

What condition is Quinn RD over Quinn Branch 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 August 2024.

How much traffic does Quinn RD over Quinn Branch carry?

About 348 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Quinn RD over Quinn Branch?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 23 ft wide.

Who owns Quinn RD over Quinn Branch?

It is owned by the County Highway Agency.