US Bridges

County Road 325 over Knollwood RD O Chapman C

Good

Clark County, Ohio · 25 Ft So Snyder Domer · Structure no. 1235851

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
510
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 325 over Knollwood RD O Chapman C is a prestressed concrete stringer/multi-beam or girder carrying County Road 325 over Knollwood RD O Chapman C in Clark County, Ohio. It was built in 2024, so it is 1 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 510 vehicles a day, roughly 5% of them trucks, projected to reach 560 by 2044. The structure is 102 ft (31.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road 325
CrossesKnollwood RD O Chapman C
Location25 Ft So Snyder Domer
RouteCounty Highway 325
CountyClark County
StateOhio
Coordinates40.01977, -83.87476
Functional classRural Local

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 inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating67.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic510 (2024)
Projected traffic560 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 325 over Knollwood RD O Chapman C built?

It was built in 2024, making it 1 years old in 2025.

What condition is County Road 325 over Knollwood RD O Chapman C 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 October 2024.

How much traffic does County Road 325 over Knollwood RD O Chapman C carry?

About 510 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is County Road 325 over Knollwood RD O Chapman C?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns County Road 325 over Knollwood RD O Chapman C?

It is owned by the County Highway Agency.