US Bridges

US 23SB over Congo CR

Good

Pickaway County, Ohio · 1.18 MI N of SR361 · Structure no. 6500544

Built
1956
69 years old, rebuilt 2010
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
106 ft
3 main spans
Daily traffic
12,006
2018 count
Owner
State
State Highway Agency

About this bridge

US 23SB over Congo CR is a concrete continuous slab carrying US 23SB over Congo CR in Pickaway County, Ohio. It was built in 1956 and reconstructed in 2010, so it is 69 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,006 vehicles a day, roughly 17% of them trucks, projected to reach 16,664 by 2038. The structure is 106 ft (32.2 m) long and 45 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesUS 23SB
CrossesCongo CR
Location1.18 MI N of SR361
RouteU.S. Route 23
StateOhio
Coordinates39.52522, -82.96791
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating54.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length106 ft (32.2 m)
Longest span39 ft (11.8 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,006 (2018)
Projected traffic16,664 by 2038
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

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 US 23SB over Congo CR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2010.

What condition is US 23SB over Congo CR 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 February 2023.

How much traffic does US 23SB over Congo CR carry?

About 12,006 vehicles per day (2018 count), of which roughly 17% are trucks.

How long is US 23SB over Congo CR?

The structure is 106 ft (32.2 m) long with a longest span of 39 ft (11.8 m) and a deck 45 ft wide.

Who owns US 23SB over Congo CR?

It is owned by the State Highway Agency.