US Bridges

Old Canton Road over Sope Creek

Good

Cobb County, Georgia · 4.9 MI E of Marietta · Structure no. 000000006751870

Built
1997
28 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
108 ft
3 main spans
Daily traffic
13,700
2024 count
Owner
County
County Highway Agency

About this bridge

Old Canton Road over Sope Creek is a prestressed concrete stringer/multi-beam or girder carrying Old Canton Road over Sope Creek in Cobb County, Georgia. It was built in 1997, so it is 28 years old, younger than the Georgia average of 47.5 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 13,700 vehicles a day, roughly 1% of them trucks, projected to reach 21,030 by 2032. The structure is 108 ft (32.9 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Canton Road
CrossesSope Creek
Location4.9 MI E of Marietta
RouteCity Street 9224
StateGeorgia
Coordinates33.95731, -84.46479
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length108 ft (32.9 m)
Longest span36 ft (11 m)
Deck width42 ft (12.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2024)
Projected traffic21,030 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$633,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Canton Road over Sope Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Old Canton Road over Sope Creek 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 May 2023.

How much traffic does Old Canton Road over Sope Creek carry?

About 13,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Old Canton Road over Sope Creek?

The structure is 108 ft (32.9 m) long with a longest span of 36 ft (11 m) and a deck 42 ft wide.

Who owns Old Canton Road over Sope Creek?

It is owned by the County Highway Agency.