US Bridges

Old Canton Road over Sope Creek Trib.

Good

Cobb County, Georgia · 5.5 MI NE of Marietta · Structure no. 000000006702000

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
148 ft
3 main spans
Daily traffic
8,000
2024 count
Owner
County
County Highway Agency

About this bridge

Old Canton Road over Sope Creek Trib. is a prestressed concrete stringer/multi-beam or girder carrying Old Canton Road over Sope Creek Trib. in Cobb County, Georgia. It was built in 1987, so it is 38 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 8,000 vehicles a day, roughly 1% of them trucks, projected to reach 11,445 by 2032. The structure is 148 ft (45.1 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Canton Road
CrossesSope Creek Trib.
Location5.5 MI NE of Marietta
RouteCity Street 9224
StateGeorgia
Coordinates33.98636, -84.46377
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length148 ft (45.1 m)
Longest span62 ft (18.9 m)
Deck width64 ft (19.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2024)
Projected traffic11,445 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$867,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Canton Road over Sope Creek Trib. built?

It was built in 1987, making it 38 years old in 2025.

What condition is Old Canton Road over Sope Creek Trib. 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 Trib. carry?

About 8,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Old Canton Road over Sope Creek Trib.?

The structure is 148 ft (45.1 m) long with a longest span of 62 ft (18.9 m) and a deck 64 ft wide.

Who owns Old Canton Road over Sope Creek Trib.?

It is owned by the County Highway Agency.