US Bridges

SR 120 Loop over Sope Creek

Good

Cobb County, Georgia · 0.8 MI W SR 120L & I-75 I · Structure no. 000000006701980

Built
1985
40 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
20,700
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120 Loop over Sope Creek is a concrete culvert carrying SR 120 Loop over Sope Creek in Cobb County, Georgia. It was built in 1985, so it is 40 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 20,700 vehicles a day, roughly 1% of them trucks, projected to reach 29,805 by 2032. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 120 Loop
CrossesSope Creek
Location0.8 MI W SR 120L & I-75 I
RouteState Highway 120
StateGeorgia
Coordinates33.95879, -84.53418
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,700 (2024)
Projected traffic29,805 by 2032
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR 120 Loop over Sope Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is SR 120 Loop 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 March 2023.

How much traffic does SR 120 Loop over Sope Creek carry?

About 20,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 120 Loop over Sope Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 120 Loop over Sope Creek?

It is owned by the State Highway Agency.