US Bridges

SR 120 Loop Ramp over SR120

Good

Cobb County, Georgia · In East Marietta · Structure no. 000000006753020

Built
2012
13 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
2 main spans
Daily traffic
10,900
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120 Loop Ramp over SR120 is a prestressed concrete stringer/multi-beam or girder carrying SR 120 Loop Ramp over SR120 in Cobb County, Georgia. It was built in 2012, so it is 13 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 10,900 vehicles a day, roughly 2% of them trucks, projected to reach 20,220 by 2030. The structure is 210 ft (64 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 120 Loop Ramp
CrossesSR120
LocationIn East Marietta
RouteState Highway 120
StateGeorgia
Coordinates33.96035, -84.49725
Functional classUrban Other Principal Arterial

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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length210 ft (64 m)
Longest span105 ft (32 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,900 (2024)
Projected traffic20,220 by 2030
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 120 Loop Ramp over SR120 built?

It was built in 2012, making it 13 years old in 2025.

What condition is SR 120 Loop Ramp over SR120 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 Ramp over SR120 carry?

About 10,900 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR 120 Loop Ramp over SR120?

The structure is 210 ft (64 m) long with a longest span of 105 ft (32 m) and a deck 43 ft wide.

Who owns SR 120 Loop Ramp over SR120?

It is owned by the State Highway Agency.