US Bridges

SR 120 over Noses Creek

Good

Cobb County, Georgia · 4.1 MI W of Marietta · Structure no. 000000006700390

Built
1945
80 years old, rebuilt 1993
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
31,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120 over Noses Creek is a concrete culvert carrying SR 120 over Noses Creek in Cobb County, Georgia. It was built in 1945 and reconstructed in 1993, so it is 80 years old, older 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 31,000 vehicles a day, roughly 1% of them trucks, projected to reach 46,710 by 2032. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSR 120
CrossesNoses Creek
Location4.1 MI W of Marietta
RouteState Highway 120
StateGeorgia
Coordinates33.94598, -84.61995
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
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,000 (2024)
Projected traffic46,710 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 over Noses Creek built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1993.

What condition is SR 120 over Noses 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 over Noses Creek carry?

About 31,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 120 over Noses Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns SR 120 over Noses Creek?

It is owned by the State Highway Agency.