US Bridges

Brown Road over Sweetwater Creek

Good

Cobb County, Georgia · 4.1 Miles West of Austell · Structure no. 000000006752040

Built
1998
27 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
900
2024 count
Owner
County
County Highway Agency

About this bridge

Brown Road over Sweetwater Creek is a prestressed concrete stringer/multi-beam or girder carrying Brown Road over Sweetwater Creek in Cobb County, Georgia. It was built in 1998, so it is 27 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 900 vehicles a day, roughly 1% of them trucks, projected to reach 2,895 by 2032. The structure is 114 ft (34.7 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBrown Road
CrossesSweetwater Creek
Location4.1 Miles West of Austell
RouteCounty Highway 2120
StateGeorgia
Coordinates33.82097, -84.70596
Functional classUrban Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating37.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length114 ft (34.7 m)
Longest span38 ft (11.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2024)
Projected traffic2,895 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$668,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Brown Road over Sweetwater Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Brown Road over Sweetwater 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 June 2023.

How much traffic does Brown Road over Sweetwater Creek carry?

About 900 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Brown Road over Sweetwater Creek?

The structure is 114 ft (34.7 m) long with a longest span of 38 ft (11.6 m) and a deck 43 ft wide.

Who owns Brown Road over Sweetwater Creek?

It is owned by the County Highway Agency.