US Bridges

Browns Bridge Road over Chatt River(lake Lanier)

Good

Forsyth County, Georgia · 7MI East of Cumming · Structure no. 000000011750610

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,430 ft
8 main spans
Daily traffic
14,500
2024 count
Owner
State
State Highway Agency

About this bridge

Browns Bridge Road over Chatt River(lake Lanier) is a steel stringer/multi-beam or girder carrying Browns Bridge Road over Chatt River(lake Lanier) in Forsyth County, Georgia. It was built in 2021, so it is 4 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 14,500 vehicles a day, roughly 10% of them trucks, projected to reach 24,000 by 2038. The structure is 1,430 ft (435.9 m) long and 43 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesBrowns Bridge Road
CrossesChatt River(lake Lanier)
Location7MI East of Cumming
RouteState Highway 369
CountyForsyth County
StateGeorgia
Coordinates34.26177, -83.95103
Functional classRural 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 protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length1,430 ft (435.9 m)
Longest span240 ft (73.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2024)
Projected traffic24,000 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$190.5 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Browns Bridge Road over Chatt River(lake Lanier) built?

It was built in 2021, making it 4 years old in 2025.

What condition is Browns Bridge Road over Chatt River(lake Lanier) 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 Browns Bridge Road over Chatt River(lake Lanier) carry?

About 14,500 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Browns Bridge Road over Chatt River(lake Lanier)?

The structure is 1,430 ft (435.9 m) long with a longest span of 240 ft (73.2 m) and a deck 43 ft wide.

Who owns Browns Bridge Road over Chatt River(lake Lanier)?

It is owned by the State Highway Agency.