US Bridges

Flat Rock Road over Brush Creek

Good

Henry County, Georgia · 2 MI East of Stockbridge · Structure no. 000000015150910

Built
2007
18 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
126 ft
3 main spans
Daily traffic
4,770
2024 count
Owner
County
County Highway Agency

About this bridge

Flat Rock Road over Brush Creek is a prestressed concrete stringer/multi-beam or girder carrying Flat Rock Road over Brush Creek in Henry County, Georgia. It was built in 2007, so it is 18 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 4,770 vehicles a day, roughly 1% of them trucks, projected to reach 5,055 by 2031. The structure is 126 ft (38.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFlat Rock Road
CrossesBrush Creek
Location2 MI East of Stockbridge
RouteCounty Highway 100
StateGeorgia
Coordinates33.55197, -84.1857
Functional classUrban Collector

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating20.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length126 ft (38.4 m)
Longest span86 ft (26.2 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,770 (2024)
Projected traffic5,055 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$738,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Flat Rock Road over Brush Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Flat Rock Road over Brush 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 October 2024.

How much traffic does Flat Rock Road over Brush Creek carry?

About 4,770 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Flat Rock Road over Brush Creek?

The structure is 126 ft (38.4 m) long with a longest span of 86 ft (26.2 m) and a deck 44 ft wide.

Who owns Flat Rock Road over Brush Creek?

It is owned by the County Highway Agency.