US Bridges

Williamson Road over Rocky Creek Trib

Good

Bibb County, Georgia · 0.4 MI W of SR247 SW Maco · Structure no. 000000002150480

Built
1995
30 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
2 main spans
Daily traffic
6,310
2024 count
Owner
County
County Highway Agency

About this bridge

Williamson Road over Rocky Creek Trib is a prestressed concrete box beam or girders - multiple carrying Williamson Road over Rocky Creek Trib in Bibb County, Georgia. It was built in 1995, so it is 30 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 6,310 vehicles a day, roughly 1% of them trucks, projected to reach 9,930 by 2032. The structure is 60 ft (18.3 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWilliamson Road
CrossesRocky Creek Trib
Location0.4 MI W of SR247 SW Maco
RouteCity Street 3202
StateGeorgia
Coordinates32.80596, -83.67744
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,310 (2024)
Projected traffic9,930 by 2032
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$352,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Williamson Road over Rocky Creek Trib built?

It was built in 1995, making it 30 years old in 2025.

What condition is Williamson Road over Rocky Creek Trib 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 November 2023.

How much traffic does Williamson Road over Rocky Creek Trib carry?

About 6,310 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Williamson Road over Rocky Creek Trib?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns Williamson Road over Rocky Creek Trib?

It is owned by the County Highway Agency.