US Bridges

Rock Bridge Road over Jackson Creek

Good

Gwinnett County, Georgia · 2 M. W. of Lilburn · Structure no. 000000013552060

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
45 ft
1 main span
Daily traffic
16,000
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rock Bridge Road over Jackson Creek is a concrete culvert carrying Rock Bridge Road over Jackson Creek in Gwinnett County, Georgia. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,495 by 2032. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRock Bridge Road
CrossesJackson Creek
Location2 M. W. of Lilburn
RouteCity Street 9289
CountyGwinnett County
StateGeorgia
Coordinates33.88885, -84.17284
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span45 ft (13.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2024)
Projected traffic21,495 by 2032
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$336,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Bridge Road over Jackson Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Rock Bridge Road over Jackson 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 September 2023.

How much traffic does Rock Bridge Road over Jackson Creek carry?

About 16,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Rock Bridge Road over Jackson Creek?

The structure is 45 ft (13.7 m) long with a longest span of 45 ft (13.7 m).

Who owns Rock Bridge Road over Jackson Creek?

It is owned by the City or Municipal Highway Agency.