US Bridges

Thompson Mill Road over Ivy Creek

Good

Gwinnett County, Georgia · 2.8 MI E of Buford · Structure no. 000000013550200

Built
1965
60 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
6,230
2024 count
Owner
County
County Highway Agency

About this bridge

Thompson Mill Road over Ivy Creek is a concrete culvert carrying Thompson Mill Road over Ivy Creek in Gwinnett County, Georgia. It was built in 1965, so it is 60 years old, older 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 6,230 vehicles a day, roughly 1% of them trucks, projected to reach 8,100 by 2032. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesThompson Mill Road
CrossesIvy Creek
Location2.8 MI E of Buford
RouteCounty Highway 120
StateGeorgia
Coordinates34.11085, -83.95023
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating26.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,230 (2024)
Projected traffic8,100 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$141,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Thompson Mill Road over Ivy Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Thompson Mill Road over Ivy 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 Thompson Mill Road over Ivy Creek carry?

About 6,230 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Thompson Mill Road over Ivy Creek?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Thompson Mill Road over Ivy Creek?

It is owned by the County Highway Agency.