US Bridges

Stoneham Drive over Unknown Creek

Good

Gwinnett County, Georgia · 2M N/E of Duluth · Structure no. 000000013552840

Built
2004
21 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
24 ft
1 main span
Daily traffic
2,047
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stoneham Drive over Unknown Creek is a steel culvert carrying Stoneham Drive over Unknown Creek in Gwinnett County, Georgia. It was built in 2004, so it is 21 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,047 vehicles a day. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesStoneham Drive
CrossesUnknown Creek
Location2M N/E of Duluth
RouteCity Street 1121
StateGeorgia
Coordinates34.01672, -84.11138
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 protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,047 (2024)
Projected traffic—
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$3.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Stoneham Drive over Unknown Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Stoneham Drive over Unknown 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 2024.

How much traffic does Stoneham Drive over Unknown Creek carry?

About 2,047 vehicles per day (2024 count).

How long is Stoneham Drive over Unknown Creek?

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

Who owns Stoneham Drive over Unknown Creek?

It is owned by the City or Municipal Highway Agency.