US Bridges

Ptree Ind S/B over Suwanee Creek

Good

Gwinnett County, Georgia · 1 MI N of Duluth · Structure no. 000000013551910

Built
2000
25 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
478 ft
4 main spans
Daily traffic
38,000
2024 count
Owner
County
County Highway Agency

About this bridge

Ptree Ind S/B over Suwanee Creek is a prestressed concrete stringer/multi-beam or girder carrying Ptree Ind S/B over Suwanee Creek in Gwinnett County, Georgia. It was built in 2000, so it is 25 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 38,000 vehicles a day, roughly 1% of them trucks, projected to reach 50,430 by 2032. The structure is 478 ft (145.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPtree Ind S/B
CrossesSuwanee Creek
Location1 MI N of Duluth
RouteCounty Highway 2947
CountyGwinnett County
StateGeorgia
Coordinates34.0328, -84.10723
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating92.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length478 ft (145.7 m)
Longest span120 ft (36.6 m)
Deck width41 ft (12.5 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (2024)
Projected traffic50,430 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$2.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Ptree Ind S/B over Suwanee Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Ptree Ind S/B over Suwanee 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 December 2023.

How much traffic does Ptree Ind S/B over Suwanee Creek carry?

About 38,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Ptree Ind S/B over Suwanee Creek?

The structure is 478 ft (145.7 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.

Who owns Ptree Ind S/B over Suwanee Creek?

It is owned by the County Highway Agency.