US Bridges

SR 317 over Suwanee Creek

Fair

Gwinnett County, Georgia · In Suwanee · Structure no. 000000013500430

Built
1959
66 years old, rebuilt 1993
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
84 ft
3 main spans
Daily traffic
31,800
2024 count
Owner
State
State Highway Agency

About this bridge

SR 317 over Suwanee Creek is a concrete tee beam carrying SR 317 over Suwanee Creek in Gwinnett County, Georgia. It was built in 1959 and reconstructed in 1993, so it is 66 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 31,800 vehicles a day, roughly 4% of them trucks, projected to reach 44,640 by 2032. The structure is 84 ft (25.6 m) long and 94 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 317
CrossesSuwanee Creek
LocationIn Suwanee
RouteState Highway 317
CountyGwinnett County
StateGeorgia
Coordinates34.05132, -84.05987
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span28 ft (8.5 m)
Deck width94 ft (28.7 m)
Roadway width88 ft (26.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,800 (2024)
Projected traffic44,640 by 2032
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$761,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 317 over Suwanee Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1993.

What condition is SR 317 over Suwanee Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does SR 317 over Suwanee Creek carry?

About 31,800 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SR 317 over Suwanee Creek?

The structure is 84 ft (25.6 m) long with a longest span of 28 ft (8.5 m) and a deck 94 ft wide.

Who owns SR 317 over Suwanee Creek?

It is owned by the State Highway Agency.