US Bridges

SR 317 over I-85 (sr 403)

Good

Gwinnett County, Georgia · In South Suwanne · Structure no. 000000013501330

Built
1994
31 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
211 ft
2 main spans
Daily traffic
40,400
2024 count
Owner
State
State Highway Agency

About this bridge

SR 317 over I-85 (sr 403) is a prestressed concrete stringer/multi-beam or girder carrying SR 317 over I-85 (sr 403) in Gwinnett County, Georgia. It was built in 1994, so it is 31 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 40,400 vehicles a day, roughly 1% of them trucks, projected to reach 61,005 by 2032. The structure is 211 ft (64.3 m) long and 91 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesSR 317
CrossesI-85 (sr 403)
LocationIn South Suwanne
RouteState Highway 317
CountyGwinnett County
StateGeorgia
Coordinates34.03005, -84.04832
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length211 ft (64.3 m)
Longest span106 ft (32.3 m)
Deck width91 ft (27.6 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,400 (2024)
Projected traffic61,005 by 2032
Trucks1%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$2.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 317 over I-85 (sr 403) built?

It was built in 1994, making it 31 years old in 2025.

What condition is SR 317 over I-85 (sr 403) 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 February 2024.

How much traffic does SR 317 over I-85 (sr 403) carry?

About 40,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 317 over I-85 (sr 403)?

The structure is 211 ft (64.3 m) long with a longest span of 106 ft (32.3 m) and a deck 91 ft wide.

Who owns SR 317 over I-85 (sr 403)?

It is owned by the State Highway Agency.