US Bridges

SR 316 - US 29 (wb over Apalachee River

Good

Gwinnett County, Georgia · 4 MI E of Dacula · Structure no. 000000013501180

Built
1991
34 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
320 ft
8 main spans
Daily traffic
44,000
2024 count
Owner
State
State Highway Agency

About this bridge

SR 316 - US 29 (wb over Apalachee River is a prestressed concrete stringer/multi-beam or girder carrying SR 316 - US 29 (wb over Apalachee River in Gwinnett County, Georgia. It was built in 1991, so it is 34 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 44,000 vehicles a day, roughly 9% of them trucks, projected to reach 43,275 by 2032. The structure is 320 ft (97.5 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 316 - US 29 (wb
CrossesApalachee River
Location4 MI E of Dacula
RouteU.S. Route 29
CountyGwinnett County
StateGeorgia
Coordinates33.97012, -83.83359
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length320 ft (97.5 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,000 (2024)
Projected traffic43,275 by 2032
Trucks9%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 316 - US 29 (wb over Apalachee River built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR 316 - US 29 (wb over Apalachee River 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 SR 316 - US 29 (wb over Apalachee River carry?

About 44,000 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 316 - US 29 (wb over Apalachee River?

The structure is 320 ft (97.5 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns SR 316 - US 29 (wb over Apalachee River?

It is owned by the State Highway Agency.