US Bridges

316 E/B & W/B Hov over I-85 Nbcd

Good

Gwinnett County, Georgia · 3.3 MI SE Duluth · Structure no. 000000013552200

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
2,930
2024 count
Owner
State
State Highway Agency

About this bridge

316 E/B & W/B Hov over I-85 Nbcd is a prestressed concrete stringer/multi-beam or girder carrying 316 E/B & W/B Hov over I-85 Nbcd in Gwinnett County, Georgia. It was built in 2008, so it is 17 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 2,930 vehicles a day, roughly 10% of them trucks, projected to reach 16,000 by 2031. The structure is 84 ft (25.6 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries316 E/B & W/B Hov
CrossesI-85 Nbcd
Location3.3 MI SE Duluth
RouteState Highway 316
CountyGwinnett County
StateGeorgia
Coordinates33.96452, -84.09872
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating63.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length84 ft (25.6 m)
Longest span84 ft (25.6 m)
Deck width66 ft (20 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,930 (2024)
Projected traffic16,000 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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$492,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 316 E/B & W/B Hov over I-85 Nbcd built?

It was built in 2008, making it 17 years old in 2025.

What condition is 316 E/B & W/B Hov over I-85 Nbcd 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 October 2023.

How much traffic does 316 E/B & W/B Hov over I-85 Nbcd carry?

About 2,930 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 316 E/B & W/B Hov over I-85 Nbcd?

The structure is 84 ft (25.6 m) long with a longest span of 84 ft (25.6 m) and a deck 66 ft wide.

Who owns 316 E/B & W/B Hov over I-85 Nbcd?

It is owned by the State Highway Agency.