US Bridges

SR 20 - US 23 over SR 419 (I-985)

Good

Gwinnett County, Georgia · 2.25 MI SE of Buford · Structure no. 000000013551780

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
277 ft
4 main spans
Daily traffic
97,400
2024 count
Owner
State
State Highway Agency

About this bridge

SR 20 - US 23 over SR 419 (I-985) is a steel continuous stringer/multi-beam or girder carrying SR 20 - US 23 over SR 419 (I-985) in Gwinnett County, Georgia. It was built in 1999, so it is 26 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 97,400 vehicles a day, roughly 1% of them trucks, projected to reach 117,030 by 2032. The structure is 277 ft (84.4 m) long and 142 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 20 - US 23
CrossesSR 419 (I-985)
Location2.25 MI SE of Buford
RouteU.S. Route 23
CountyGwinnett County
StateGeorgia
Coordinates34.087, -83.99359
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.
Superstructure7 GoodSome minor problems.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length277 ft (84.4 m)
Longest span91 ft (27.7 m)
Deck width142 ft (43.2 m)
Roadway width138 ft (42.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97,400 (2024)
Projected traffic117,030 by 2032
Trucks1%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$5.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 20 - US 23 over SR 419 (I-985) built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR 20 - US 23 over SR 419 (I-985) 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 SR 20 - US 23 over SR 419 (I-985) carry?

About 97,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 20 - US 23 over SR 419 (I-985)?

The structure is 277 ft (84.4 m) long with a longest span of 91 ft (27.7 m) and a deck 142 ft wide.

Who owns SR 20 - US 23 over SR 419 (I-985)?

It is owned by the State Highway Agency.