US Bridges

Sugar Loaf Pwy over CSX Railroad

Good

Gwinnett County, Georgia · 3 MI W of Lawrenceville · Structure no. 000000013551410

Built
1994
31 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
411 ft
5 main spans
Daily traffic
43,700
2024 count
Owner
County
County Highway Agency

About this bridge

Sugar Loaf Pwy over CSX Railroad is a prestressed concrete stringer/multi-beam or girder carrying Sugar Loaf Pwy over CSX Railroad 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 43,700 vehicles a day, roughly 1% of them trucks, projected to reach 60,915 by 2032. The structure is 411 ft (125.3 m) long and 95 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSugar Loaf Pwy
CrossesCSX Railroad
Location3 MI W of Lawrenceville
RouteCounty Highway 6512
StateGeorgia
Coordinates33.93629, -84.03094
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating25.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length411 ft (125.3 m)
Longest span119 ft (36.3 m)
Deck width95 ft (29.1 m)
Roadway width93 ft (28.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,700 (2024)
Projected traffic60,915 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$3.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sugar Loaf Pwy over CSX Railroad built?

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

What condition is Sugar Loaf Pwy over CSX Railroad 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 January 2024.

How much traffic does Sugar Loaf Pwy over CSX Railroad carry?

About 43,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Sugar Loaf Pwy over CSX Railroad?

The structure is 411 ft (125.3 m) long with a longest span of 119 ft (36.3 m) and a deck 95 ft wide.

Who owns Sugar Loaf Pwy over CSX Railroad?

It is owned by the County Highway Agency.