US Bridges

I-575 (nbl) over CR 646 Hawkins Store Rd.

Good

Cobb County, Georgia · 5 MI NE of Kennesaw · Structure no. 000000006701190

Built
1980
45 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
185 ft
1 main span
Daily traffic
93,100
2024 count
Owner
State
State Highway Agency

About this bridge

I-575 (nbl) over CR 646 Hawkins Store Rd. is a prestressed concrete box beam or girders - single or spread carrying I-575 (nbl) over CR 646 Hawkins Store Rd. in Cobb County, Georgia. It was built in 1980, so it is 45 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 93,100 vehicles a day, roughly 5% of them trucks, projected to reach 123,825 by 2032. The structure is 185 ft (56.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-575 (nbl)
CrossesCR 646 Hawkins Store Rd.
Location5 MI NE of Kennesaw
RouteInterstate 575
StateGeorgia
Coordinates34.05747, -84.54303
Functional classUrban Principal Arterial - Interstate

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 inspectionMay 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 rating61 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length185 ft (56.4 m)
Longest span185 ft (56.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93,100 (2024)
Projected traffic123,825 by 2032
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-575 (nbl) over CR 646 Hawkins Store Rd. built?

It was built in 1980, making it 45 years old in 2025.

What condition is I-575 (nbl) over CR 646 Hawkins Store Rd. 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 May 2023.

How much traffic does I-575 (nbl) over CR 646 Hawkins Store Rd. carry?

About 93,100 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is I-575 (nbl) over CR 646 Hawkins Store Rd.?

The structure is 185 ft (56.4 m) long with a longest span of 185 ft (56.4 m) and a deck 44 ft wide.

Who owns I-575 (nbl) over CR 646 Hawkins Store Rd.?

It is owned by the State Highway Agency.