US Bridges

Windy Ridge Parkwa over I-75 and Ramps

Good

Cobb County, Georgia · 3 Mi. East of Smyrna · Structure no. 000000006751910

Built
1998
27 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
551 ft
5 main spans
Daily traffic
18,106
2024 count
Owner
State
State Highway Agency

About this bridge

Windy Ridge Parkwa over I-75 and Ramps is a steel continuous stringer/multi-beam or girder carrying Windy Ridge Parkwa over I-75 and Ramps in Cobb County, Georgia. It was built in 1998, so it is 27 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 18,106 vehicles a day, roughly 1% of them trucks, projected to reach 9,630 by 2032. The structure is 551 ft (167.9 m) long and 127 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWindy Ridge Parkwa
CrossesI-75 and Ramps
Location3 Mi. East of Smyrna
RouteCounty Highway 9036
StateGeorgia
Coordinates33.89437, -84.46449
Functional classUrban Minor 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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating35.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length551 ft (167.9 m)
Longest span200 ft (61 m)
Deck width127 ft (38.7 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic9,630 by 2032
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$5.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Windy Ridge Parkwa over I-75 and Ramps built?

It was built in 1998, making it 27 years old in 2025.

What condition is Windy Ridge Parkwa over I-75 and Ramps 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 Windy Ridge Parkwa over I-75 and Ramps carry?

About 18,106 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Windy Ridge Parkwa over I-75 and Ramps?

The structure is 551 ft (167.9 m) long with a longest span of 200 ft (61 m) and a deck 127 ft wide.

Who owns Windy Ridge Parkwa over I-75 and Ramps?

It is owned by the State Highway Agency.