US Bridges

I-75 (sbl) over Noonday Creek

Good

Cobb County, Georgia · 2.5 MI E of Kennesaw · Structure no. 000000006700840

Built
1976
49 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
232 ft
3 main spans
Daily traffic
47,400
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 (sbl) over Noonday Creek is a steel stringer/multi-beam or girder carrying I-75 (sbl) over Noonday Creek in Cobb County, Georgia. It was built in 1976, so it is 49 years old, older 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 47,400 vehicles a day, roughly 1% of them trucks, projected to reach 193,530 by 2032. The structure is 232 ft (70.7 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-75 (sbl)
CrossesNoonday Creek
Location2.5 MI E of Kennesaw
RouteInterstate 75
CountyCobb County
StateGeorgia
Coordinates34.02206, -84.5717
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span78 ft (23.8 m)
Deck width62 ft (18.8 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,400 (2024)
Projected traffic193,530 by 2032
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 (sbl) over Noonday Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is I-75 (sbl) over Noonday Creek 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 March 2023.

How much traffic does I-75 (sbl) over Noonday Creek carry?

About 47,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 (sbl) over Noonday Creek?

The structure is 232 ft (70.7 m) long with a longest span of 78 ft (23.8 m) and a deck 62 ft wide.

Who owns I-75 (sbl) over Noonday Creek?

It is owned by the State Highway Agency.