US Bridges

I-75 Managed Lane over Noonday Creek

Good

Cobb County, Georgia · Near Kennesaw · Structure no. 000000006753500

Built
2016
9 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
3 main spans
Daily traffic
28,820
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 Managed Lane over Noonday Creek is a prestressed concrete stringer/multi-beam or girder carrying I-75 Managed Lane over Noonday Creek in Cobb County, Georgia. It was built in 2016, so it is 9 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 28,820 vehicles a day, roughly 1% of them trucks, projected to reach 8,030 by 2036. The structure is 260 ft (79.2 m) long and 41 ft wide.

CarriesI-75 Managed Lane
CrossesNoonday Creek
LocationNear Kennesaw
RouteInterstate 401
StateGeorgia
Coordinates34.02115, -84.57037
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating24.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length260 ft (79.2 m)
Longest span94 ft (28.7 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,820 (2024)
Projected traffic8,030 by 2036
Trucks1%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll 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$34.6 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 Managed Lane over Noonday Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is I-75 Managed Lane 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 February 2024.

How much traffic does I-75 Managed Lane over Noonday Creek carry?

About 28,820 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 Managed Lane over Noonday Creek?

The structure is 260 ft (79.2 m) long with a longest span of 94 ft (28.7 m) and a deck 41 ft wide.

Who owns I-75 Managed Lane over Noonday Creek?

It is owned by the State Highway Agency.