US Bridges

I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky

Good

Cobb County, Georgia · 6.7 Miles South East of M · Structure no. 000000006752480

Built
1999
26 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
291 ft
3 main spans
Daily traffic
30,400
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky is a prestressed concrete stringer/multi-beam or girder carrying I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky in Cobb County, Georgia. It was built in 1999, so it is 26 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 30,400 vehicles a day, roughly 1% of them trucks, projected to reach 45,060 by 2032. The structure is 291 ft (88.7 m) long and 71 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI-285 Ramp Cbl Cd
CrossesRottenwood CR & Cumb Pky
Location6.7 Miles South East of M
RouteInterstate 285
CountyCobb County
StateGeorgia
Coordinates33.89173, -84.45653
Functional classUrban Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating37.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length291 ft (88.7 m)
Longest span105 ft (32 m)
Deck width71 ft (21.7 m)
Roadway width69 ft (20.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,400 (2024)
Projected traffic45,060 by 2032
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed5 mi (8 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$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky built?

It was built in 1999, making it 26 years old in 2025.

What condition is I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky 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 June 2023.

How much traffic does I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky carry?

About 30,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky?

The structure is 291 ft (88.7 m) long with a longest span of 105 ft (32 m) and a deck 71 ft wide.

Who owns I-285 Ramp Cbl Cd over Rottenwood CR & Cumb Pky?

It is owned by the State Highway Agency.