US Bridges

SR 5 (nbl) over I-75 + (1) I-75 Ramp

Good

Cobb County, Georgia · 2 MI N of Marietta · Structure no. 000000006701850

Built
1985
40 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
396 ft
5 main spans
Daily traffic
13,800
2024 count
Owner
State
State Highway Agency

About this bridge

SR 5 (nbl) over I-75 + (1) I-75 Ramp is a steel continuous stringer/multi-beam or girder carrying SR 5 (nbl) over I-75 + (1) I-75 Ramp in Cobb County, Georgia. It was built in 1985, so it is 40 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 13,800 vehicles a day, roughly 1% of them trucks, projected to reach 2,400 by 2032. The structure is 396 ft (120.7 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 5 (nbl)
CrossesI-75 + (1) I-75 Ramp
Location2 MI N of Marietta
RouteState Highway 5
CountyCobb County
StateGeorgia
Coordinates33.98261, -84.54039
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length396 ft (120.7 m)
Longest span112 ft (34.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,800 (2024)
Projected traffic2,400 by 2032
Trucks1%
Lanes on structure1
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 5 (nbl) over I-75 + (1) I-75 Ramp built?

It was built in 1985, making it 40 years old in 2025.

What condition is SR 5 (nbl) over I-75 + (1) I-75 Ramp 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 SR 5 (nbl) over I-75 + (1) I-75 Ramp carry?

About 13,800 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 5 (nbl) over I-75 + (1) I-75 Ramp?

The structure is 396 ft (120.7 m) long with a longest span of 112 ft (34.1 m) and a deck 33 ft wide.

Who owns SR 5 (nbl) over I-75 + (1) I-75 Ramp?

It is owned by the State Highway Agency.