US Bridges

I-75 (nbl) over SR 61 (us 411)

Fair

Bartow County, Georgia · In NE Cartersville · Structure no. 000000001500930

Built
1970
55 years old, rebuilt 1977
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
179 ft
2 main spans
Daily traffic
80,800
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 (nbl) over SR 61 (us 411) is a steel continuous stringer/multi-beam or girder carrying I-75 (nbl) over SR 61 (us 411) in Bartow County, Georgia. It was built in 1970 and reconstructed in 1977, so it is 55 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 80,800 vehicles a day, roughly 1% of them trucks, projected to reach 96,870 by 2031. The structure is 179 ft (54.6 m) long and 70 ft wide.

CarriesI-75 (nbl)
CrossesSR 61 (us 411)
LocationIn NE Cartersville
RouteInterstate 75
StateGeorgia
Coordinates34.24547, -84.77344
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.9 US tons
Inventory rating23.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length179 ft (54.6 m)
Longest span89 ft (27.1 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80,800 (2024)
Projected traffic96,870 by 2031
Trucks1%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 (nbl) over SR 61 (us 411) built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1977.

What condition is I-75 (nbl) over SR 61 (us 411) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does I-75 (nbl) over SR 61 (us 411) carry?

About 80,800 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 (nbl) over SR 61 (us 411)?

The structure is 179 ft (54.6 m) long with a longest span of 89 ft (27.1 m) and a deck 70 ft wide.

Who owns I-75 (nbl) over SR 61 (us 411)?

It is owned by the State Highway Agency.