US Bridges

I-75 (sbl) over Three Notch Road

Fair

Catoosa County, Georgia · 3.9 MI W of Ringgold · Structure no. 000000004700360

Built
1961
64 years old, rebuilt 1988
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
168 ft
3 main spans
Daily traffic
48,800
2024 count
Owner
State
State Highway Agency

About this bridge

I-75 (sbl) over Three Notch Road is a steel continuous stringer/multi-beam or girder carrying I-75 (sbl) over Three Notch Road in Catoosa County, Georgia. It was built in 1961 and reconstructed in 1988, so it is 64 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 48,800 vehicles a day, roughly 1% of them trucks, projected to reach 130,650 by 2031. The structure is 168 ft (51.2 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-75 (sbl)
CrossesThree Notch Road
Location3.9 MI W of Ringgold
RouteInterstate 75
CountyCatoosa County
StateGeorgia
Coordinates34.9407, -85.16747
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating22.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span66 ft (20.1 m)
Deck width63 ft (19.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,800 (2024)
Projected traffic130,650 by 2031
Trucks1%
Lanes on structure3
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$1.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 (sbl) over Three Notch Road built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1988.

What condition is I-75 (sbl) over Three Notch Road 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 November 2023.

How much traffic does I-75 (sbl) over Three Notch Road carry?

About 48,800 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-75 (sbl) over Three Notch Road?

The structure is 168 ft (51.2 m) long with a longest span of 66 ft (20.1 m) and a deck 63 ft wide.

Who owns I-75 (sbl) over Three Notch Road?

It is owned by the State Highway Agency.