US Bridges

Rmp I-75N to SR166 over I-75- SR 166 Ramp

Good

Fulton County, Georgia · In S Atlanta · Structure no. 000000012106310

Built
1987
38 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
314 ft
2 main spans
Daily traffic
20,200
2024 count
Owner
State
State Highway Agency

About this bridge

Rmp I-75N to SR166 over I-75- SR 166 Ramp is a prestressed concrete continuous box beam or girders - single or spread carrying Rmp I-75N to SR166 over I-75- SR 166 Ramp in Fulton County, Georgia. It was built in 1987, so it is 38 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 20,200 vehicles a day, roughly 1% of them trucks, projected to reach 6,960 by 2032. The structure is 314 ft (95.7 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRmp I-75N to SR166
CrossesI-75- SR 166 Ramp
LocationIn S Atlanta
RouteState Highway 166
CountyFulton County
StateGeorgia
Coordinates33.69899, -84.40443
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length314 ft (95.7 m)
Longest span159 ft (48.5 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,200 (2024)
Projected traffic6,960 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Rmp I-75N to SR166 over I-75- SR 166 Ramp built?

It was built in 1987, making it 38 years old in 2025.

What condition is Rmp I-75N to SR166 over I-75- SR 166 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 Rmp I-75N to SR166 over I-75- SR 166 Ramp carry?

About 20,200 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Rmp I-75N to SR166 over I-75- SR 166 Ramp?

The structure is 314 ft (95.7 m) long with a longest span of 159 ft (48.5 m) and a deck 45 ft wide.

Who owns Rmp I-75N to SR166 over I-75- SR 166 Ramp?

It is owned by the State Highway Agency.