US Bridges

I-85 over N F Ptree Cr- 2 U-Turns

Good

DeKalb County, Georgia · 3 MI S of Chamblee · Structure no. 000000008900650

Built
1980
45 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
381 ft
3 main spans
Daily traffic
206,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 over N F Ptree Cr- 2 U-Turns is a steel stringer/multi-beam or girder carrying I-85 over N F Ptree Cr- 2 U-Turns in DeKalb County, Georgia. It was built in 1980, so it is 45 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 206,000 vehicles a day, roughly 1% of them trucks, projected to reach 300,225 by 2031. The structure is 381 ft (116.1 m) long and 171 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-85
CrossesN F Ptree Cr- 2 U-Turns
Location3 MI S of Chamblee
RouteInterstate 85
StateGeorgia
Coordinates33.8495, -84.3032
Functional classUrban Principal Arterial - Interstate

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length381 ft (116.1 m)
Longest span142 ft (43.3 m)
Deck width171 ft (52.1 m)
Roadway width168 ft (51.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206,000 (2024)
Projected traffic300,225 by 2031
Trucks1%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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$8.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-85 over N F Ptree Cr- 2 U-Turns built?

It was built in 1980, making it 45 years old in 2025.

What condition is I-85 over N F Ptree Cr- 2 U-Turns 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 2024.

How much traffic does I-85 over N F Ptree Cr- 2 U-Turns carry?

About 206,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 over N F Ptree Cr- 2 U-Turns?

The structure is 381 ft (116.1 m) long with a longest span of 142 ft (43.3 m) and a deck 171 ft wide.

Who owns I-85 over N F Ptree Cr- 2 U-Turns?

It is owned by the State Highway Agency.