US Bridges

I-285 over M-9219 Ptree Dunwoody R

Good

Fulton County, Georgia · In North Fulton · Structure no. 000000012154320

Built
2023
2 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
165 ft
2 main spans
Daily traffic
225,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-285 over M-9219 Ptree Dunwoody R is a concrete stringer/multi-beam or girder carrying I-285 over M-9219 Ptree Dunwoody R in Fulton County, Georgia. It was built in 2023, so it is 2 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 225,000 vehicles a day, roughly 9% of them trucks, projected to reach 35,120 by 2039. The structure is 165 ft (50.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-285
CrossesM-9219 Ptree Dunwoody R
LocationIn North Fulton
RouteInterstate 285
StateGeorgia
Coordinates33.9143, -84.35175
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.
Superstructure8 Very GoodNo problems noted.
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 alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating35.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length165 ft (50.3 m)
Longest span90 ft (27.4 m)
Deck width53 ft (16.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225,000 (2024)
Projected traffic35,120 by 2039
Trucks9%
Lanes on structure2
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 I-285 over M-9219 Ptree Dunwoody R built?

It was built in 2023, making it 2 years old in 2025.

What condition is I-285 over M-9219 Ptree Dunwoody R 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 I-285 over M-9219 Ptree Dunwoody R carry?

About 225,000 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is I-285 over M-9219 Ptree Dunwoody R?

The structure is 165 ft (50.3 m) long with a longest span of 90 ft (27.4 m) and a deck 53 ft wide.

Who owns I-285 over M-9219 Ptree Dunwoody R?

It is owned by the State Highway Agency.