Origin
Riverdale, GA
Morning in Riverdale on Tuesday
Local time
8:05 AM
EDT
Current temp
80°F
Unavailable
Live forecast
Trip from Riverdale, GA to Dunwoody, GA
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
43m
Distance
29.4 mi
47 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$5
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 40m
★
6 AM
0h 44m
8 AM
0h 51m
10 AM
0h 46m
12 PM
0h 46m
3 PM
0h 47m
5 PM
0h 51m
8 PM
0h 41m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Riverdale, GA
Enam Sape
Dunwoody, GA
Wikimedia Commons
Trip Overview
If you are traveling from Riverdale to Dunwoody, you are looking at a 29.5-mile journey across the Southeast. Expect to spend about 36 minutes behind the wheel, making this a quick and straightforward day trip. You will navigate primarily via Main Street, State Route 85, and Forest Parkway rather than sticking to major interstates. With a modest fuel budget of $5, this drive is highly economical for a short commute or local visit. Because the trip is short and requires no overnight stops, you have plenty of flexibility to plan your schedule around local traffic patterns.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 75 | 12 mi | 15m |
| T Harvey Mathis Parkway | 7.1 mi | 8m |
| State Route 85 | 3 mi | 5m |
| Northeast Expressway | 2.7 mi | 3m |
| Mount Vernon Road | 0.9 mi | 2m |
| Turner McDonald Parkway | 0.5 mi | <1m |
| Mount Vernon Highway | 0.5 mi | 1m |
| Abernathy Road Northeast | 0.3 mi | <1m |
Longest stretch:
I 75
— 12 mi, about 15m
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverdale, GA and Dunwoody, GA.
1
Start on this road
39 ft
·
4 sec
·
this road
2
Turn right onto GA 139
186 ft
·
11 sec
·
Main Street
3
Turn left onto GA 85
3.0 mi
·
5 min
·
State Route 85
Use the left lane.
4
Turn right onto GA 331
0.1 mi
·
14 sec
·
Forest Parkway
5
Take the ramp
0.1 mi
·
18 sec
Toward I 75
Use the slight right lane.
6
Keep slight left at fork
0.7 mi
·
1 min
Toward I 75 North: Atlanta
Use the slight left lane.
7
Keep slight left at fork
0.6 mi
·
1 min
Toward I 75 North: Downtown Atlanta
Use the slight left lane.
8
Merge onto I 75
12 mi
·
15 min
·
I 75
Use the straight / slight right lanes.
9
Keep slight left at fork onto I 85
2.7 mi
·
3 min
·
Northeast Expressway
Exit 251B
Toward I 85 North: Greenville
10
Keep slight right at fork onto GA 400
7.1 mi
·
8 min
·
T Harvey Mathis Parkway
Exit 87
Toward GA 400 North: Buckhead, Cumming
Use the straight / slight right lanes.
11
Continue on GA 400
0.5 mi
·
44 sec
·
Turner McDonald Parkway
Use the right lane.
12
Take the exit
0.9 mi
·
1 min
Toward Abernathy Road, Dunwoody, Sandy Springs
Use the straight / slight right lanes.
13
Keep slight right at fork
314 ft
·
4 sec
Toward Dunwoody
Use the slight right lane.
14
Turn straight onto Abernathy Road Northeast
0.3 mi
·
29 sec
·
Abernathy Road Northeast
Use the straight lane.
15
Turn left onto Mount Vernon Highway
0.5 mi
·
1 min
·
Mount Vernon Highway
Use the left lane.
16
Continue on Mount Vernon Road
0.9 mi
·
2 min
·
Mount Vernon Road
17
Turn sharp left
90 ft
·
2 sec
18
Turn right
79 ft
·
5 sec
19
Arrive at destination
Heads-up: tricky spots
5 of 145 decision points cluster between mile 3.3 and 27.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
3.3 mi into trip
|
~5m in
Keep slight left at fork toward I 75 North: Atlanta
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 75 North: Atlanta
7
3.9 mi into trip
|
~7m in
Keep slight left at fork toward I 75 North: Downtown Atlanta
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 75 North: Downtown Atlanta
9
19.1 mi into trip
|
~27m in
|
GA 400 / T Harvey Mathis Parkway
Keep slight right at fork onto GA 400 / T Harvey Mathis Parkway toward GA 400 North: Buckhead, Cumming
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 87
Toward GA 400 North: Buckhead, Cumming
7
26.7 mi into trip
|
~37m in
Take the exit toward Abernathy Road, Dunwoody, Sandy Springs
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward Abernathy Road, Dunwoody, Sandy Springs
7
27.6 mi into trip
|
~39m in
Keep slight right at fork toward Dunwoody
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward Dunwoody
Fuel & Cost
Regular Gas
$4.60 one way
$9.20 round trip
$3.97/gal
25.4 MPG avg
10 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.34 | $5.03 | $10.05 |
| premium | $4.70 | $5.44 | $10.88 |
| diesel | $5.61 | $6.49 | $12.98 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$5
Estimated CO2 emission: 10.3 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 70% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 8.8 | 0 | $3.09 | $1.41 |
| Efficient EV | 7.4 | 0 | $2.57 | $1.18 |
| EV Truck/SUV | 11.8 | 0 | $4.12 | $1.88 |
Gas CO2
10 kg
EV CO2
3 kg (70% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Dunwoody, GA
Morning in Dunwoody on Tuesday
Local time
8:05 AM
EDT
Current temp
80°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
43m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This trip is defined as a turn-heavy local drive, so be prepared for plenty of maneuvering rather than a monotonous highway cruise. Since the highway share is 0%, your entire route consists of surface streets that require your full attention at intersections. You won't encounter any long, uninterrupted stretches of open road, as the route is designed for navigating through the local landscape. The character of the drive remains consistent throughout the 36-minute duration, favoring frequent turns over high-speed travel. Keep your eyes on the road and be ready for the constant transitions between local thoroughfares.
86% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 12 mi on I 75.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 75 and T Harvey Mathis Parkway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.3 miles in.
Driving Effort
9/10
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 14 decision points packed into just 29.4 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 43m.
Where does it get tricky?
The main spots that need attention: at 3.3 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 3.9 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 19.1 miles (GA 400 / T Harvey Mathis Parkway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Riverdale, GA and Dunwoody, GA, road signs point toward Cumming and Sandy Springs.
Cumming
19.1 mi in
|
~27m
|
via GA 400
Sandy Springs
26.7 mi in
|
~37m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 43m. Total distance: 29.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
43m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (86%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 12 miles on I 75. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Dunwoody, GA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 3.3 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 3.9 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 19.1 miles (GA 400 / T Harvey Mathis Parkway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes. A round trip is manageable in a single day if you plan a break at Dunwoody, GA before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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