Brandon, SD to Rapid Valley, SD is 349.3 miles and takes about 5h 36m via I 90, North Elk Vale Road, and North Splitrock Boulevard, with a fuel budget near $54 and enough daylight to finish in a day. This trip stays within the Great Plains region, offering a straightforward drive across South Dakota. With 99% of the route on highways, you'll spend most of your time cruising. It's a practical choice for a single-day trip, especially if you're looking to cover ground efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
174.6 miles from Brandon, SD
A natural place for your longest stop of the day
, about 2h 46m into the drive
.
Main Roads
Road
Distance
Duration
I 90
344.2 mi
5h 25m
North Elk Vale Road
2.3 mi
3m
North Splitrock Boulevard
1 mi
2m
Twilight Drive
0.5 mi
1m
Sweetbriar Street
0.2 mi
<1m
Concourse Drive
0.2 mi
<1m
Peanut Lane
0.1 mi
<1m
East Sylvan Circle
<0.1 mi
<1m
Longest stretch:
I 90
— 344.2 mi, about 5h 25m
Traffic on I-90
Hour-of-day weekday pattern from 58 FHWA count stations on your route.
Peak
2 PM
~319 veh/hr typical
· worst 594
Quietest
2 AM
~22 veh/hr
Peak-to-quiet ratio
14.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 103 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Brandon, SD and Rapid Valley, SD.
1
Start on North Pipestone Street
44 ft·3 sec·North Pipestone Street
2
Turn right onto East Sylvan Circle
107 ft·6 sec·East Sylvan Circle
3
Turn right onto SD 11
1.0 mi·2 min·North Splitrock Boulevard
4
Take the ramp
0.3 mi·36 sec
5
Merge onto I 90
344 mi·5 hr 25 min·I 90
Use the straight / slight right lanes.
6
Take the exit
0.3 mi·35 sec
Toward US 16 Truck, ND 79 South: Mount Rushmore, Crazy Horse
7
Keep slight left at fork
0.2 mi·23 sec
8
Continue on US 16 Truck; SD 79
2.3 mi·3 min·North Elk Vale Road
9
Turn left onto Concourse Drive
0.2 mi·38 sec·Concourse Drive
10
Turn left onto Twilight Drive
0.5 mi·1 min·Twilight Drive
11
Turn right onto Peanut Lane
0.1 mi·32 sec·Peanut Lane
12
Turn right onto Sweetbriar Street
0.2 mi·57 sec·Sweetbriar Street
13
Arrive at destination
Sweetbriar Street
Trip Plan
To make the most of this 5h 36m drive, consider an early morning departure to maximize daylight. Since the longest stretch is over 344 miles on I 90, plan for one fuel and rest stop around the halfway point. Given that the bulk of the drive is highway, you can maintain a consistent pace. Keep an eye on your fuel levels as services can become less frequent on rural interstates, especially on that long stretch of I 90.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 174.6 miles from Brandon, SD, or about 2h 46m into the drive.
The longest continuous stretch on this route runs about 344.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 77 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 174.6 miles or 2h 46m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 35m
Traffic, exits, and arrival timing usually matter more near Rapid Valley, SD than in the middle of the route.
Before You Leave
+
Open the route before leaving Brandon, SD so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Brandon, SD
This is one driving day of about 349.3 miles and 5h 36m.
Your first comfortable stop window is around 77 miles from Brandon, SD.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 90 for about 344.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 9
5 decision points cluster between mile 0 and 349 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip|~0m in|East Sylvan Circle
Turn right onto East Sylvan Circle
Navigation decision point
5
1.3 mi into trip|~2m in|I 90
Merge onto I 90
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
345.5 mi into trip|~5h 28m in
Take the exit toward US 16 Truck, ND 79 South: Mount Rushmore, Crazy Horse
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 16 Truck, ND 79 South: Mount Rushmore...
5
345.8 mi into trip|~5h 29m in
Keep slight left at fork
Highway fork - watch signs carefully
5
349 mi into trip|~5h 35m in|Sweetbriar Street
Turn right onto Sweetbriar Street
Navigation decision point
Fuel & Cost
Regular Gas
$58.83 one way
$117.66 round trip
$4.28/gal25.4 MPG avg122 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.51
$62.08
$124.15
premium
$5.08
$69.89
$139.78
diesel
$6.05
$83.17
$166.34
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$59
Meals
$25–$50
Total
$84–$109
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 122.2 kg one way.
Driving Electric?
About $37 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
104.8
1
$36.68
$16.77
Efficient EV
87.3
0
$30.56
$13.97
EV Truck/SUV
139.7
1
$48.90
$22.36
Gas CO2
122 kg
EV CO2
41 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Forecast as of Oct 17, 2026
Origin
Brandon, SD
Afternoon
in Brandon on Saturday
Local time
12:20 PM
CDT
Current temp
30°F
Widespread Frost
S 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 17 at 3:49AM CDT until October 17 at 9:00AM CDT by NWS Aberdeen SD
Freeze Warning
Freeze Warning issued October 17 at 2:49AM CDT until October 17 at 9:00AM CDT by NWS Sioux Falls SD
Destination
Rapid Valley, SD
Morning
in Rapid Valley on Saturday
Local time
11:20 AM
MDT
Current temp
41°F
Clear
SW 6 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 17 at 3:49AM CDT until October 17 at 9:00AM CDT by NWS Aberdeen SD
Freeze Warning
Freeze Warning issued October 17 at 2:49AM CDT until October 17 at 9:00AM CDT by NWS Sioux Falls SD
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
11 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 36m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Mount Rushmore National Memorial
National Memorial
Majestic figures of George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln, surrounded by the beauty of the Black Hills of South Dakota, tell the story of the birth, growth, devel...
20 mi from route
~49 min detour
Free
near mile 349.3
The rugged beauty of the Badlands draws visitors from around the world. These striking geologic deposits contain one of the world’s richest fossil beds. Ancient horses and rhinos once roamed here. The...
24 mi from route
~61 min detour
$30
near mile 289.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll be on highways for 99% of this 349.3-mile drive. The vast majority of your time will be spent on I 90, with a continuous stretch of 344.2 miles. North Elk Vale Road and North Splitrock Boulevard mark the end of the highway portion, which you'll encounter near the end of your trip. Expect a good amount of rural cruising with exits spaced out.
99% highway — fuel and pacing are the main things to plan.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 344.2 mi on I 90.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on I 90 and North Elk Vale Road. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near East Sylvan Circle.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 36m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (East Sylvan Circle): Navigation decision point; at 1.3 miles (I 90): Merge point - match speed before joining. Lane positioning matters here; at 345.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
The longest stretch is about 344.2 miles on I 90. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
Mostly yes along the main roads, but rural stretches through SD can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (East Sylvan Circle): Navigation decision point; at 1.3 miles (I 90): Merge point - match speed before joining. Lane positioning matters here; at 345.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Yes — Mount Rushmore National Memorial and Badlands National Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.6 hours each way, a round trip means 11.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Rapid Valley, SD before the return drive.
