Box Elder, SD to Webster, SD is 406.9 miles and takes about 6h 52m via I 90 and SD Highway 25, with a fuel budget near $62 and enough daylight to finish in a day. This trip stays within the Great Plains region, offering a straightforward drive across South Dakota. With 100% of the route on highways, you can expect consistent travel. This is a solid one-day option 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
203.4 miles from Box Elder, SD
A natural place for your longest stop of the day
, about 3h 12m into the drive
.
Main Roads
Road
Distance
Duration
I 90
282.4 mi
4h 24m
SD Highway 25
115.1 mi
2h 14m
SD Highway 34
6 mi
7m
US Highway 212
0.9 mi
1m
Highway 1416
0.9 mi
1m
South Main Street
0.5 mi
<1m
Liberty Boulevard
0.2 mi
<1m
Oak Street
<0.1 mi
<1m
Longest stretch:
I 90
— 282.4 mi, about 4h 24m
Traffic on I-90
Hour-of-day weekday pattern from 23 FHWA count stations on your route.
Peak
2 PM
~319 veh/hr typical
· worst 563
Quietest
2 AM
~22 veh/hr
Peak-to-quiet ratio
14.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 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 Box Elder, SD and Webster, SD.
1
Start on Front Street
94 ft·9 sec·Front Street
2
Turn left onto Oak Street
365 ft·18 sec·Oak Street
3
Turn right onto Highway 1416
0.9 mi·1 min·Highway 1416
4
Turn left onto Liberty Boulevard
0.2 mi·25 sec·Liberty Boulevard
5
Take the ramp
0.5 mi·1 min
6
Merge onto I 90; US 14
282 mi·4 hr 24 min·I 90; US 14
7
Take the exit
0.3 mi·47 sec
Toward SD 25: Emery, Farmer
8
Turn left onto SD 25
24 mi·27 min·SD Highway 25
9
Turn right onto SD 25; SD 34
6.0 mi·7 min·SD Highway 34
10
Turn left onto SD 25
60 mi·1 hr 10 min·SD Highway 25
11
At end of road, turn right onto US 212; SD 25
0.9 mi·1 min·US Highway 212
12
Turn left onto SD 25
31 mi·36 min·SD Highway 25
13
Continue on SD 25
0.5 mi·39 sec·South Main Street
14
Turn right onto East 7th Avenue
13 ft·0 sec·East 7th Avenue
15
Arrive at destination
East 7th Avenue
Trip Plan
Given the 6h 52m estimated drive time, leaving Box Elder in the morning will give you ample daylight to reach Webster. With only one recommended stop, it’s easy to break up the 406.9 miles. The bulk of the driving, 282.4 miles, is on I 90, so consider refueling before you get too far into that stretch to manage your $62 fuel budget. Pay attention to the transition from I 90 to SD Highway 25, as this is where the road profile changes.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 203.4 miles from Box Elder, SD, or about 3h 12m into the drive.
The longest continuous stretch on this route runs about 282.4 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 90 miles or 1h 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 203.4 miles or 3h 12m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 42m
Traffic, exits, and arrival timing usually matter more near Webster, SD than in the middle of the route.
Before You Leave
+
Open the route before leaving Box Elder, 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 Box Elder, SD
This is one driving day of about 406.9 miles and 6h 52m.
Your first comfortable stop window is around 90 miles from Box Elder, 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 282.4 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 12
5 decision points cluster between mile 0 and 374.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|Oak Street
Turn left onto Oak Street
Navigation decision point
4
0.1 mi into trip|~0m in|Highway 1416
Turn right onto Highway 1416
Navigation decision point
4
1 mi into trip|~2m in|Liberty Boulevard
Turn left onto Liberty Boulevard
Navigation decision point
5
284.1 mi into trip|~4h 28m in
Take the exit toward SD 25: Emery, Farmer
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward SD 25: Emery, Farmer
5
374.2 mi into trip|~6h 14m in|US 212; SD 25 / US Highway 212
At end of road, turn right onto US 212; SD 25 / US Highway 212
Navigation decision point
Fuel & Cost
Regular Gas
$67.65 one way
$135.30 round trip
$4.22/gal25.4 MPG avg142 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.60
$73.69
$147.38
premium
$5.18
$83.03
$166.06
diesel
$5.35
$85.71
$171.41
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$68
Meals
$25–$50
Total
$93–$118
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 142.4 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $43 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
122.1
1
$42.72
$19.53
Efficient EV
101.7
1
$35.60
$16.28
EV Truck/SUV
162.8
2
$56.97
$26.04
Gas CO2
142 kg
EV CO2
48 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 Jun 1, 2026
Origin
Box Elder, SD
Afternoon
in Box Elder on Wednesday
Local time
1:11 PM
MDT
Current temp
48°F
Mostly Clear
NW 6 mph1% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 10:28PM CDT until June 1 at 9:45AM CDT by NWS Aberdeen SD
Destination
Webster, SD
Afternoon
in Webster on Wednesday
Local time
2:11 PM
CDT
Current temp
56°F
Slight Chance Showers And Thunderstorms
SE 8 mph23% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 10:28PM CDT until June 1 at 9:45AM CDT by NWS Aberdeen 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 later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
8 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
6h 52m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
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.
Badlands National Park
National Park
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...
25 mi from route
~62 min detour
$30
near mile 42.1
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...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is entirely on highways, meaning you'll be cruising on paved roads for the full 406.9 miles. The longest continuous stretch is 282.4 miles on I 90, so plan for extended periods of highway driving before transitioning to surface roads. You'll notice consistent speeds and relatively few stops until you reach the latter part of your journey on SD Highway 25.
100% highway — fuel and pacing are the main things to plan.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 282.4 mi on I 90.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 90 and SD Highway 25. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Oak Street.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 6h 52m, endurance matters. Plan breaks every 2-3 hours. The 12 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: near the start (Oak Street): Navigation decision point; at 0.1 miles (Highway 1416): Navigation decision point; at 1 miles (Liberty Boulevard): Navigation decision point.
Elevation Profile
Gently rolling terrain
3,033 ft1,369 ft
Total Climb
488 ft
Total Descent
1,663 ft
Highest Point
3,033 ft
Elevation Range
1,663 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Box Elder, SD to Webster, SD, road signs begin pointing toward Farmer along the way.
The longest stretch is about 282.4 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 17 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Webster, SD before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
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. There are 17 rest areas along the route for bathroom stops.
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 (Oak Street): Navigation decision point; at 0.1 miles (Highway 1416): Navigation decision point; at 1 miles (Liberty Boulevard): Navigation decision point.
Yes — Badlands National Park and Mount Rushmore National Memorial. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.9 hours each way, a round trip means 13.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Webster, SD before the return drive.
