Origin
Deadwood, SD
Afternoon in Deadwood on Wednesday
Local time
3:41 PM
MDT
Current temp
71°F
Unavailable
Live forecast
Trip from Deadwood, SD to Watertown, SD
Last recalculated Apr 15, 2026
Drive Time
7h 35m
Distance
444.8 mi
716 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$70
one way
Best Time to Leave
4 AM
7h 26m
★
6 AM
7h 36m
8 AM
7h 55m
10 AM
7h 42m
12 PM
7h 40m
3 PM
7h 43m
5 PM
7h 54m
8 PM
7h 30m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Deadwood, SD
Alfo Medeiros
Watertown, SD
Wikimedia Commons
Trip Overview
This 444.8-mile journey from Deadwood, South Dakota, to Watertown, South Dakota, is a substantial drive, estimated to take around 7 hours and 35 minutes of pure travel time. Primarily utilizing I-90 and supplemented by SD 79 and SD Highway 25, this route is predominantly highway driving, making it feasible as a single-day trip. With a projected fuel cost of approximately $70, it’s a manageable expense for a full day on the road. You'll traverse the Great Plains region throughout, experiencing a consistent landscape. Plan for about 2 stops along the way to break up the 7.5-hour travel.
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
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
222.4 miles from Deadwood, SD
A natural place for your longest stop of the day , about 3h 36m into the drive .
Drive Character
Expect a highway-focused experience for 95% of this 444.8-mile route. The majority of your time will be spent on I-90, including a significant uninterrupted stretch of 232.3 miles. While the interstate provides efficient travel, be prepared for long periods of consistent driving. The inclusion of SD 79 and SD Highway 25 offers brief diversions from the interstate, potentially introducing slightly different driving conditions before you rejoin the main highway corridors. This drive emphasizes forward momentum across the South Dakota landscape.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 19 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 90 is the longest continuous segment at about 232.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 90 and SD 79. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Main Street.
Route Complexity
4/10
Easy - simple navigation with a manageable amount of wheel time
The route itself is not hard, but at 7h 35m, endurance matters. Plan breaks every 2-3 hours. The 10 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: near the start (Main Street): Navigation decision point; at 0.1 miles (Deadwood Street): Navigation decision point; at 12.1 miles (SD 79): Exit ramp - move to the correct lane early.
Critical Maneuvers
5 of 10 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0 mi into trip
|
~0m in
|
Main Street
Turn left onto Main Street
Navigation decision point
5
0.1 mi into trip
|
~0m in
|
Deadwood Street
Turn left onto Deadwood Street
Navigation decision point
4
12.1 mi into trip
|
~14m in
|
SD 79
Take the exit onto SD 79
Exit ramp - move to the correct lane early
5
332 mi into trip
|
~5h 19m 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
422.2 mi into trip
|
~7h 5m 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
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 Deadwood, SD to Watertown, SD, road signs begin pointing toward Farmer along the way.
Farmer
332 mi in
|
~5h 19m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 90 | 232.3 mi | 3h 37m |
| SD 79 | 87.6 mi | 1h 26m |
| SD Highway 25 | 83.8 mi | 1h 38m |
| US Highway 212 | 14.5 mi | 18m |
| Main Street | 9.4 mi | 11m |
| 9th Avenue Southwest | 6.4 mi | 8m |
| SD Highway 34 | 6 mi | 7m |
| Boulder Canyon Road | 1.1 mi | 1m |
Longest stretch:
I 90
— 232.3 mi, about 3h 37m
Turn-by-Turn Driving Directions
Step-by-step road directions between Deadwood, SD and Watertown, SD.
1
Start on Lee Street
184 ft
·
13 sec
·
Lee Street
2
Turn left onto Main Street
344 ft
·
16 sec
·
Main Street
3
Turn left onto Deadwood Street
219 ft
·
12 sec
·
Deadwood Street
4
Turn left onto US 14A; US 85
0.4 mi
·
32 sec
·
Pioneer Way
5
Continue on US 14A; US 85
9.3 mi
·
11 min
·
Main Street
6
Continue on US 14A
1.1 mi
·
1 min
·
Boulder Canyon Road
7
Continue on US 14A
1.1 mi
·
1 min
·
Lazelle Street
8
Take the exit onto SD 79
88 mi
·
1 hr 26 min
·
SD 79
9
Continue on I 90
232 mi
·
3 hr 37 min
·
I 90
10
Take the exit
0.3 mi
·
47 sec
Toward SD 25: Emery, Farmer
11
Turn left onto SD 25
24 mi
·
27 min
·
SD Highway 25
12
Turn right onto SD 25; SD 34
6.0 mi
·
7 min
·
SD Highway 34
13
Turn left onto SD 25
60 mi
·
1 hr 10 min
·
SD Highway 25
14
At end of road, turn right onto US 212; SD 25
3.9 mi
·
5 min
·
US Highway 212
15
Continue on US 212
1.0 mi
·
1 min
·
4th Street
16
Continue on US 212
11 mi
·
12 min
·
US Highway 212
17
Continue on US 212
6.4 mi
·
8 min
·
9th Avenue Southwest
18
Turn left onto South Broadway
0.7 mi
·
1 min
·
South Broadway
19
Arrive at destination
South Broadway
Trip Plan
To make the most of this 7-hour, 35-minute drive, consider an early morning departure from Deadwood to ensure you arrive in Watertown with ample daylight. With only 2 recommended stops, you can strategically place them to manage your time and energy. Keep an eye on your fuel gauge, especially during the longest stretch on I-90, as services can be spaced out. Given the route's 95% highway share, you'll cover ground quickly, but remember to take advantage of those planned stops for rest and stretching. A concrete tip: utilize the longer 232.3-mile stretch on I-90 to get into a rhythm, saving your planned stops for when you truly need a break or a meal.
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 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 222.4 miles from Deadwood, SD, or about 3h 36m into the drive.
The longest continuous stretch on this route runs about 232.3 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 98 miles or 1h 39m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 222.4 miles or 3h 36m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 21m
Traffic, exits, and arrival timing usually matter more near Watertown, SD than in the middle of the route.
Before You Leave
+
Open the route before leaving Deadwood, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Deadwood, SD
This is one driving day of about 444.8 miles and 7h 35m.
Your first comfortable stop window is around 98 miles from Deadwood, SD.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 90 for about 232.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 222.4 mi from Deadwood, SD · 3h 36m into the drive
Mid-route town
Meal stop
222 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 98 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 222.4 miles from Deadwood, SD, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 90 if your tank is already low. That segment runs about 232.3 miles.
Arriving in Watertown, SD
The final approach into Watertown, SD usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Watertown, SD.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$69.54 one way
$139.08 round trip
$3.97/gal
25.4 MPG avg
156 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $76.35 | $152.70 |
| premium | $4.89 | $85.60 | $171.20 |
| diesel | $5.61 | $98.21 | $196.41 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$70
Meals
$25–$50
Total
$95–$120
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 155.6 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $47 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 133.4 | 1 | $46.70 | $21.35 |
| Efficient EV | 111.2 | 1 | $38.92 | $17.79 |
| EV Truck/SUV | 177.9 | 2 | $62.27 | $28.47 |
Gas CO2
156 kg
EV CO2
52 kg (67% 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.
Destination
Watertown, SD
Afternoon in Watertown on Wednesday
Local time
4:41 PM
CDT
Current temp
70°F
Unavailable
Live forecast
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 35m 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.
Frequently Asked Questions
The drive from Deadwood, SD to Watertown, SD covers 444.8 miles and takes about 7h 35m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 90, SD 79, SD Highway 25. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 222.4 miles from Deadwood, SD. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $69.54 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
The route itself is not hard, but at 7h 35m, endurance matters. Plan breaks every 2-3 hours. The 10 decision points are all manageable with basic attention.
The main spots that need attention: near the start (Main Street): Navigation decision point; at 0.1 miles (Deadwood Street): Navigation decision point; at 12.1 miles (SD 79): Exit ramp - move to the correct lane early.
On the drive from Deadwood, SD to Watertown, SD, road signs begin pointing toward Farmer along the way.
Was this route helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From Watertown, SD
More trips to Watertown, SD
Explore more options from Deadwood, SD or browse trips ending in Watertown, SD.
Looking for more statewide routes? Browse SD road trips.
Explore maps for Deadwood, SD or Watertown, SD on MapSof.net.