This 491.8-mile drive from Grass Valley, CA to Riverside, CA will take you approximately 9 hours and 19 minutes to complete. With a highway share of 94%, it's a predominantly highway-focused route. Given the duration, it's best split over two days, with an estimated fuel cost of $113. You'll be making about 2 stops along the way. The longest stretch without a break is 296.3 miles, so planning your overnight stop strategically is key. This trip cuts across California, offering a straightforward journey from the Pacific Coast region to its southern end.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
245.9 miles from Grass Valley, CA
A natural place for your longest stop of the day
, about 4h 36m into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
296.3 mi
5h 19m
I 5 Truck
58.4 mi
1h 6m
Foothill Freeway
44 mi
50m
Alan S. Hart Freeway
16.8 mi
19m
Golden Center Freeway
14.9 mi
19m
Pomona Freeway
12 mi
13m
Capital City Freeway
10.6 mi
11m
Grass Valley Highway
8 mi
11m
Longest stretch:
Westside Freeway
— 296.3 mi, about 5h 19m
Traffic on I-5
Hour-of-day weekday pattern from 165 FHWA count stations on your route.
Peak
3 PM
~3,871 veh/hr typical
· worst 5,154
Quietest
2 AM
~553 veh/hr
Peak-to-quiet ratio
7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 44 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 Grass Valley, CA and Riverside, CA.
1
Start on Stewart Street
117 ft·11 sec·Stewart Street
2
Turn left onto East Main Street
342 ft·13 sec·East Main Street
3
Turn left onto South Auburn Street
0.2 mi·26 sec·South Auburn Street
4
Take the ramp
0.2 mi·15 sec
5
Merge onto CA 20; CA 49
15 mi·19 min·Golden Center Freeway
Use the straight lane.
6
Continue on CA 49
1.1 mi·1 min·Grass Valley Highway
7
Enter roundabout onto CA 49
107 ft·3 sec·Grass Valley Highway
8
Continue on CA 49
1.3 mi·1 min·Grass Valley Highway
9
Enter roundabout onto CA 49
106 ft·3 sec·Grass Valley Highway
10
Continue on CA 49
5.6 mi·9 min·Grass Valley Highway
Use the left lane.
11
Take the ramp
0.3 mi·32 sec
Toward I 80 West: Sacramento
12
Merge onto I 80
17 mi·19 min·Alan S. Hart Freeway
Use the straight / slight right lanes.
13
Continue on I 80
7.1 mi·8 min·Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 80 Business
4.9 mi·5 min·Capital City Freeway
Exit 95Toward I 80 Business West: SacramentoUse the straight / slight right lanes.
15
Keep slight left at fork onto I 80 Business
3.7 mi·4 min·Capital City Freeway
Use the straight / slight right lanes.
16
Keep slight right at fork onto I 80 Business
1.9 mi·2 min·Capital City Freeway
Toward US 50 East, I 80 West: South Lake Tahoe, San FranciscoUse the straight / slight right lanes.
17
Take the exit
0.2 mi·15 sec
Exit 4AToward I 5: Los Angeles, ReddingUse the straight / slight right lanes.
18
Keep slight left at fork
0.8 mi·1 min
Exit 4AToward I 5 South: Los AngelesUse the slight left lane.
19
Merge onto I 5
59 mi·1 hr 5 min·Westside Freeway
Use the straight / slight right lanes.
20
Keep slight left at fork onto I 5
0.8 mi·48 sec·Westside Freeway
21
Keep slight left at fork onto I 5
237 mi·4 hr 13 min·Westside Freeway
Use the straight / slight right lanes.
22
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
23
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
24
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
25
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
26
Keep slight right at fork onto I 210
19 mi·22 min·Foothill Freeway
Toward CA 134 West, I 210 East: San Bernardino, VenturaUse the slight right lane.
27
Keep slight right at fork onto I 210
0.5 mi·32 sec·Foothill Freeway
28
Take the exit
0.9 mi·1 min
Exit 44AToward CA 57 South: Santa AnaUse the slight right lane.
29
Continue on CA 57
3.2 mi·3 min·Orange Freeway
Use the straight / slight right lanes.
30
Take the exit
1.1 mi·2 min
Exit 22CToward CA 71: CoronaUse the slight right lane.
31
Continue on CA 71
3.1 mi·3 min·Chino Valley Freeway
Use the straight / slight right lanes.
32
Take the exit
1.4 mi·2 min
Toward CA 60 East: RiversideUse the slight right lane.
33
Merge onto CA 60
12 mi·13 min·Pomona Freeway
Use the straight / slight right lanes.
34
Take the exit
0.5 mi·1 min
Exit 42Toward Van Buren Boulevard, Etiwanda AvenueUse the straight / slight right lanes.
35
Turn straight onto Mission Boulevard
0.2 mi·15 sec·Mission Boulevard
36
Continue on Van Buren Boulevard
6.1 mi·8 min·Van Buren Boulevard
Use the straight lane.
37
Turn left onto Central Avenue
3.6 mi·6 min·Central Avenue
Use the left lane.
38
Turn sharp right
171 ft·12 sec
39
Arrive at destination
Trip Plan
For this 9-hour, 19-minute drive, splitting the journey over two days is highly recommended to avoid fatigue, especially with a longest stretch of 296.3 miles. Aim to depart early to maximize daylight and consider breaking your trip around the halfway point. With an estimated fuel cost of $113, keep an eye on your fuel gauge, particularly during the longer stretches. Planning your two stops in advance will ensure you have convenient places to rest and refuel, making the most of your 491.8-mile adventure.
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 245.9 miles from Grass Valley, CA, or about 4h 36m into the drive.
The longest continuous stretch on this route runs about 296.3 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 108 miles or 2h 8m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 245.9 miles or 4h 36m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 245.9 miles or 4h 36m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 8h 1m
Traffic, exits, and arrival timing usually matter more near Riverside, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Grass Valley, CA 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.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Grass Valley, CA
Aim for roughly 246 miles and 4.7 hours of wheel time on this day.
Day 2
Finish the approach into Riverside, CA
Aim for roughly 246 miles and 4.7 hours of wheel time on this day.
Your first comfortable stop window is around 108 miles from Grass Valley, CA.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Westside Freeway for about 296.3 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 29
5 decision points cluster between mile 47.5 and 440.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
47.5 mi into trip|~1h in|I 80 Business / Capital City Freeway
Keep slight right at fork onto I 80 Business / Capital City Freeway toward I 80 Business West: Sacramento
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 95
Toward I 80 Business West: Sacramento
8
56.1 mi into trip|~1h 10m in|I 80 Business / Capital City Freeway
Keep slight right at fork onto I 80 Business / Capital City Freeway toward US 50 East, I 80 West: South Lake Tahoe, San Francisco
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward US 50 East, I 80 West: South Lake Tahoe,...
8
58.1 mi into trip|~1h 12m in
Take the exit toward I 5: Los Angeles, Redding
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.
Exit 4A
Toward I 5: Los Angeles, Redding
8
58.2 mi into trip|~1h 12m in
Keep slight left at fork toward I 5 South: Los Angeles
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Exit 4A
Toward I 5 South: Los Angeles
8
440.4 mi into trip|~8h 11m in|I 210 / Foothill Freeway
Keep slight right at fork onto I 210 / Foothill Freeway toward CA 134 West, I 210 East: San Bernardino, Ventura
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward CA 134 West, I 210 East: San Bernardino,...
Fuel & Cost
Regular Gas
$102.89 one way
$205.78 round trip
$5.31/gal25.4 MPG avg172 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$106.86
$213.72
premium
$5.67
$109.69
$219.37
diesel
$4.80
$92.86
$185.72
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$103
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$233–$343
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 172.1 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $52 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
147.5
1
$51.64
$23.61
Efficient EV
123
1
$43.03
$19.67
EV Truck/SUV
196.7
2
$68.85
$31.48
Gas CO2
172 kg
EV CO2
58 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 Jul 16, 2026
Origin
Grass Valley, CA
Late night
in Grass Valley on Sunday
Local time
1:20 AM
PDT
Current temp
89°F
Sunny
SW 6 mph0% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 16 at 3:22PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
Destination
Riverside, CA
Late night
in Riverside on Sunday
Local time
1:20 AM
PDT
Current temp
99°F
Sunny
W 10 to 15 mph3% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 16 at 3:22PM PDT by NWS San Diego CA
Extreme Heat Warning
Extreme Heat Warning issued July 16 at 1:29PM PDT until July 16 at 8:00PM PDT by NWS San Diego CA
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
10 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
9h 19m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
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.
Santa Monica Mountains National Recreation Area
National Recreation Area
The Santa Monica Mountains offer easy access to surprisingly wild places. Experience the famous beaches of Malibu or explore more than 500 miles of trails. The park abounds with historical and cultura...
25 mi from route
~61 min detour
Free
near mile 407
Yes, we can! Widely recognized as the most important Latino leader in the United States during the twentieth century, Cesar Chavez led farm workers and supporters in the establishment of the country's...
27 mi from route
~67 min detour
Free
near mile 356.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-focused experience for 94% of this 491.8-mile journey, primarily utilizing the Westside Freeway, I-5 Truck, and Foothill Freeway. The character of the drive is largely consistent, with a significant uninterrupted stretch of 296.3 miles on the Westside Freeway. This means long periods of steady driving, so be prepared for a consistent pace. While the scenery might not be the main draw, the efficiency of the highway system makes for a predictable and manageable drive.
94% highway — fuel and pacing are the main things to plan.
39 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 296.3 mi on Westside Freeway.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on Westside Freeway and I 5 Truck. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 47.5 miles in near I 80 Business / Capital City Freeway.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 29 significant decision points across 491.8 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 47.5 miles (I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 56.1 miles (I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 58.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
2,790 ft18 ft
Total Climb
3,388 ft
Total Descent
4,972 ft
Highest Point
2,790 ft
~386.4 mi in
Elevation Range
2,772 ft
Notable High Points
2,790 ft at ~386.4 miles+1,585 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Grass Valley, CA and Riverside, CA, road signs point toward San Francisco, Redding and Ventura.
Riverside is a city in Riverside County in California. With a population of over 300,000, the city plays host to a diverse cross-section of people and has a rich history. Riverside is approximately 55 miles east of downtown Los Angeles. It is a center for higher education, with one community college, a large state university, and two private universities. A hub of regional commerce and transportation, it is a city with an intriguing past and a promising future, and is worth a visit.
Top landmarks
•Mission Inn — hotel in Riverside, California
•Universalist Unitarian Church of Riverside — church building in Riverside, California, USA
•First Congregational Church of Riverside — church building in Riverside, California, United States of America
The longest stretch is about 296.3 miles on Westside Freeway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 246 miles on day one.
Yes — we found about 38 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 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 Riverside, CA 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 2 meaningful breaks. There are 38 rest areas along the route for bathroom stops.
The main spots that need attention: at 47.5 miles (I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 56.1 miles (I 80 Business / Capital City Freeway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 58.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Santa Monica Mountains National Recreation Area and César E. Chávez National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 9.3 hours each way, a round trip means 18.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Riverside, CA before the return drive.
