Hercules, CA to Riverside, CA is 434.4 miles and takes about 8h 12m via Westside Freeway and I 5 Truck, with a fuel budget near $98 and enough daylight to finish in a day. This drive spans the Pacific Coast region of California, taking you from the Bay Area down towards Southern California. Most of the route is highway driving, so expect a relatively direct path. With a recommended two days for this trip, you'll have ample time to break up the drive comfortably. Consider this route if you prefer a straightforward, predominantly freeway-based journey.
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
217.2 miles from Hercules, CA
A natural place for your longest stop of the day
, about 4h into the drive
.
Main Roads
Road
Distance
Duration
Westside Freeway
224.4 mi
4h
I 5 Truck
58.4 mi
1h 6m
Foothill Freeway
44 mi
50m
Arthur H. Breed Junior Freeway
19.2 mi
22m
William Elton Brown Freeway
17 mi
18m
Donald D Doyle Highway
14.8 mi
17m
John Muir Parkway
12.8 mi
15m
Pomona Freeway
12 mi
13m
Longest stretch:
Westside Freeway
— 224.4 mi, about 4h
Traffic on I-5
Hour-of-day weekday pattern from 162 FHWA count stations on your route.
Peak
2 PM
~1,824 veh/hr typical
· worst 2,650
Quietest
2 AM
~367 veh/hr
Peak-to-quiet ratio
5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 89 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 Hercules, CA and Riverside, CA.
1
Start on Railroad Avenue
0.2 mi·33 sec·Railroad Avenue
2
Continue on Bayfront Boulevard
0.3 mi·39 sec·Bayfront Boulevard
3
Continue on John Muir Parkway
13 mi·15 min·John Muir Parkway
Use the straight / right lanes.
4
Take the exit
0.6 mi·1 min
Exit 12BToward I 680 South: San JoseUse the straight / slight right lanes.
5
Merge onto I 680
2.5 mi·2 min·Senator Daniel E Boatwright Highway
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 680
4.8 mi·5 min·Senator Daniel E Boatwright Highway
Use the straight / slight right lanes.
7
Continue on I 680
1.4 mi·1 min·Donald D Doyle Highway
8
Keep slight right at fork onto I 680
13 mi·15 min·Donald D Doyle Highway
Use the straight / slight right lanes.
9
Take the exit
0.3 mi·33 sec
Exit 30AToward I 580 East: Livermore, StocktonUse the straight / slight right lanes.
10
Keep slight left at fork
0.7 mi·1 min
Toward I 580 East: Livermore, StocktonUse the straight / slight right lanes.
11
Keep slight left at fork
0.3 mi·38 sec
Toward I 580: StocktonUse the straight / slight right lanes.
12
Merge onto I 580
1.4 mi·1 min·Arthur H. Breed Junior Freeway
13
Keep slight right at fork onto I 580
18 mi·20 min·Arthur H. Breed Junior Freeway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 580
11 mi·11 min·William Elton Brown Freeway
15
Keep slight left at fork onto I 580
5.9 mi·6 min·William Elton Brown Freeway
16
Merge onto I 5
224 mi·4 hr·Westside Freeway
Use the straight / slight right lanes.
17
Keep slight right at fork onto I 5 Truck
58 mi·1 hr 6 min·I 5 Truck
Use the straight / slight right lanes.
18
Keep slight left at fork onto I 5
2.0 mi·2 min·Golden State Freeway
Use the straight / slight right lanes.
19
Take the exit
0.3 mi·17 sec
Exit 161AToward I 210 East: PasadenaUse the slight right lane.
20
Continue on I 210
24 mi·28 min·Foothill Freeway
Use the straight / slight right lanes.
21
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.
22
Keep slight right at fork onto I 210
0.5 mi·32 sec·Foothill Freeway
23
Take the exit
0.9 mi·1 min
Exit 44AToward CA 57 South: Santa AnaUse the slight right lane.
24
Continue on CA 57
3.2 mi·3 min·Orange Freeway
Use the straight / slight right lanes.
25
Take the exit
1.1 mi·2 min
Exit 22CToward CA 71: CoronaUse the slight right lane.
26
Continue on CA 71
3.1 mi·3 min·Chino Valley Freeway
Use the straight / slight right lanes.
27
Take the exit
1.4 mi·2 min
Toward CA 60 East: RiversideUse the slight right lane.
28
Merge onto CA 60
12 mi·13 min·Pomona Freeway
Use the straight / slight right lanes.
29
Take the exit
0.5 mi·1 min
Exit 42Toward Van Buren Boulevard, Etiwanda AvenueUse the straight / slight right lanes.
30
Turn straight onto Mission Boulevard
0.2 mi·15 sec·Mission Boulevard
31
Continue on Van Buren Boulevard
6.1 mi·8 min·Van Buren Boulevard
Use the straight lane.
32
Turn left onto Central Avenue
3.6 mi·6 min·Central Avenue
Use the left lane.
33
Turn sharp right
171 ft·12 sec
34
Arrive at destination
Trip Plan
Given the 8h 12m estimated drive time, this route is best tackled over two days. Plan to depart early in the morning to maximize daylight, especially if you decide to drive it straight through. With two recommended stops, you can comfortably divide the 434.4 miles. Consider stopping around the halfway point, roughly 200-220 miles in, to rest and refuel. Keep an eye on your fuel gauge, as the $98 estimated cost suggests a significant distance between readily available services on some highway stretches.
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 217.2 miles from Hercules, CA, or about 4h into the drive.
The longest continuous stretch on this route runs about 224.4 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 96 miles or 1h 50m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 217.2 miles or 4h 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 217.2 miles or 4h
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 6h 54m
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 Hercules, 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 Hercules, CA
Aim for roughly 217 miles and 4.1 hours of wheel time on this day.
Day 2
Finish the approach into Riverside, CA
Aim for roughly 217 miles and 4.1 hours of wheel time on this day.
Your first comfortable stop window is around 96 miles from Hercules, 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 224.4 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 25
5 decision points cluster between mile 13.3 and 424.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
13.3 mi into trip|~16m in
Take the exit toward I 680 South: San Jose
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 12B
Toward I 680 South: San Jose
8
36.1 mi into trip|~43m in
Take the exit toward I 580 East: Livermore, Stockton
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 30A
Toward I 580 East: Livermore, Stockton
8
36.3 mi into trip|~43m in
Keep slight left at fork toward I 580 East: Livermore, Stockton
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 580 East: Livermore, Stockton
8
383 mi into trip|~7h 4m 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,...
8
424.1 mi into trip|~7h 55m in
Take the exit toward Van Buren Boulevard, Etiwanda Avenue
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 42
Toward Van Buren Boulevard, Etiwanda Avenue
Fuel & Cost
Regular Gas
$98.97 one way
$197.94 round trip
$5.79/gal25.4 MPG avg152 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.96
$101.91
$203.83
premium
$6.14
$105.01
$210.02
diesel
$5.97
$102.05
$204.10
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$99
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$229–$339
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 152 kg one way.
Prices: EIA weekly data, 2026-09-07.
Driving Electric?
About $46 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
130.3
1
$45.61
$20.85
Efficient EV
108.6
1
$38.01
$17.38
EV Truck/SUV
173.8
2
$60.82
$27.80
Gas CO2
152 kg
EV CO2
51 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 Sep 4, 2026
Origin
Hercules, CA
Afternoon
in Hercules on Friday
Local time
1:52 PM
PDT
Current temp
56°F
Partly Cloudy
WSW 7 mph0% chanceLive forecast
Lake Wind Advisory
Lake Wind Advisory issued September 4 at 2:02AM PDT until September 4 at 9:00PM PDT by NWS Reno NV
Beach Hazards Statement
Beach Hazards Statement issued September 3 at 11:26PM PDT until September 7 at 11:00PM PDT by NWS Eureka CA
Destination
Riverside, CA
Afternoon
in Riverside on Friday
Local time
1:52 PM
PDT
Current temp
60°F
Mostly Clear
N 0 to 5 mph0% chanceLive forecast
Lake Wind Advisory
Lake Wind Advisory issued September 4 at 2:02AM PDT until September 4 at 9:00PM PDT by NWS Reno NV
Beach Hazards Statement
Beach Hazards Statement issued September 3 at 11:26PM PDT until September 7 at 11:00PM PDT by NWS Eureka 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
4 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
8h 12m 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.
Port Chicago Naval Magazine National Memorial
National Memorial
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two s...
Rosie the Riveter WWII Home Front National Historical Park
National Historical Park
Celebrate and honor the contributions and sacrifices of American civilians on the WWII home front. Discover how diverse communities lived, worked, and interacted. Many faces, many stories, many truths...
Established in 1988, San Francisco Maritime National Historical Park celebrates America’s maritime heritage on the Pacific Coast. Our 50-acre park has grown around Aquatic Park Cove, a protected area...
Walk among old growth coast redwoods, cooling their roots in the fresh water of Redwood Creek and lifting their crowns to reach the sun and fog. Federally protected as a National Monument since 1908,...
Experience a park so rich it supports 19 distinct ecosystems with over 2,000 plant and animal species. Go for a hike, enjoy a vista, have a picnic or learn about the centuries of overlapping history f...
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...
23 mi from route
~57 min detour
Free
near mile 359.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly highway, with 91% of the 434.4 miles on freeways. You'll encounter a longest stretch of 224.4 miles on the Westside Freeway, indicating extended periods of consistent cruising. The transition from highway to surface roads will occur after this significant freeway segment. Expect to notice the dense exit patterns typical of major freeway corridors for much of the trip.
91% highway — fuel and pacing are the main things to plan.
34 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 224.4 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 13.3 miles in.
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 25 significant decision points across 434.4 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 13.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 36.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 36.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
3,345 ft72 ft
Total Climb
3,959 ft
Total Descent
3,202 ft
Highest Point
3,345 ft
~310.3 mi in
Elevation Range
3,274 ft
Notable High Points
3,345 ft at ~310.3 miles+1,772 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Hercules, CA and Riverside, CA, road signs point toward Stockton and Ventura.
Pinole is in the north of Contra Costa County in the San Francisco Bay Area in California on the southern shore of San Pablo Bay. Hercules is a suburban community next door. Neither of them have much to attract tourists, but they do have a selection of restaurants as well as walking and biking paths through the wetlands along the bay.
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 224.4 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 217 miles on day one.
Yes — we found about 35 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 35 rest areas along the route for bathroom stops.
The main spots that need attention: at 13.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 36.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 36.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Port Chicago Naval Magazine National Memorial, Rosie the Riveter WWII Home Front National Historical Park and San Francisco Maritime National Historical Park (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 8.2 hours each way, a round trip means 16.4 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.
