Skip to main content

Trip from Castle Point, MO to Wentzville, MO

Pin this trip

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 4, 2026 · Editorial standards

Drive Time

48m

Distance

35.5 mi

57 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$6

one way

EV Charging

Unknown

Best Time to Leave

Save up to 12 min
4 AM
0h 45m ★
6 AM
0h 49m
8 AM
0h 57m
10 AM
0h 52m
12 PM
0h 51m
3 PM
0h 52m
5 PM
0h 57m
8 PM
0h 46m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Downtown Castle Point, MO, MO

Castle Point, MO

Gergely Meszárcsek

city in St. Charles County, Missouri, United States

Wentzville, MO

Wikimedia Commons

Trip Overview

The drive from Castle Point, MO to Wentzville, MO covers 35.5 miles and takes about 48m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 70, Rosemary Straub Davison Highway, New Halls Ferry Road for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 22.7 miles on I 70. At current regular gas prices, budget about $5.50 one way before food or hotel costs.

Main Roads

Road Distance Duration
I 70 22.7 mi 28m
Rosemary Straub Davison Highway 8.6 mi 10m
New Halls Ferry Road 0.7 mi 1m
Dunn Road 0.4 mi <1m
Halls Ferry Road 0.3 mi <1m
Edgefield Drive 0.3 mi 1m
Hudson Drive 0.3 mi 1m
Duchess Drive 0.2 mi <1m
Longest stretch: I 70 — 22.7 mi, about 28m

Traffic on I-70

Hour-of-day weekday pattern from 34 FHWA count stations on your route.

Peak

4 PM

~4,766 veh/hr typical · worst 5,506

Quietest

2 AM

~423 veh/hr

Peak-to-quiet ratio

11.3×

busier at peak than in the quiet hours

12a 6a noon 6p 11p

Averaged across 105 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 Castle Point, MO and Wentzville, MO.

1

Start on Lord Drive

284 ft · 14 sec · Lord Drive
2

Turn right onto Duchess Drive

0.2 mi · 53 sec · Duchess Drive
3

Turn right onto Edgefield Drive

0.3 mi · 1 min · Edgefield Drive
4

Turn left onto Hudson Drive

0.3 mi · 1 min · Hudson Drive
5

At end of road, turn right onto MO AC

0.3 mi · 29 sec · Halls Ferry Road
6

Keep slight left at fork onto MO AC

0.7 mi · 1 min · New Halls Ferry Road
7

Turn left onto Dunn Road

0.4 mi · 53 sec · Dunn Road
Use the left lane.
8

Take the ramp

0.3 mi · 33 sec
Toward I 270 West
9

Merge onto I 270

8.6 mi · 10 min · Rosemary Straub Davison Highway
Use the straight / slight right lanes.
10

Take the exit

0.3 mi · 25 sec
Exit 20A Toward I 70: Saint Louis, Kansas City
11

Continue on this road

0.5 mi · 42 sec · this road
Exit 20A-B Toward I 70: Saint Louis, Kansas City Use the slight left / slight right lanes.
12

Keep slight right at fork

0.5 mi · 41 sec
Exit 20B Toward I 70 West: Kansas City Use the slight right lane.
13

Merge onto I 70

23 mi · 28 min · I 70
Use the straight / slight right lanes.
14

Take the exit

0.2 mi · 23 sec
Exit 209 Toward MO Z
15

Enter roundabout onto South Church Street

20 ft · 0 sec · South Church Street
16

Continue on South Church Street

0.2 mi · 39 sec · South Church Street
17

Turn right onto West 4th Street

442 ft · 20 sec · West 4th Street
18

At end of road, turn left onto South Linn Avenue

0.1 mi · 26 sec · South Linn Avenue
19

Turn right onto East Allen Street

40 ft · 1 sec · East Allen Street
20

Arrive at destination

East Allen Street

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

city in and county seat of St. Charles County, Missouri, United States

Mid-route town

Meal stop

Saint Charles, MO

18 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

Lake Saint Louis, MO

Fuel and coffee

A short stop after about 35.5 miles helps settle the day before fatigue starts building.

Saint Charles, MO

Meal break

The midpoint is around 17.7 miles from Castle Point, MO, which is a good place for a longer meal and fuel stop.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Heads-up: tricky spots

5 of 17

5 decision points cluster between mile 0.1 and 35.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

5
0.1 mi into trip | ~0m in | Duchess Drive

Turn right onto Duchess Drive

Navigation decision point

5
0.5 mi into trip | ~2m in | Hudson Drive

Turn left onto Hudson Drive

Navigation decision point

6
11 mi into trip | ~17m in

Take the exit toward I 70: Saint Louis, Kansas City

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Exit 20A Toward I 70: Saint Louis, Kansas City
8
11.8 mi into trip | ~18m in

Keep slight right at fork toward I 70 West: Kansas City

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight right lane. Exit 20B Toward I 70 West: Kansas City
6
35.4 mi into trip | ~48m in | South Linn Avenue

At end of road, turn left onto South Linn Avenue

Complex interchange - multiple decisions in a short stretch

Fuel & Cost

Regular Gas

$5.50 one way

$11.01 round trip

$3.94/gal 25.4 MPG avg 12 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.32 $6.04 $12.07
premium $4.93 $6.89 $13.78
diesel $5.60 $7.83 $15.65

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$6

Estimated CO2 emission: 12.4 kg one way. Prices: EIA weekly data, 2026-08-31.

Driving Electric?

About $4 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 10.7 0 $3.73 $1.70
Efficient EV 8.9 0 $3.11 $1.42
EV Truck/SUV 14.2 0 $4.97 $2.27

Gas CO2

12 kg

EV CO2

4 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

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

Castle Point, MO

Afternoon in Castle Point on Friday

Local time

3:14 PM

CDT

Current temp

72°F

Unavailable

Live forecast

Destination

Wentzville, MO

Afternoon in Wentzville on Friday

Local time

3:14 PM

CDT

Current temp

69°F

Unavailable

Live forecast

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

3 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

48m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

35.5 mi in 48m, mostly highway — 22.7 mi of that is on I 70.

64% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 22.7 mi on I 70.

How Hard Is This Drive?

8/10

This is a straightforward highway drive that stays mostly on I 70 and Rosemary Straub Davison Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near Duchess Drive.

Driving Effort 8/10

Focused - busy navigation packed into a short drive

Balances navigation complexity with total wheel time.

This is a short but busy drive. With 17 decision points packed into just 35.5 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 48m.

Where does it get tricky?

The main spots that need attention: at 0.1 miles (Duchess Drive): Navigation decision point; at 0.5 miles (Hudson Drive): Navigation decision point; at 11 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.

Elevation Profile

Mostly flat terrain

631 ft 444 ft

Total Climb

440 ft

Total Descent

304 ft

Highest Point

631 ft

~36.2 mi in

Elevation Range

187 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 Castle Point, MO to Wentzville, MO, road signs begin pointing toward Kansas City along the way.

Kansas City

11 mi in | ~17m

About the Cities

Starting in Castle Point, MO

Full guide →

Arriving in Wentzville, MO

Full guide →

Founded 1855

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 48m. Total distance: 35.5 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

48m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (64%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 22.7 miles on I 70. The full list of main roads is in the Roads section above.

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 Wentzville, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 0.1 miles (Duchess Drive): Navigation decision point; at 0.5 miles (Hudson Drive): Navigation decision point; at 11 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.

Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Wentzville, MO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.

Was this helpful?

Thanks for your feedback!

Your tip has been submitted. Thanks!

/500

Explore More

Explore more options from Castle Point, MO or browse trips ending in Wentzville, MO.

Looking for more statewide routes? Browse MO road trips.