Origin
Lemay, MO
Late night in Lemay on Sunday
Local time
2:33 AM
CDT
Current temp
83°F
Unavailable
Live forecast
Trip from Lemay, MO to Castle Point, MO
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
32m
Distance
20.4 mi
33 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 30m
★
6 AM
0h 33m
8 AM
0h 38m
10 AM
0h 35m
12 PM
0h 34m
3 PM
0h 35m
5 PM
0h 38m
8 PM
0h 31m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Lemay, MO
Valeria Boltneva
Castle Point, MO
Gergely Meszárcsek
Trip Overview
Lemay, MO to Castle Point, MO is 20.4 miles and takes about 32 minutes via I 55 and Halls Ferry Road, with a fuel budget near $3 and enough daylight to finish in a day. This short trip stays entirely within Missouri, offering a straightforward drive through the Midwest region. You'll experience a mixed drive, primarily utilizing major expressways and local roads. Given its brief duration, this route is ideal for a quick excursion or an add-on to a larger journey, perfect for a single day of travel.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 55 | 6.7 mi | 8m |
| Mark Twain Expressway | 2.1 mi | 2m |
| Halls Ferry Road | 2.1 mi | 3m |
| Third Street Expressway | 2 mi | 2m |
| West Florissant Avenue | 1.9 mi | 3m |
| Andy Gammon Memorial Highway | 1.4 mi | 1m |
| Riverview Boulevard | 1.2 mi | 1m |
| Military Road | 0.7 mi | 1m |
Longest stretch:
I 55
— 6.7 mi, about 8m
Turn-by-Turn Driving Directions
Step-by-step road directions between Lemay, MO and Castle Point, MO.
1
Start on Rembold Avenue
198 ft
·
14 sec
·
Rembold Avenue
2
Turn left onto Placid Avenue
347 ft
·
15 sec
·
Placid Avenue
3
Turn left onto Gentry Avenue
0.2 mi
·
23 sec
·
Gentry Avenue
4
Continue on Military Road
0.7 mi
·
1 min
·
Military Road
5
At end of road, turn right onto MO 267
0.1 mi
·
21 sec
·
Lemay Ferry Road
6
Continue on Alabama Avenue
501 ft
·
21 sec
·
Alabama Avenue
7
Turn left onto Germania Street
0.5 mi
·
1 min
·
Germania Street
8
Take the ramp
0.2 mi
·
23 sec
Toward I 55 North
9
Merge onto I 55
6.7 mi
·
8 min
·
I 55
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 44
2.0 mi
·
2 min
·
Third Street Expressway
Toward I 44 North
11
Merge onto I 70
1.4 mi
·
1 min
·
Andy Gammon Memorial Highway
12
Continue on I 70
2.1 mi
·
2 min
·
Mark Twain Expressway
13
Take the exit
0.2 mi
·
24 sec
Exit 245B
Toward West Florissant Avenue
Use the straight / slight right lanes.
14
Turn straight onto West Florissant Avenue
1.9 mi
·
3 min
·
West Florissant Avenue
15
Turn right onto MO 367
1.2 mi
·
1 min
·
Riverview Boulevard
16
Enter roundabout onto Halls Ferry Road
504 ft
·
10 sec
·
Halls Ferry Road
17
Continue on Halls Ferry Road
2.0 mi
·
3 min
·
Halls Ferry Road
18
Turn right onto Chambers Road
0.4 mi
·
38 sec
·
Chambers Road
19
Turn left onto Lord Drive
0.5 mi
·
1 min
·
Lord Drive
20
Arrive at destination
Lord Drive
Heads-up: tricky spots
5 of 135 decision points cluster between mile 0 and 17.5 — 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
|
Placid Avenue
Turn left onto Placid Avenue
Navigation decision point
5
1.9 mi into trip
|
~4m in
|
I 55
Merge onto I 55
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
8.6 mi into trip
|
~13m in
|
I 44 / Third Street Expressway
Keep slight left at fork onto I 44 / Third Street Expressway toward I 44 North
Highway fork - watch signs carefully
Toward I 44 North
7
14.1 mi into trip
|
~20m in
Take the exit toward West Florissant Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 245B
Toward West Florissant Avenue
5
17.5 mi into trip
|
~27m in
|
Halls Ferry Road
Enter roundabout onto Halls Ferry Road
Roundabout - know your exit number before entering
Fuel & Cost
Regular Gas
$3.19 one way
$6.38 round trip
$3.97/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $3.50 | $7.00 |
| premium | $4.89 | $3.93 | $7.85 |
| diesel | $5.61 | $4.50 | $9.01 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 6.1 | 0 | $2.14 | $0.98 |
| Efficient EV | 5.1 | 0 | $1.78 | $0.82 |
| EV Truck/SUV | 8.2 | 0 | $2.86 | $1.31 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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.
Destination
Castle Point, MO
Late night in Castle Point on Sunday
Local time
2:33 AM
CDT
Current temp
58°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
25 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
32m 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?
This drive features a mixed profile, with 53% of the journey on highways, including a significant 6.7-mile stretch on I 55. You'll navigate both the Mark Twain Expressway and Halls Ferry Road, transitioning between faster-paced interstate driving and more local road conditions. Expect periods of steady, higher-speed travel interspersed with segments where you'll be navigating through more developed areas. The character of the drive shifts as you progress, offering a blend that keeps things from becoming monotonous.
53% highway, the rest on surface roads — varied driving throughout.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 6.7 mi on I 55.
How Hard Is This Drive?
6/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 13 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Placid Avenue.
Driving Effort
6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 20.4 miles you will encounter 13 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Placid Avenue): Navigation decision point; at 1.9 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 8.6 miles (I 44 / Third Street Expressway): Highway fork - watch signs carefully.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 32m. Total distance: 20.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
32m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (53%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 6.7 miles on I 55. 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 Castle Point, 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: near the start (Placid Avenue): Navigation decision point; at 1.9 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 8.6 miles (I 44 / Third Street Expressway): Highway fork - watch signs carefully.
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 Castle Point, 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, and NPS for national parks. See our methodology for refresh cadence and limitations.
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