The drive from Piedmont, MO to Castle Point, MO covers 143.3 miles and takes about 2h 58m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US 67, I 55, Rosa Parks Highway for much of the mileage,
and the overall profile is highway-focused drive.
The longest uninterrupted segment is about 81.3 miles on US 67.
At current regular gas prices, budget about $22.40 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
71.7 miles from Piedmont, MO
A natural place for your longest stop of the day
, about 1h 29m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 58m. Total distance: 143.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 58m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (84%). Some complex stretches to watch for.
Drive Character
This is a 2h 58m highway drive covering 143.3 miles, with most of the trip on US 67 and I 55. The longest continuous stretch is about 81.3 miles on US 67.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 67 is the longest continuous segment at about 81.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US 67 and I 55. You will hit about 14 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near MO 34; MO 49 / North Main Street.
Driving Effort5/10
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 143.3 miles you will encounter 14 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 (MO 34; MO 49 / North Main Street): Navigation decision point; at 14.7 miles: Navigation decision point; at 131.5 miles (I 44 / Third Street Expressway): Highway fork - watch signs carefully.
Critical Maneuvers
5 of 14 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
4
0 mi into trip|~0m in|MO 34; MO 49 / North Main Street
Turn right onto MO 34; MO 49 / North Main Street
Navigation decision point
4
14.7 mi into trip|~22m in
Turn left
Navigation decision point
5
131.5 mi into trip|~2h 38m 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
137 mi into trip|~2h 46m 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
140.4 mi into trip|~2h 52m in|Halls Ferry Road
Enter roundabout onto Halls Ferry Road
Roundabout - know your exit number before entering
Main Roads
Road
Distance
Duration
US 67
81.3 mi
1h 33m
I 55
20.5 mi
22m
Rosa Parks Highway
14 mi
17m
MO 34
13.7 mi
20m
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
Longest stretch:
US 67
— 81.3 mi, about 1h 33m
Turn-by-Turn Driving Directions
Step-by-step road directions between Piedmont, MO and Castle Point, MO.
1
Start on MO B
66 ft·4 sec·East Fir Street
2
Turn right onto MO 34; MO 49
0.9 mi·2 min·North Main Street
3
Turn right onto MO 34
14 mi·20 min·MO 34
4
Turn left
0.5 mi·1 min
5
Continue on this road
0.1 mi·15 sec·this road
6
Merge onto US 67
81 mi·1 hr 32 min·US 67
7
Keep slight right at fork onto US 67
0.3 mi·27 sec·US 67
8
Take the exit
0.3 mi·49 sec
Toward I 55 North: Saint Louis
9
Merge onto I 55
21 mi·22 min·I 55
10
Continue on I 55
14 mi·17 min·Rosa Parks Highway
Use the straight / slight right lanes.
11
Keep slight left at fork onto I 44
2.0 mi·2 min·Third Street Expressway
Toward I 44 North
12
Merge onto I 70
1.4 mi·1 min·Andy Gammon Memorial Highway
13
Continue on I 70
2.1 mi·2 min·Mark Twain Expressway
14
Take the exit
0.2 mi·24 sec
Exit 245BToward West Florissant AvenueUse the straight / slight right lanes.
15
Turn straight onto West Florissant Avenue
1.9 mi·3 min·West Florissant Avenue
16
Turn right onto MO 367
1.2 mi·1 min·Riverview Boulevard
17
Enter roundabout onto Halls Ferry Road
504 ft·10 sec·Halls Ferry Road
18
Continue on Halls Ferry Road
2.0 mi·3 min·Halls Ferry Road
19
Turn right onto Chambers Road
0.4 mi·38 sec·Chambers Road
20
Turn left onto Lord Drive
0.5 mi·1 min·Lord Drive
21
Arrive at destination
Lord Drive
Trip Plan
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 71.7 miles from Piedmont, MO, or about 1h 29m into the drive.
The longest continuous stretch on this route runs about 81.3 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 32 miles or 43m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 71.7 miles or 1h 29m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 21m
Traffic, exits, and arrival timing usually matter more near Castle Point, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Piedmont, MO 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.
Day 1
Settle into the route from Piedmont, MO
This is one driving day of about 143.3 miles and 2h 58m.
Your first comfortable stop window is around 32 miles from Piedmont, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 67 for about 81.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 71.7 mi from Piedmont, MO
· 1h 29m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Gateway Arch National Park
National Park
Gateway Arch National Park commemorates President Jefferson’s vision of a continental nation, the individuals and cultural groups who helped shape its history, St. Louis’ role in westward expansion, a...
Established by 1750, Ste. Geneviève was the first permanent European settlement in Missouri. Early French Canadian settlers were drawn here by the rich agricultural land known as Le Grand Champ (the B...
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$22.40 one way
$44.81 round trip
$3.97/gal25.4 MPG avg50 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$24.60
$49.20
premium
$4.89
$27.58
$55.15
diesel
$5.61
$31.64
$63.28
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$22
Meals
$25–$50
Total
$47–$72
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 50.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $15 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
43
0
$15.05
$6.88
Efficient EV
35.8
0
$12.54
$5.73
EV Truck/SUV
57.3
0
$20.06
$9.17
Gas CO2
50 kg
EV CO2
17 kg (66% 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 Apr 15, 2026
Origin
Piedmont, MO
Morning
in Piedmont on Friday
Local time
6:44 AM
CDT
Current temp
52°F
Unavailable
Live forecast
Destination
Castle Point, MO
Morning
in Castle Point on Friday
Local time
6:44 AM
CDT
Current temp
58°F
Unavailable
Live forecast
57°F
Arnold, MO
72 mi in
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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
6 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
2h 58m 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.
Frequently Asked Questions
The drive from Piedmont, MO to Castle Point, MO covers 143.3 miles and takes about 2h 58m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 67, I 55, Rosa Parks Highway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 71.7 miles from Piedmont, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $22.40 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This drive requires moderate attention. Across 143.3 miles you will encounter 14 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: near the start (MO 34; MO 49 / North Main Street): Navigation decision point; at 14.7 miles: Navigation decision point; at 131.5 miles (I 44 / Third Street Expressway): Highway fork - watch signs carefully.
The route from Piedmont, MO to Castle Point, MO does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
