Origin
Florissant, MO
Morning in Florissant on Saturday
Local time
7:27 AM
CDT
Current temp
83°F
Unavailable
Live forecast
Trip from Florissant, MO to Barnhart, MO
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
53m
Distance
40.6 mi
65 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 49m
★
6 AM
0h 54m
8 AM
1h 2m
10 AM
0h 57m
12 PM
0h 56m
3 PM
0h 57m
5 PM
1h 2m
8 PM
0h 51m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Florissant, MO
Wikimedia Commons
Barnhart, MO
Wikimedia Commons
Trip Overview
The drive from Florissant, MO to Barnhart, MO covers 40.6 miles and takes about 53m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Rosemary Straub Davison Highway, Police Officer Steven Jarvis Memorial Highway, Officer Thomas G. Smith, Jr. Memorial Highway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 24.3 miles on Rosemary Straub Davison Highway. At current regular gas prices, budget about $6.35 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 53m. Total distance: 40.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
53m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
Expect a 53m drive with frequent turns across 40.6 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Rosemary Straub Davison Highway is the longest continuous segment at about 24.3 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.1 miles in near I 270 / Rosemary Straub Davison Highway.
Driving Effort
7/10
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 10 decision points packed into just 40.6 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 53m.
Where does it get tricky?
The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 27.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 27.7 miles: Highway fork - watch signs carefully.
Critical Maneuvers
5 of 10 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
3.1 mi into trip
|
~6m in
|
I 270 / Rosemary Straub Davison Highway
Merge onto I 270 / Rosemary Straub Davison Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
27.4 mi into trip
|
~36m in
Take the exit toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
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 1A
Toward I 55, US 61, US 67: Saint Louis, Memphis...
5
27.7 mi into trip
|
~36m in
Keep slight right at fork toward I 55 South: Memphis
Highway fork - watch signs carefully
Toward I 55 South: Memphis
8
39.1 mi into trip
|
~50m in
Take the exit toward MO M: Barnhart, Antonia
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 185
Toward MO M: Barnhart, Antonia
6
39.5 mi into trip
|
~50m in
|
MO M
Turn left onto MO M
Lane positioning matters here
Use the left lane.
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 Florissant, MO to Barnhart, MO, road signs begin pointing toward Memphis along the way.
Memphis
27.4 mi in
|
~36m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Rosemary Straub Davison Highway | 24.3 mi | 30m |
| Police Officer Steven Jarvis Memorial Highway | 7.7 mi | 8m |
| Officer Thomas G. Smith, Jr. Memorial Highway | 1.8 mi | 2m |
| Lindbergh Boulevard | 1.7 mi | 3m |
| Rosa Parks Highway | 1.5 mi | 1m |
| Washington Street | 1 mi | 1m |
| MO M | 0.7 mi | 1m |
| US 61 | 0.2 mi | <1m |
Longest stretch:
Rosemary Straub Davison Highway
— 24.3 mi, about 30m
Turn-by-Turn Driving Directions
Step-by-step road directions between Florissant, MO and Barnhart, MO.
1
Start on North New Florissant Road
87 ft
·
5 sec
·
North New Florissant Road
2
Turn right onto Washington Street
1.0 mi
·
1 min
·
Washington Street
3
Turn left onto US 67
1.7 mi
·
3 min
·
Lindbergh Boulevard
4
Take the ramp
0.4 mi
·
46 sec
Use the right lane.
5
Merge onto I 270
24 mi
·
30 min
·
Rosemary Straub Davison Highway
Use the straight / slight right lanes.
6
Take the exit
0.4 mi
·
27 sec
Exit 1A
Toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
Use the straight / slight right lanes.
7
Keep slight right at fork
0.4 mi
·
43 sec
Toward I 55 South: Memphis
8
Merge onto I 55
1.5 mi
·
1 min
·
Rosa Parks Highway
9
Continue on I 55
1.8 mi
·
2 min
·
Officer Thomas G. Smith, Jr. Memorial Highway
10
Continue on I 55
7.7 mi
·
8 min
·
Police Officer Steven Jarvis Memorial Highway
11
Take the exit
0.4 mi
·
49 sec
Exit 185
Toward MO M: Barnhart, Antonia
Use the straight / slight right lanes.
12
Turn left onto MO M
0.7 mi
·
1 min
·
MO M
Use the left lane.
13
Turn right onto US 61; US 67
0.2 mi
·
24 sec
·
US 61; US 67
14
Continue on East Street
0.2 mi
·
36 sec
·
East Street
15
Turn right onto Willing Street
133 ft
·
11 sec
·
Willing Street
16
Turn left onto East Street
314 ft
·
13 sec
·
East Street
17
Arrive at destination
East Street
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 20.3 mi from Florissant, MO · 27m into the drive
Mid-route town
Meal stop
20 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
Fuel and coffee
A short stop after about 40.6 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 20.3 miles from Florissant, MO, which is a good place for a longer meal and fuel stop.
Arriving in Barnhart, MO
Allow a few extra minutes for the final approach into Barnhart, MO if you are unfamiliar with the area.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$6.35 one way
$12.69 round trip
$3.97/gal
25.4 MPG avg
14 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $6.97 | $13.94 |
| premium | $4.89 | $7.81 | $15.63 |
| diesel | $5.61 | $8.96 | $17.93 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 14.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 12.2 | 0 | $4.26 | $1.95 |
| Efficient EV | 10.2 | 0 | $3.55 | $1.62 |
| EV Truck/SUV | 16.2 | 0 | $5.68 | $2.60 |
Gas CO2
14 kg
EV CO2
5 kg (64% 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
Barnhart, MO
Morning in Barnhart on Saturday
Local time
7:27 AM
CDT
Current temp
61°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
22 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
53m 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 Florissant, MO to Barnhart, MO covers 40.6 miles and takes about 53m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Rosemary Straub Davison Highway, Police Officer Steven Jarvis Memorial Highway, Officer Thomas G. Smith, Jr. Memorial Highway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 20.3 miles from Florissant, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $6.35 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.
This is a short but busy drive. With 10 decision points packed into just 40.6 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 53m.
The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 27.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 27.7 miles: Highway fork - watch signs carefully.
On the drive from Florissant, MO to Barnhart, MO, road signs begin pointing toward Memphis along the way.
Yes. Nearby national parks include Gateway Arch National Park.
How this page is built
Compiled by the Trip.ovh 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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