This 34.2-mile drive from Grosse Tete to Blythwood, Louisiana, is a short, straightforward trip that can easily be completed in about 48 minutes. With 86% of the journey on highways, it's a route that prioritizes efficient travel. The estimated fuel cost is a modest $5, making it an economical option. This drive is perfectly suited as a day trip, requiring no overnight stays. You'll primarily navigate I-10 and Highway 1 South, offering a consistent highway-focused experience. The Southeast region of Louisiana provides the backdrop for this brief, practical excursion.
Main Roads
Road
Distance
Duration
I 10
13.2 mi
14m
Highway 1 South
10.4 mi
15m
Highway 1
5.6 mi
6m
Augusta Road
1.5 mi
5m
Eden Street
1.1 mi
2m
Cedar Street
0.5 mi
<1m
Willow Street
<0.1 mi
<1m
Longest stretch:
I 10
— 13.2 mi, about 14m
Turn-by-Turn Driving Directions
Step-by-step road directions between Grosse Tete, LA and Blythwood, LA.
1
Start on LA 77
112 ft·4 sec·Willow Street
2
Turn right onto LA 77
0.5 mi·58 sec·Cedar Street
3
Turn right
0.4 mi·46 sec
4
Merge onto I 10
13 mi·14 min·I 10
Use the straight / slight right lanes.
5
Take the exit
0.2 mi·23 sec
Exit 153Toward LA 1: Port Allen, PlaquemineUse the straight / slight right lanes.
6
Keep slight right at fork
0.1 mi·17 sec
Toward LA 1 South: Plaquemine
7
Keep slight left at fork
1.1 mi·1 min
Toward LA 1 South: Plaquemine
8
Continue on LA 1
10 mi·15 min·Highway 1 South
9
Turn slight right onto LA 1
1.1 mi·2 min·Eden Street
10
Continue on LA 1
5.6 mi·6 min·Highway 1
11
Turn right onto Augusta Road
1.5 mi·5 min·Augusta Road
12
Arrive at destination
Augusta Road
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
The midpoint is around 17.1 miles from Grosse Tete, LA, 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 7
5 decision points cluster between mile 0.5 and 14.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.5 mi into trip|~1m in
Turn right
Navigation decision point
5
0.9 mi into trip|~1m in|I 10
Merge onto I 10
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
14.1 mi into trip|~16m in
Take the exit toward LA 1: Port Allen, Plaquemine
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 153
Toward LA 1: Port Allen, Plaquemine
6
14.4 mi into trip|~16m in
Keep slight right at fork toward LA 1 South: Plaquemine
Highway fork - watch signs carefully
Toward LA 1 South: Plaquemine
5
14.5 mi into trip|~16m in
Keep slight left at fork toward LA 1 South: Plaquemine
Highway fork - watch signs carefully
Toward LA 1 South: Plaquemine
Fuel & Cost
Regular Gas
$5.26 one way
$10.51 round trip
$3.90/gal25.4 MPG avg12 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.32
$5.81
$11.63
premium
$4.65
$6.26
$12.51
diesel
$5.35
$7.20
$14.41
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$5
Estimated CO2 emission: 12 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $4 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
10.3
0
$3.59
$1.64
Efficient EV
8.6
0
$2.99
$1.37
EV Truck/SUV
13.7
0
$4.79
$2.19
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 May 29, 2026
Origin
Grosse Tete, LA
Evening
in Grosse Tete on Wednesday
Local time
7:04 PM
CDT
Current temp
86°F
Mostly Sunny then Chance Showers And Thunderstorms
SW 0 to 5 mph28% chanceLive forecast
Flood Warning
Flood Warning issued May 29 at 9:01AM CDT until June 3 at 1:00PM CDT by NWS New Orleans LA
Flood Warning
Flood Warning issued May 27 at 11:56PM CDT until May 31 at 7:00PM CDT by NWS Lake Charles LA
Destination
Blythwood, LA
Evening
in Blythwood on Wednesday
Local time
7:04 PM
CDT
Current temp
86°F
Mostly Sunny then Chance Showers And Thunderstorms
W 0 to 5 mph25% chanceLive forecast
Flood Warning
Flood Warning issued May 29 at 9:01AM CDT until June 3 at 1:00PM CDT by NWS New Orleans LA
Flood Warning
Flood Warning issued May 27 at 11:56PM CDT until May 31 at 7:00PM CDT by NWS Lake Charles LA
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
Very similar conditions
Both ends of the route are sitting at about the same temperature right now.
Road read
48m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a highway-focused drive for the majority of this 34.2-mile trip. With 86% of the route on highways, you'll spend most of your time on I-10 and Highway 1. The longest uninterrupted stretch you'll encounter is 13.2 miles on I-10, allowing for a good period of steady travel. This profile suggests a predominantly fast-paced journey, with minimal deviations onto slower, local roads. The character of the drive remains consistent, emphasizing forward momentum and direct travel between your starting point in Grosse Tete and your destination in Blythwood.
86% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 13.2 mi on I 10.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 10 and Highway 1 South. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.5 miles in.
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 34.2 miles you will encounter 7 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: at 0.5 miles: Navigation decision point; at 0.9 miles (I 10): Merge point - match speed before joining. Lane positioning matters here; at 14.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
28 ft13 ft
Total Climb
27 ft
Total Descent
28 ft
Highest Point
28 ft
~14.6 mi in
Elevation Range
15 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 Grosse Tete, LA to Blythwood, LA, road signs begin pointing toward Plaquemine along the way.
Plaquemine
14.1 mi in|~16m
Detours Along the Way
Tagged by where each one fits in your drive — first break, midpoint, final stretch.
Doable as a same-day drive at 48m. Total distance: 34.2 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 (86%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 13.2 miles on I 10. The full list of main roads is in the Roads section above.
Yes — we found about 3 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.
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 0.5 miles: Navigation decision point; at 0.9 miles (I 10): Merge point - match speed before joining. Lane positioning matters here; at 14.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes. A round trip is manageable in a single day if you plan a break at Blythwood, LA before heading back.
