If you are planning a trip from Morgan City to Marrero, you can expect a manageable 77.5-mile drive that typically takes about 1 hour and 23 minutes. This route is perfectly suited for a single-day excursion, as it does not require an overnight stay to complete comfortably. You will navigate through Southeast Louisiana using a combination of US 90, the Westbank Expressway, and LA 45. With a estimated fuel cost of just $11, this is a budget-friendly way to travel between these two points. Because the entire journey remains within the same region, you will experience a consistent local atmosphere throughout your time on the road.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
38.7 miles from Morgan City, LA
A natural place for your longest stop of the day
, about 48m into the drive
.
Main Roads
Road
Distance
Duration
US 90
71 mi
1h 27m
Westbank Expressway
5 mi
7m
Brashear Avenue
0.5 mi
<1m
Barataria Boulevard
0.4 mi
<1m
LA 70
<0.1 mi
<1m
Longest stretch:
US 90
— 71 mi, about 1h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between Morgan City, LA and Marrero, LA.
1
Start on LA 182
0.5 mi·52 sec·Brashear Avenue
2
Turn left onto LA 70
269 ft·4 sec·LA 70
3
Take the ramp
0.3 mi·35 sec
4
Merge onto US 90
71 mi·1 hr 27 min·US 90
Use the straight / slight right lanes.
5
Take the exit onto US 90 BUS
4.0 mi·5 min·Westbank Expressway
Toward US 90 Business
6
Keep slight left at fork onto US 90 BUS
0.9 mi·1 min·Westbank Expressway
Toward US 90 Business East
7
Take the exit
0.3 mi·29 sec
Exit 4BToward LA 45: Barataria BoulevardUse the slight right lane.
8
Turn straight onto Westbank Expressway
0.1 mi·13 sec·Westbank Expressway
9
Turn left onto LA 45
0.4 mi·55 sec·Barataria Boulevard
10
Arrive at destination
LA 18
Trip Plan
Because this is a relatively short trip, you have plenty of flexibility to plan your departure around your personal schedule. You won't need to worry about complex stop-overs or long-haul rest strategies, as the duration is under an hour and a half. Make sure to account for the turn-heavy nature of the route, as it can be more tiring than a straight highway drive despite the shorter distance. Since the fuel cost is a modest $11, fill up your tank before you leave Morgan City to avoid needing to stop unnecessarily along the way. Keeping a steady pace will help you navigate the local roads of LA 45 and the Westbank Expressway with much more ease.
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.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 38.7 miles from Morgan City, LA, or about 48m into the drive.
The longest continuous stretch on this route runs about 71 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 17 miles or 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 38.7 miles or 48m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 21m
Traffic, exits, and arrival timing usually matter more near Marrero, LA than in the middle of the route.
Before You Leave
+
Open the route before leaving Morgan City, LA so your first major turns are already loaded.
Day 1
Settle into the route from Morgan City, LA
This is one driving day of about 77.4 miles and 1h 37m.
Your first comfortable stop window is around 17 miles from Morgan City, LA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 90 for about 71 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 6
5 decision points cluster between mile 0.5 and 76.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
3
0.5 mi into trip|~0m in|LA 70
Turn left onto LA 70
Navigation decision point
5
0.8 mi into trip|~1m in|US 90
Merge onto US 90
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
4
71.8 mi into trip|~1h 28m in|US 90 BUS / Westbank Expressway
Take the exit onto US 90 BUS / Westbank Expressway toward US 90 Business
Exit ramp - move to the correct lane early
Toward US 90 Business
5
75.8 mi into trip|~1h 34m in|US 90 BUS / Westbank Expressway
Keep slight left at fork onto US 90 BUS / Westbank Expressway toward US 90 Business East
Highway fork - watch signs carefully
Toward US 90 Business East
7
76.7 mi into trip|~1h 35m in
Take the exit toward LA 45: Barataria Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 4B
Toward LA 45: Barataria Boulevard
Fuel & Cost
Regular Gas
$11.69 one way
$23.38 round trip
$3.84/gal25.4 MPG avg27 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.21
$12.83
$25.66
premium
$4.56
$13.89
$27.78
diesel
$5.61
$17.09
$34.18
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$12
Meals
$25–$50
Total
$37–$62
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 27.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
23.2
0
$8.13
$3.72
Efficient EV
19.4
0
$6.77
$3.10
EV Truck/SUV
31
0
$10.84
$4.95
Gas CO2
27 kg
EV CO2
9 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 Apr 20, 2026
Origin
Morgan City, LA
Late night
in Morgan City on Tuesday
Local time
5:37 AM
CDT
Current temp
69°F
Unavailable
Live forecast
Destination
Marrero, LA
Late night
in Marrero on Tuesday
Local time
5:37 AM
CDT
Current temp
84°F
Unavailable
Live forecast
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
15 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
1h 37m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
New Orleans Jazz National Historical Park
National Historical Park
Discover the roots of jazz at the New Orleans Jazz National Historical Park. Located in the heart of the French Quarter, our park offers live performances, exhibits, and programs that celebrate the le...
5 mi from route
~12 min detour
Free
near mile 77.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a turn-heavy local drive that demands your full attention rather than a monotonous interstate cruise. Since the highway share is 0%, you won't be spending your time on high-speed limited-access roads, which makes for a more engaged experience behind the wheel. There is no single long-distance stretch on US 90, meaning the road profile is defined by constant transitions between local thoroughfares. You should be prepared for frequent adjustments as you navigate the turns that characterize this 77.5-mile path. It is a practical, direct route that requires you to stay alert through the various segments of the journey.
98% highway — fuel and pacing are the main things to plan.
10 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 71 mi on US 90.
How Hard Is This Drive?
2/10
This is a straightforward highway drive that stays mostly on US 90 and Westbank Expressway. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 0.5 miles in near LA 70.
Driving Effort2/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Morgan City, LA to Marrero, LA is easy. At 1h 37m with 98% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 0.5 miles (LA 70): Navigation decision point; at 0.8 miles (US 90): Merge point - match speed before joining. Lane positioning matters here; at 71.8 miles (US 90 BUS / Westbank Expressway): Exit ramp - move to the correct lane early.
Morgan City is a town of 11,000 people (2019) in Coastal Acadiana that revolves around shrimp and petroleum, so much so that it's major annual event is the Louisiana Shrimp & Petroleum Festival.
The longest stretch is about 71 miles on US 90. The full list of main roads is in the Roads section above.
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 (LA 70): Navigation decision point; at 0.8 miles (US 90): Merge point - match speed before joining. Lane positioning matters here; at 71.8 miles (US 90 BUS / Westbank Expressway): Exit ramp - move to the correct lane early.
Yes — New Orleans Jazz National Historical 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 Marrero, LA before heading back.
