If you are looking to travel from Port Allen to Houma, you are in for a 81.8-mile journey through the heart of Southeast Louisiana. Expect to spend about 1 hour and 44 minutes behind the wheel for this trip. Because of the manageable distance, this route is perfectly suited for a single-day excursion, meaning you won't need to worry about booking an overnight stay. With fuel costs estimated at around $11, it remains a budget-friendly way to navigate between these two points. Since both locations are situated within the Southeast region, the trip offers a consistent look at the local landscape. It serves as a straightforward connection for those needing to traverse this part of the state.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
43.1 miles from Port Allen, LA
A natural place for your longest stop of the day
, about 51m into the drive
.
Main Roads
Road
Distance
Duration
Horace Wilkinson Bridge
33.1 mi
37m
Main Street
14.3 mi
22m
LA 20
11.1 mi
15m
Airline Highway
9.1 mi
11m
LA 641
6.8 mi
9m
Louisiana 20
3.1 mi
4m
Saint Patrick Street
2.6 mi
3m
LA 3127
2.3 mi
3m
Longest stretch:
Horace Wilkinson Bridge
— 33.1 mi, about 37m
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Allen, LA and Houma, LA.
1
Start on South Alexander Avenue
304 ft·12 sec·South Alexander Avenue
2
Turn right onto Avenue A
52 ft·2 sec·Avenue A
3
Turn left onto LA 1
0.4 mi·46 sec·Dr Martin Luther King Jr Memorial Highway
4
Continue on LA 1
0.1 mi·14 sec·Highway 1 South
5
Take the exit
0.2 mi·22 sec
Toward I 10 East: Baton Rouge
6
Keep slight right at fork
0.5 mi·1 min
Toward I 10 East: Baton RougeUse the slight right lane.
7
Merge onto I 10
33 mi·37 min·Horace Wilkinson Bridge
Use the straight / slight right lanes.
8
Take the exit
0.4 mi·41 sec
Exit 187Toward US 61 South: GramercyUse the straight / slight right lanes.
9
Merge onto US 61
9.1 mi·11 min·Airline Highway
10
Turn right onto LA 641; LA 3213
6.8 mi·9 min·LA 641; LA 3213
11
Turn right onto LA 3127
2.3 mi·3 min·LA 3127
12
Turn left onto LA 20
2.2 mi·3 min·LA 20
13
Turn straight onto LA 20
9.0 mi·12 min·LA 20
14
Continue on LA 20
3.1 mi·4 min·Louisiana 20
15
Continue on LA 20
0.1 mi·10 sec·North Canal Boulevard
16
Turn right onto Saint Patrick Street
2.6 mi·3 min·Saint Patrick Street
17
Continue on LA 20
397 ft·8 sec·Saint Patrick Bridge
18
Continue on LA 1; LA 20
0.7 mi·1 min·Jackson Street
19
Enter roundabout onto LA 20
139 ft·2 sec·Canal Boulevard
20
Continue on LA 20
0.8 mi·1 min·Canal Boulevard
21
Continue on LA 20
14 mi·22 min·Main Street
Use the straight / left lanes.
22
Turn right onto LA 312
198 ft·10 sec·Lafayette Street
23
Turn left onto School Street
0.3 mi·1 min·School Street
24
Arrive at destination
School Street
Trip Plan
Since this is a relatively short trip, you have plenty of flexibility regarding your departure time. You won't need to stress over complex stop-planning, as the 1 hour and 44-minute duration is easily manageable in one go without scheduled breaks. Be sure to keep an eye on your navigation as you transition between local roads, given the turn-heavy nature of the route. With your fuel budget set at $11, it is wise to fill up before you leave Port Allen to ensure you have enough to reach Houma without interruption. Focus on staying alert for the frequent road changes that define this specific path.
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 43.1 miles from Port Allen, LA, or about 51m into the drive.
The longest continuous stretch on this route runs about 33.1 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 19 miles or 22m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 43.1 miles or 51m 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 34m
Traffic, exits, and arrival timing usually matter more near Houma, LA than in the middle of the route.
Before You Leave
+
Open the route before leaving Port Allen, LA so your first major turns are already loaded.
Day 1
Settle into the route from Port Allen, LA
This is one driving day of about 86.2 miles and 1h 55m.
Your first comfortable stop window is around 19 miles from Port Allen, LA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Horace Wilkinson Bridge for about 33.1 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 13
5 decision points cluster between mile 0.6 and 70.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.6 mi into trip|~1m in
Take the exit toward I 10 East: Baton Rouge
Exit ramp - move to the correct lane early
Toward I 10 East: Baton Rouge
7
0.7 mi into trip|~1m in
Keep slight right at fork toward I 10 East: Baton Rouge
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 10 East: Baton Rouge
5
1.3 mi into trip|~2m in|I 10 / Horace Wilkinson Bridge
Merge onto I 10 / Horace Wilkinson Bridge
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
34.4 mi into trip|~40m in
Take the exit toward US 61 South: Gramercy
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 187
Toward US 61 South: Gramercy
5
70.8 mi into trip|~1h 29m in|LA 20 / Canal Boulevard
Enter roundabout onto LA 20 / Canal Boulevard
Roundabout - know your exit number before entering
Fuel & Cost
Regular Gas
$13.02 one way
$26.04 round trip
$3.84/gal25.4 MPG avg30 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.21
$14.29
$28.58
premium
$4.56
$15.47
$30.94
diesel
$5.61
$19.03
$38.06
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$13
Meals
$25–$50
Total
$38–$63
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 30.2 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $9 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
25.9
0
$9.05
$4.14
Efficient EV
21.6
0
$7.54
$3.45
EV Truck/SUV
34.5
0
$12.07
$5.52
Gas CO2
30 kg
EV CO2
10 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 17, 2026
Origin
Port Allen, LA
Late night
in Port Allen on Sunday
Local time
5:04 AM
CDT
Current temp
83°F
Unavailable
Live forecast
Destination
Houma, LA
Late night
in Houma on Sunday
Local time
5:04 AM
CDT
Current temp
78°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
5 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
1h 55m 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.
More Details
What kind of drive is this?
Prepare for a turn-heavy local drive that keeps you engaged throughout the 81.8-mile stretch. Unlike a monotonous interstate slog, this route relies on Avenue A, the Dr. Martin Luther King Jr. Memorial Highway, and Highway 1 South to get you to your destination. You will find that the highway share for this trip is 0%, as the path is composed entirely of local roads. Because the longest stretch on any single road is 0 miles on Avenue A, you should be ready for frequent transitions between segments. The character of this drive is defined by its winding nature rather than high-speed cruising.
Only 24% highway — the rest is turn-by-turn surface driving.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 33.1 mi on Horace Wilkinson Bridge.
How Hard Is This Drive?
6/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 13 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.6 miles in.
Driving Effort6/10
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 86.2 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: at 0.6 miles: Exit ramp - move to the correct lane early; at 0.7 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 1.3 miles (I 10 / Horace Wilkinson Bridge): Merge point - match speed before joining. Lane positioning matters here.
Port Allen is a town in the River Parishes region of Louisiana that sits directly across the Mississippi River from Baton Rouge and is the seat of West Baton Rouge Parish. It takes on a rather gritty and highly industrial character but has a few attractions.
Houma is a small city (about 33,000 people in 2019, not including suburbs) in south central Louisiana. It is the seat and largest city in Terrebonne Parish, and the center of the Houma-Bayou Cane-Thibodaux Metropolitan Statistical Area. The region in total is home to a little over 200,000.
Bayou Terrebonne runs through the town roughly east to west between Main Street and Park Avenue, with the Intracostal Waterway running north to south.
Doable as a same-day drive at 1h 55m. Total distance: 86.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 55m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile.
Frequently Asked Questions
The longest stretch is about 33.1 miles on Horace Wilkinson Bridge. 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 Houma, LA 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: at 0.6 miles: Exit ramp - move to the correct lane early; at 0.7 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 1.3 miles (I 10 / Horace Wilkinson Bridge): Merge point - match speed before joining. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Houma, LA before heading back.
