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“Bite-Size Bits of Local, National, and Global History”
Butte La Rose in Saint Martin Parish, Louisiana — The American South (West South Central)
 

Atchafalaya River

Butte La Rose Boat Landing

 

—Atchafalaya Water Heritage Trail —

 
Atchafalaya River Marker image. Click for full size.
February 16, 2018
1. Atchafalaya River Marker
Inscription.
The Atchafalaya River is North America’s fifth-largest river according to discharge and, together with the Mississippi, accounts for about 90 percent of the freshwater discharge into the Gulf of Mexico.

The Atchafalaya River is North America’s fifth-largest river according to discharge. It releases an average of about 230,000 cubic feet of water every second. This river is also the major distributary of the Mississippi, carrying about a third of the combined flow of the Red and Mississippi rivers at Old River. Together, the Atchafalaya and Mississippi rivers account for about 90 percent of the freshwater discharge into the Gulf of Mexico.

The Mississippi has changed course several times since the last ice age. This natural adjustment typically takes about 100 years to complete and happens when one of the river’s distributaries becomes hydraulically more efficient by offering a shorter, steeper route to the Gulf. Because the Atchafalaya River is currently the quickest route to the Gulf, the Mississippi has been trying to switch to this channel since the late 1800s. At first the Atchafalaya captured only a small, sporadic flow of water that occasionally reversed directions. But through a combination of natural and man-made events, the flow capture increased until it reached about 30 percent by 1960. In 1963, the Old

Atchafalaya River Marker image. Click for full size.
February 16, 2018
2. Atchafalaya River Marker
River Control Structure near Simmesport was built to prevent even more water from leaving the Mississippi channel to follow the Atchafalaya. If not for human engineering and river control, today visitors would likely see the Mississippi from these banks instead of the Atchafalaya.

Due to its proximity on the Atchafalaya, this area has historically been an important site for transportation and commerce. In the spring of 1863, an important Civil War battle took place at the former site of Fort Burton, located directly across from the boat landing on the river’s eastern shore. In Butte La Rose’s early days as a settlement, residents traveled by skiffs and boats to nearby towns, and a boat bus brought students to and from school. Today, the town is the only Atchafalaya Basin community still located within the Basin levees. Access to this isolated area is now facilitated by the Butte La Rose Interstate 10 exit and local roads, but residents remain closely tied to the Atchafalaya River and the swamps through which it flows. And even though the town is positioned on a high bank along the river, it is not immune from flooding during high water events. The Atchafalaya’s flood stage above Butte La Rose is 20 feet, compared to 47 feet upriver in Simmesport. The river stage at Butte La Rose has become an indicator of the current water level in the floodway, although increased sedimentation

Atchafalaya River Marker image. Click for full size.
February 16, 2018
3. Atchafalaya River Marker
in the old Atchafalaya River segment no longer accurately represents stages in the isolated swamps to the south.

Visit Atchafalaya.org for more information about this site.

This site’s geology/geomorphology: Holocene crevasse splay deposits of the Atchafalaya River.
 
Erected by State of Louisiana and National Park Service.
 
Marker series. This marker is included in the Atchafalaya Water Heritage Trail marker series.
 
Location. 30° 16.803′ N, 91° 41.156′ W. Marker is in Butte La Rose, Louisiana, in Saint Martin Parish. Marker is on Herman Dupis Road near Atchafalaya River Parkway (State Highway 3177), on the right. Touch for map. At the boat launch terminus of Herman Dupis Road. Marker is at or near this postal address: 1715 Herman Dupuis Road, Breaux Bridge LA 70517, United States of America.
 
Other nearby markers. At least 8 other markers are within 13 miles of this marker, measured as the crow flies. Louisiana Airborne Memorial Bridge (approx. 4.8 miles away); a different marker also named Atchafalaya River (approx. 4.8 miles away); Atchafalaya Floodway (approx. 6½ miles away); a different marker also named Atchafalaya Floodway (approx. 8.9 miles away); Louis Hebert

Atchafalaya River image. Click for full size.
February 16, 2018
4. Atchafalaya River
(approx. 11 miles away); Oak and Pine Alley (approx. 12.1 miles away); Bayou Teche (approx. 12.6 miles away); Stephanie-Martin Duralde House (approx. 12.6 miles away).
 
Categories. EnvironmentWaterways & Vessels
 
 
Credits. This page was last revised on February 19, 2018. This page originally submitted on February 19, 2018, by Cajun Scrambler of Assumption, Louisiana. This page has been viewed 71 times since then. Photos:   1, 2, 3, 4. submitted on February 19, 2018.
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