Caruthersville Floodwall

2023 Caruthersville Floodwall Improvements

The proposed new floodwall will extend 3,050.23 feet from station 0+00 on the west, where it connects to the levee, to station 30+50.23 on the east, where it will re-connect to the levee. The new floodwall alignment will largely conform to the existing one, but the proposed floodwall's footprint exhibits some minor deviations. 

National Register of Historic Places Assessment

The Caruthersville Floodwall is approximately 3,000 feet long and was originally built in 1917. The floodwall was later rebuilt in 1932 with a gravity design by the Memphis District U.S. Corps of Engineers, with sections of the 1932 floodwall incorporating the older 1917 floodwall into its design. 

The floodwall is significant to Caruthersville's commerce, industry, and residences protection from flooding and collectively significant with the Memphis District's 1931 Levee Program under the Mississippi River and Tributaries Project initiated by the Flood Control Act of 1928 in the early twentieth century. However, much of the historic landscape along the floodwall has changed or disappeared. The Frisco Railroad has been razed, and the northern portion of the landside of the floodwall has a greenline/sidewalk where the railroad once was located.

Large sections of the floodwall's riverside and landside are now vacant, and large grassy lots replace what was once a booming railroad and river town. Today, the ca. 1900 Bunge North America, Inc. facility (north end of the floodwall) and 1995 Lady Luck Casino (south end of the floodwall) are the only buildings directly along the floodwall in Caruthersville. 

From 1932 to 1977, the floodwall remained relatively unchanged until a study determined that the wall was unstable. Study findings prompted USACE to build a slurry trench and clay bucket on the riverside of the wall in 1978. The slurry trench was constructed at 260 feet and approximately 15 to 20 feet below the ground. Due to deterioration, extensive renovations occurred in 1984 that involved repairing expansion joints, concrete spalls, and cementation waterproof coating over any exposed surface of the floodwall. 

The 1931 USACE Levee Program resulted in nearly 12,000 miles of levee/floodwall improvements in urban areas along the Lower Mississippi Valley, making the floodwall in Caruthersville a common type of flood control improvement seen in urban areas where additional right of ways were once impossible. 

Additionally, no ancillary structures (i.e., reservoirs, pumping stations, etc.) were noted on the 1932 engineering plans nor visible during the survey for the Caruthersville Floodwall. For this reason, the Caruthersville Floodwall is not considered to have distinct characteristics for its engineering design. The floodwall-levee systems along the Mississippi River are inspected annually. During recent inspections, cracks and shifting were noted in certain locations along the Caruthersville Floodwall, compromising its structural integrity and weakening its effectiveness to protect against flooding. 

Caruthersville Floodwall History

The 1932 Caruthersville Floodwall is approximately 3,000 feet long and located on the eastern edge of downtown Caruthersville. Prior to the Mississippi River Commission's (MRC) involvement in flood control, Caruthersville had private levees but did not have any engineer-designed levee recorded as being built until 1893, when the Memphis District established the Saint Francis Levee District to construct, repair, protect, and maintain levees for Dunklin, New Madrid, and Pemiscot counties.

The 1893 levee stood 7.5 feet high yet failed during the 1897 flood. The levee was rebuilt 19 feet high following the flood to withstand even higher water levels. 

The 1917 floodwall protected commerce and rail lines from constant flooding. A floodwall was chosen instead of a levee, likely due to limited space within the town limits and floodwalls standing narrower than earthen levees. 

The Great Flood of 1927 resulted in the Federal Government passing the Flood Control Act of 1928. This Act paved the way for the Caruthersville Floodwall's design and construction. The Mississippi River and Tributaries Project formed from this Act led to the redistribution of USACE districts in the Lower Mississippi Valley (LMV) and the creation of the Memphis District with Caruthersville, Missouri, in its district.

The development of the concrete floodwalls was part of the Memphis District Levee Program that was initiated in 1931 to implement over 12,000 linear miles of concrete floodwall in Cairo, Helena, Caruthersville, and Birds Point-New Madrid Floodway. 

The 1932 floodwall followed the same footprint as the 1917 version, and in many places, the existing wall was incorporated into the improved 1932 design. At the time of the floodwall's construction, buildings constructed along the floodwall included railroad facilities and depots, livery stables, storage facilities, lumber yards, and other industrial facilities.

Most of the floodgates seen today existed in 1932 for the spur lines and were built to service the shipping of lumber and other industrial goods. The 1932 floodwall was constructed along the St. Louis-San Francisco Railroad.  

From 1932 to 1977, the floodwall remained unchanged until a study determined that the wall was unstable. Study findings prompted USACE to build a slurry trench and clay blanket on the riverside of the wall in 1978. Due to deterioration, extensive renovations occurred in 19984 that involved repairing expansion joints, concrete spalls, and cementation waterproof coating over any exposed surfaces of the floodwall. 

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