Accession Number:

AD1036061

Title:

Geologic Controls of Sand Boil Formation at Buck Chute, Mississippi

Descriptive Note:

Technical Report,01 Oct 2016,30 Sep 2017

Corporate Author:

ERDC-GSL vicksburg United States

Personal Author(s):

• Martin,Seth M.
• Dunbar,Joseph B.
• Corcoran,Maureen K.
• Schmitz,Darrel W.

Report Date:

2017-06-30

Pagination or Media Count:

95.0

Abstract:

Sand boil formation due to underseepage is a potential failure mechanism for levees in the Lower Mississippi River Valley. Sand boils were identified in the Buck Chute study area in the 1990s during high-water events and during the 2009 Flood. The site is unique due to the presence of point bar and abandoned channel deposits. To understand the role of these alluvial deposits on sand boil formation at the site, a geologic investigation of the subsurface was conducted. Using shallow geophysics, cone penetrometer tests CPT, borings, and a geographic information system GIS, researchers concluded that the thin blanket associated with point bar deposits, abandoned channel deposits causing a blocked seepage path, and head differential changes caused by the Muddy Bayou Control Structure were the controls of sand boil formation at Buck Chute.

Descriptors:

• Army Corps of Engineers
• Seepage
• Soil surveys
• SAND
• Levees

Subject Categories:

• Hydrology, Limnology and Potamology
• Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE