May 21, 2018 · For more than 150 years, scientists have known that levees increase flood risk on the Mississippi River. That hasn't stopped local officials from building up levees in response to more severe...

ABSTRACT: During the spring and summer of 2008, record rainfall in the Midwest United States led to severe flooding as water overtopped the levees bordering the Mississippi River and its tributaries. The erosion associated with the overtopping resulted in …

Feb 2, 2003 · This paper presents the levee overtopping case histories of the Winfield-Pin Oak site which was overtopped and severe erosion led to failure, and the Brevator site which was also overtopped but did not fail.

Heavy spring rains caused the Mississippi River to overflow, breaching levees and flooding enormous swathes of the Lower Mississippi Valley. The flooding began in February and only began to recede on May 20.

Oct 27, 2010 · Logistic regression analysis assessed site characteristics at levee-failure locations identified in a database of historical levee failures along 685 km of the Middle and Lower Mississippi River (MMR and LMR). Levee site parameters were evaluated using geologic maps, soil survey maps, digital elevation models (DEMs), historic river maps ...

Mississippi River with the floodway in use. • With more than 100 miles of river to simulate, Vogel built an 80-foot-long outdoor concrete model of the river channel, the overbank between levees, backwater areas, and the floodway. • Vog took special care to correctly place drainage ditches, levee borrow pits, and

Jan 1, 2009 · The 95% model for the Lower Mississippi River (LMR) identified location of failure on a meander bend, land-cover type, constriction-over-time factor, and sinuosity of the channel as significant. This model had an R2 value of 0.326, p-value of 0.003, and a …

Aug 31, 2011 · This paper presents the levee overtopping case histories of the Winfield-Pin Oak site which was overtopped and severe erosion led to failure, and the Brevator site which was also overtopped but did not fail.

1 day ago · The system includes a network of levees, floodwalls, gates and pump stations costing about $1 billion. ... The Mississippi River functions as a water superhighway, transporting about $500 million ...

Nov 21, 2019 · Three levees protecting more than 20,000 Iowans and $2.9 billion in property along the Mississippi River are at risk of failure if not repaired or reinforced quickly, according to a report...