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Title: Hardscrabble Bend, Mississippi River revetted bank failure : soils investigation
Authors: United States. Mississippi River Commission
U.S. Army Engineer Waterways Experiment Station
Keywords: Potamology
Mississippi River
River banks
Revetment failure
Bank erosion
Flow failure
Soil liquefaction
Soil mechanics
Soft soils
Hardscrabble Bend
Publisher: U.S. Army Engineer Waterways Experiment Station.
Engineer Research and Development Center (U.S.)
Series/Report no.: Potamology investigations report ; no. 8-1.
Description: Potamology Report
Introduction: The purpose of this report is to present the results, to date, of a soils investigation made in connection with a bank failure on the right bank of the Mississippi River at Hardscrabble Bend revetment (mile 393.7 AHP) which occurred on 2 June 1948. This report is one of a series describing the results of various phases of the potamology investigations being conducted by the Waterways Experiment Station and the Mississippi River Commission. The Hardscrabble Bend failure was visually similar to bank failures in other areas along the Mississippi River which are thought to have been caused by the liquefaction of deposits of loose sand (see Potamology Investigations Report 5-2, "Field Investigation of Reid Bedford Bend Revetment, Mississippi River, Soils Investigation," dated June 1948). Therefore, the primary purpose of the investigation was to determine if the deposits of sand in the area were in a loose state. The secondary purpose of the investigation was to determine the piezometric pressures in the sand and the effect of the pressures on the stability of the bank. The investigation was intended to furnish information on the following features: A.) The general nature of the soils existing adjacent to the failure area, as determined from boring logs. B.) The dynamic penetration resistance of the deep sands as determined by a penetration test. C.) The relative densities of the sands in the overburden, as determined from samples obtained with a hand-operated density sampler. D.) The variation of piezometric pressures in the deep sands with changing river elevations. E.) Any additional factors which contributed to or were pertinent to tho failure.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Potamology Investigations Report

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