13 Jul 2022

Baseline Data for a Cedar Tree Revetment Monitoring Site near Wichita, Kansas

Purpose: This US Army Corps of Engineers (USACE) National Regional Sediment Management technical note (RSM-TN) documents baseline data collected at a cedar tree revetment installation on a small creek near Wichita, KS. These data can be used in subsequent years to add to the understanding of the longevity, effectiveness, and failure modes of cedar tree revetments as bank stabilization.

9 Sep 2021

Mat Sinking Unit Supply Study: Mississippi River Revetment

Abstract: The Mississippi Valley Division (MVD) has maintained the Mississippi River banks for over 80 years. The Mat Sinking Unit (MSU), built in 1946, was considered state-of-the-art at the time. This system is still in operation today and has placed over 1,000 miles of Articulated Concrete Mats along the Mississippi River from Head of Passes, LA, to Cairo, IL. A new MSU has been designed and is expected to be fully mission capable and operational by the 2023 season, which is expected to increase the productivity from 2,000 squares/day up to 8,000 squares/day with double shifts and optimal conditions. This MSU supply study identifies and optimizes the supply chain logistics for increased production rates from the mat fields to the MSU. The production rates investigated for this effort are 2,000 squares/day, 4,000 squares/day, and 6,000 squares/day. RiskyProject® software, which utilizes a Monte Carlo method to determine a range of durations, manpower, and supplies based on logical sequencing is used for this study. The study identifies several potential supply and demand issues with the increased daily production rates. Distance to casting fields, number of barges, and square availability are the major issues to supply increased placement rates identified by this study.