Recurrent shoaling and channel dredging, Middle and Upper Mississippi River, USA

Pinter, Nicholas; Miller, Kenneth M.; Wlosinski, Joseph H.; Ploeg, R. R. van der

doi:10.1016/j.jhydrol.2003.12.021

Cited by 26 publications

(30 citation statements)

References 28 publications

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“…A. MOODY by Kesel et al (1992), Winkley (1994), Mossa (1996), Kesel (2003), Pinter et al (2004), Harmar (2004), Harmar et al (2005), Schumm (2005, p. 82), Hudson et al (2008) and Jemberie et al (2008). Kesel et al (1992, p. 712) present a useful graph showing that the activities most likely to have induced changes in sediment discharge during the post-1950 years represented by the Tarbert Landing record are, in addition to the closure of the dams on Missouri River, meander cutoffs and the construction of river-training structures on the Missouri and Lower Mississippi rivers (Figure 8).…”

Section: Effects Of Other Causesmentioning

confidence: 99%

Causes for the decline of suspended‐sediment discharge in the Mississippi River system, 1940–2007

Meade

Moody

2009

Hydrological Processes

394

251

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Abstract:Before 1900, the Missouri-Mississippi River system transported an estimated 400 million metric tons per year of sediment from the interior of the United States to coastal Louisiana. During the last two decades (1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006), this transport has averaged 145 million metric tons per year. The cause for this substantial decrease in sediment has been attributed to the trapping characteristics of dams constructed on the muddy part of the Missouri River during the 1950s. However, reexamination of more than 60 years of water-and sediment-discharge data indicates that the dams alone are not the sole cause. These dams trap about 100-150 million metric tons per year, which represent about half the decrease in sediment discharge near the mouth of the Mississippi. Changes in relations between water discharge and suspended-sediment concentration suggest that the Missouri-Mississippi has been transformed from a transport-limited to a supply-limited system. Thus, other engineering activities such as meander cutoffs, river-training structures, and bank revetments as well as soil erosion controls have trapped sediment, eliminated sediment sources, or protected sediment that was once available for transport episodically throughout the year. Removing major engineering structures such as dams probably would not restore sediment discharges to pre-1900 state, mainly because of the numerous smaller engineering structures and other soil-retention works throughout the Missouri-Mississippi system. Published in

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Section: Effects Of Other Causesmentioning

confidence: 99%

Causes for the decline of suspended‐sediment discharge in the Mississippi River system, 1940–2007

Meade

Moody

2009

Hydrological Processes

394

251

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“…There are also documented cases of local coarsening and/or aggradation where tributaries enter sand-bed rivers. Pinter et al (2004) investigated locations along the upper and middle Mississippi that require frequent dredging and identified unregulated tributaries as one of the main causes, and Harmar and Clifford (2006) note that further down the Mississippi the Arkansas River supplies enough gravel to increase the thalweg D 50 of the main river from 0.5 mm to over 2 mm for a short distance and cause local steepening. Gravel-bed rivers in wide valleys where tributaries deposit any coarse load before reaching the main channel may still show segmentation as a result of non-point 'supply zones' of coarse sediment such as moraines (Davey and Lapointe, 2007).…”

Section: Sedimentary Linksmentioning

confidence: 99%

Effects of Tributaries on Main‐Channel Geomorphology

Ferguson

Hoey

2008

River Confluences, Tributaries and the Fluvial Network

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“…The same results were also observed by (MELVILLE; COLEMAN, 2000 apud PINHEIRO, 2010). Pinter et al (2004) observed bigger depositions in the half upstream the meander bends, which became a region of frequent deposition with an elevated sediment volume and great need of recurrent dredgings.…”

Section: Melo and Azevedomentioning

confidence: 91%

“…Some deposition trends/aggradation downstream of the confluence region with tax (PINTER et al, 2004) coming from the Apipucos weir, upstream of the winding stretches, in the places of flooding of the transversal section, and upstream of the bifurcation (PINTER et al, 2004) located in kilometer nine.…”

Section: Analysis Of the Longitudinal And Transverse Profilementioning

confidence: 99%

“…Positively, an improvement in the navigation conditions and a reduction in the risk of floodings were observed. Pinter et al (2004) identified in a section of 498 kilometers of the medium and high Mississippi river space and temporal patterns, with recurrent sediment depositions and high numbers of maintenance dredgings, through historical records of the dredgings achieved, and classified the depositions for the following situations: (1) Waterfalls and bifurcations of the canal; (2) Tax oeste, uma com 350 metros e outra com 1000 metros, onde se verificou que na área 1 a erosão/remoção de sedimentos superou a sedimentação/agradação, indicando a ocorrência de dragagens no intervalo entre os dois levantamentos associado aos processos naturais. Na área de estudo 2 o processo de sedimentação/agradação superou o de remoção/erosão, com um volume equivalente a uma camada de 1 cm de espessura.…”

Section: Introductionunclassified

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Dynamics of sedimentary Capibaribe River bed after deepening dredging

Melo

Azevedo

2016

RBRH

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The growth of urban centers in the country are increasingly dependent on the adoption of new mobility options, and before this need was developed and initiated a project to build a river corridor passenger in a part of the Capibaribe River in the city of Recife-PE. For the implementation of a navigation channel deepening are needed dredging to define a geometry of the bed of the river compatible with the needs of ships that will traverse the channel. The monitoring of dredging is done with the constant bathymetric surveys where the information volumes of dredged sediments are removed, aiming to also check the temporal behavior of deposition and erosion processes. In this context, the work aimed to evaluate the geometry of the Capibaribe river bed after the deepening dredging, using data from bathymetric surveys at different times for making longitudinal and transverse profiles, and create digital models of depth to extract information about the deposition/aggradation or erosion/removing sediments and their respective volumes. Early Profile Capibaribe river showed mild slope and heterogeneity in the bottom of the form, especially after kilometer five, with trends of deposition/aggradation downstream of the confluence region with tax arising from the weir Apipucos and upstream of the winding sections in local enlargement of the cross section, and the amount of the fork located at kilometer nine. The scenarios after the dredging to deepen indicate places with predominance of erosion and other sedimentation processes. They compared the longitudinal and transverse profiles of two areas located in western shipping channel, one with 350 meters and over 1000 meters, where it was found that the area 1 to erosion/sediment removal exceeded sedimentation/aggradation, indicating the occurrence of dredging the interval between the two surveys linked to the natural processes. In the study area 2 the sedimentation/aggradation exceeded the removal/erosion, with a volume equivalent to 1 cm thickness. The aggradation occur homogeneously in the navigation channel, while erosion was located on the banks, more intensely on the right bank of the river.

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Recurrent shoaling and channel dredging, Middle and Upper Mississippi River, USA

Cited by 26 publications

References 28 publications

Causes for the decline of suspended‐sediment discharge in the Mississippi River system, 1940–2007

Causes for the decline of suspended‐sediment discharge in the Mississippi River system, 1940–2007

Effects of Tributaries on Main‐Channel Geomorphology

Dynamics of sedimentary Capibaribe River bed after deepening dredging

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