The geomorphic legacy of water and erosion control structures in a semiarid rangeland watershed

2017 ◽  
Vol 43 (4) ◽  
pp. 909-918 ◽  
Author(s):  
Mary H. Nichols ◽  
Christopher Magirl ◽  
Nathan F. Sayre ◽  
Jeremy R. Shaw
Keyword(s):  
Erosion Control ◽  
Control Structures ◽  
Rangeland Watershed ◽  
Semiarid Rangeland

scholarly journals Application of erosion-control materials and spontaneous vegetation in the protection of reservoirs in southern and eastern Serbia

2009 ◽  
Vol 61 (3) ◽  
pp. 475-482 ◽  
Author(s):  
Vjaceslava Matic ◽  
Gordana Djukanovic
Keyword(s):  
Construction Materials ◽  
Erosion Control ◽  
Entire Study ◽  
Control Structures ◽  
Erosion Processes ◽  
Field Investigations ◽  
Spontaneous Vegetation ◽  
Accredited Laboratories ◽  
Materials Used ◽  
Stone Concrete

The quality and stability of erosion-control materials in protection of reservoirs in Southern and Eastern Serbia have been examined both in the field and in accredited laboratories in our country. Field investigations have been carried out over a period of 15 years in Eastern Serbia and for up to 30 years in Southern Serbia, and they are still being conducted by monitoring the state and possible damage of consolidation-retention check dams, walls, and other erosion-control structures. The materials used in protection of the Selova and Grliste Reservoirs are typical construction materials, such as resistant natural stone, concrete of the BI group, i.e., MB 20, aggregate, synthetic elements, etc. Long-term monitoring of their state and minor deformations has shown that the materials were well-chosen and stable, and that there has been no significant damage, except for some minor crumbling and smaller cracks due to negligible scouring. This is all the result of prior thorough empirical and laboratory testing of applied materials, which helped to achieve stability and functionality of structures erected to prevent silting-up of the reservoir. Such a state has contributed to stabilization of erosion processes and reduction of sediment quantities, improvement of water quality, and advancement of the autochthonous vegetation (Salix L., Cornus L., Quercus L.). Vegetation has further mitigated erosion, decreased floods, and consolidated the structures, thereby improving the ecological quality of the catchments as well as the entire study area.

Water Quality from Erosion Control Structures in Nebraska

1985 ◽  
Vol 14 (2) ◽  
pp. 186-190 ◽  
Author(s):  
J. S. Schepers ◽  
D. D. Francis ◽  
L. N. Mielke
Keyword(s):  
Water Quality ◽  
Erosion Control ◽  
Control Structures

Analysis of 11 Bioengineered Stream Bank Erosion Control Structures in Alaska

2005 ◽  
Vol 1941 (1) ◽  
pp. 122-128
Author(s):  
Kenneth F. Karle ◽  
William W. Emmett ◽  
Nancy Moore
Keyword(s):  
Good Condition ◽  
Erosion Control ◽  
Bank Erosion ◽  
Shear Stresses ◽  
Design Flood ◽  
Control Structures ◽  
Existing Structures ◽  
Stream Bank ◽  
Field Investigations ◽  
Study Sites

This paper reports the results of a study of the use of bioengineered erosion control structures on Alaskan streams and rivers. Field investigations of hydraulic and vegetation conditions at 11 study sites around the state of Alaska were conducted to determine the performance of these structures. Root wads, live staking, brush layering, and coir logs were the primary bioengineering methods used for erosion control at the study sites. A one-dimensional numerical computer model was applied at each site to estimate the magnitude of average bed and bank shear stresses (tractive force) apparent to the erosion control structures at the 50- and 100-year design flood levels. Discharge records and field flood indicators were checked to correlate structure condition to flow history. Damage at existing structures was attributed to flowing ice, undermining of toe protection, buoyancy effects, and failure of construction fabrics. Root wad structures in good condition were located in areas with high boat wake occurrence but low channel tractive forces. The findings of the study suggest that the types of bioengineered erosion control structures studied have not been proven to offer reliable bank erosion protection during flooding conditions on channels with high tractive forces.

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