Engineering considerations for large dam removals

2013 ◽  
Author(s):  
Thomas E. Hepler
Keyword(s):  
Dam Removals ◽  
Large Dam

Predicting the ecological impacts of large-dam removals on a river network based on habitat-network structure and flow regimes

2018 ◽  
Vol 32 (6) ◽  
pp. 1403-1413 ◽  
Author(s):  
Nobuo Ishiyama ◽  
Masahiro Ryo ◽  
Taiga Kataoka ◽  
Shigeya Nagayama ◽  
Masanao Sueyoshi ◽  
...  
Keyword(s):  
Network Structure ◽  
Flow Regimes ◽  
River Network ◽  
Ecological Impacts ◽  
Habitat Network ◽  
Dam Removals ◽  
Large Dam

HYDRODYNAMIC STRUCTURE IN A LARGE DAM RESERVOIR DURING EARLY AUTUMN

2018 ◽  
Vol 74 (5) ◽  
pp. I_481-I_486
Author(s):  
Makoto UMEDA ◽  
Yuta NAITO ◽  
Bunyu KOBORI ◽  
Tetsuya SHINTANI ◽  
Kazushi OMOE ◽  
...  
Keyword(s):  
Dam Reservoir ◽  
Early Autumn ◽  
Hydrodynamic Structure ◽  
Large Dam

scholarly journals Watershed Suspended Sediment Supply and Potential Impacts of Dam Removals for an Estuary

2021 ◽  
Author(s):  
David K. Ralston ◽  
Brian Yellen ◽  
Jonathan D. Woodruff
Keyword(s):  
Suspended Sediment ◽  
River Estuary ◽  
Dam Removal ◽  
Hudson River ◽  
Sediment Traps ◽  
Sediment Supply ◽  
Watershed Area ◽  
Natural Lakes ◽  
Sediment Deposits ◽  
Dam Removals

AbstractObservations and modeling are used to assess potential impacts of sediment releases due to dam removals on the Hudson River estuary. Watershed sediment loads are calculated based on sediment-discharge rating curves for gauges covering 80% of the watershed area. The annual average sediment load to the estuary is 1.2 Mt, of which about 0.6 Mt comes from side tributaries. Sediment yield varies inversely with watershed area, with regional trends that are consistent with substrate erodibility. Geophysical and sedimentological surveys in seven subwatersheds of the Lower Hudson were conducted to estimate the mass and composition of sediment trapped behind dams. Impoundments were classified as (1) active sediment traps, (2) run-of-river sites not actively trapping sediment, and (3) dammed natural lakes and spring-fed ponds. Based on this categorization and impoundment attributes from a dam inventory database, the total mass of impounded sediment in the Lower Hudson watershed is estimated as 4.9 ± 1.9 Mt. This represents about 4 years of annual watershed supply, which is small compared with some individual dam removals and is not practically available given current dam removal rates. More than half of dams impound drainage areas less than 1 km2, and play little role in downstream sediment supply. In modeling of a simulated dam removal, suspended sediment in the estuary increases modestly near the source during discharge events, but otherwise effects on suspended sediment are minimal. Fine-grained sediment deposits broadly along the estuary and coarser sediment deposits near the source, with transport distance inversely related to settling velocity.

Evidence for changes in the dynamics of Earth crust tilts caused by the large dam construction and reservoir filling at the Enguri dam international test area (Georgia)

2011 ◽  
Vol 66 (4) ◽  
pp. 523-529 ◽  
Author(s):  
Teimuraz Matcharashvili ◽  
Tamaz Chelidze ◽  
Vakhtang Abashidze ◽  
Natalia Zhukova ◽  
Ekaterine Mepharidze ◽  
...  
Keyword(s):  
Test Area ◽  
Dam Construction ◽  
Reservoir Filling ◽  
Large Dam

scholarly journals Impact of climate change on the persistent turbidity issue of a large dam reservoir in the temperate monsoon region

2018 ◽  
Vol 151 (3-4) ◽  
pp. 365-378 ◽  
Author(s):  
Hyungseok Park ◽  
Sewoong Chung ◽  
Eunju Cho ◽  
Kyoungjae Lim
Keyword(s):  
Climate Change ◽  
Monsoon Region ◽  
Dam Reservoir ◽  
Impact Of Climate Change ◽  
Large Dam

Socioeconomic and Institutional Dimensions of Dam Removals: The Wisconsin Experience

1998 ◽  
Vol 22 (3) ◽  
pp. 359-370 ◽  
Author(s):  
Stephen M. Born ◽  
Kenneth D. Genskow ◽  
Timothy L. Filbert ◽  
Nuria Hernandez-Mora ◽  
Matthew L. Keefer ◽  
...  
Keyword(s):  
Dam Removals

scholarly journals Dam Removal Information Portal (DRIP)—A map-based resource linking scientific studies and associated geospatial information about dam removals

2016 ◽  
Author(s):  
Jeffrey J. Duda ◽  
Daniel J. Wieferich ◽  
R. Sky Bristol ◽  
J. Ryan Bellmore ◽  
Vivian B. Hutchison ◽  
...  
Keyword(s):  
Dam Removal ◽  
Geospatial Information ◽  
Information Portal ◽  
Dam Removals

Using hydraulic modeling to address social impacts of small dam removals in southern New Jersey

2009 ◽  
Vol 90 ◽  
pp. S270-S278 ◽  
Author(s):  
Joshua R. Wyrick ◽  
Brian A. Rischman ◽  
Christopher A. Burke ◽  
Craig McGee ◽  
Chasity Williams
Keyword(s):  
New Jersey ◽  
Hydraulic Modeling ◽  
Social Impacts ◽  
Dam Removals
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