Tennessee-Tombigbee Waterway and the Environment
An interdisciplinary studies process was instrumental developing the controversial Tennessee-Tombigbee Waterway in an environmentally responsible manner. The paper describes measures incorporated...

Effectiveness of Spur Dike Notching
The most widely used technique of ameliorating the environmental effects of river-training works has been to construct notches in spur dikes (or to allow notches to remain in damaged dikes)...

Channel Morphology and Habitat
Stream channels provide habitat for aquatic animals, such as fish and aquatic benthic invertebrates. Associated with the channel are near water habitats important to amphibians, reptiles,...

FLDWAV: A Generalized Flood Routing Model
A new unsteady flow simulation model, FLDWAV, has been developed by the National Weather Service for application on either micro-, mini-, or mainframe computers. FLDWAV is based on an...

Predicting Channel Recovery from Sand and Gravel Extraction in the Naugatuck River and Adjacent Floodplain
Gravel extraction at five sites along the Naugatuck River in Connecticut is of sufficient magnitude that channel recovery to pre-mining morphology is expected to require up to several...

Physical River Model Results and Prototype Response
The Hydraulics Laboratory of the US Army Engineer Waterways Experiment Station (WES) has performed physical hydraulic model studies on various rivers for nearly 60 years. These studies...

Morphologic and Hydraulic Adjustments of Red River from Shreveport, LA to Fulton, AK, between 1886 and 1980
Morphometric data (channel width and depth and slope) from 4 hydrographic surveys of Red River (1886, 1938, 1968, 1980) from Shreveport to Fulton and specific-gage analyses for the gages...

Measurement and Analysis of Tracfcfifc-Induced Transient Motion in Navigation Channels
Two-induced physical effects related to navigation changes on the Kanawha River, West Virginia were measured at three environmentally sensitive representative locations. The purpose of...

Unsteady Flow in a Navigation Channel
Based on the de St Venant equations, the Preissmann's implicit finite difference scheme, and the double sweep algorithm, a mathematical model for one-dimensional unsteady...

Discharge Measurement by Thermal Dilution
A flume study was conducted to develop and improve the thermal dilution method of discharge measurement in trapezodial channels. The study was performed in an indoor channel with dischages...

Computer Aided Hydraulic Design of Open Channels
The results of tests by the U.S. Army Corps of Engineers District, Los Angeles (LAD), became a major part of the Corps' EM 1110-2-1601, Hydraulic Design of Flood Control Channels....

Conjunctive Use in the Niles Cone, California
The use of in-stream facilities for artificial recharge in stream channels as practiced in Alameda County, California, is discussed. The facilities are (1) stream channels with no other...

Environmental Impacts of Arctic Marine Transportation: Addressing the Issues through Research and the Provision of Advice
The prospect of numerous transits of the Canadian Northwest Passage and other northern waters by icebreaking tankers raises various environmental issues. This paper reviews the growth...

Environmental Considerations to Channel Dredging
In this paper two principal areas of environmental concern were investigated. The first is the physical impact of dredging and deposition of solid materials causing turbidity on aquatic...

Design Considerations for a Navigational Channel
The hydraulic feasibility of the proposed navigation channel from Shuwaikh to the offshore area in Sulaibikhat Bay was studied. Channel width and alignment were determined considering...

Navigation Problems in Upper Cook Inlet, Alaska
The Alaska District, Corps of Engineers and the Waterways Experiment Station are investigating navigation problems including tidal currents, sedimentation, and regional transportation...

Maintaining the Gateway to the Columbia Basin?A Plan for Improvement
Portland District has begun a Maintenance Improvement Program to recommend procedures to reduce annual operations and maintenance costs while providing safe and efficient ship passage...

The Life Cycle of a CERC: 1963-1983
Anticipating new opportunities in the coastal zone and convinced that basic research would be the means to secure them, in 1963 the United States Army Corps of Engineers created an independent...

The Policy Roots of Louisiana's Land Loss Crisis
Louisiana is currently losing approximately 155 square kilometers of highly productive wetlands to the Gulf of Mexico each year and the rate is accelerating. The physical cause of the...

Response of Maryland Streams to Agricultural Drainage
An agricultural ditching and channelization project has been proposed for the Eastern shore of Maryland. The Upper Chester River Watershed Plan will involve up to 708 kilometers of ditching...

 

 

 

 

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