Techniques for Delineating Subsurface Organic Contamination: A Case Study
Selection of techniques to detect and map subsurface organic contamination depends on the type of source, contamination, and hydrogeologic setting. Ideally, an investigator, manager, or...
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...
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 Importance of Large Landsat Data Sets for Isolating Sediment Resuspension Processes
An optical density analysis of Landsat film transparencies would show spatial variations of suspended sediment concentrations. The residual optical density profile inversely shows above...
Hurricane Induced Changes in Apalachicola Bay, Fla.
Immediately prior to a hurricane a detailed study had just been completed that included description and analysis of the bay's bottom sediments and its bathymetry. A similarly...
Pass a Loutre Freshwater Diversions: Marsh Building in the Mississippi River Delta
Concern about the rapid loss of wetlands within the Pass a Loutre Wildlife Management Area located at the mouth of the Mississippi River has resulted in implementation of the Pass a Loutre...
Nourishment of San Luis Beach, Galveston Island, TX
It has been proposed that one way of stopping shoreline retreat and protecting the foot of the Galveston Seawall is to nourish the complete length of the beach in front of the Seawall....
Quantification of Net Shore-Drift Rates in Puget Sound and the Strait of Juan de Fuca
The objective in this study was to determine the annual rate of net shore-drift at selected sites within Puget Sound and the Strait of Juan de Fuca. These sites were selected based on...
Inlet Dredging Production as a Function of Sea State
This paper attempts to explain some of the inaccuracies and discrepancies in present methods of measuring dredging volumes and looks at a comparison of measured dredge volumes to natural...
Predictions of Shoaling Rates for a New Harbor in Puget Sound, Washington
Physical and numerical modeling methods were used to predict shoaling rates in the proposed Naval Station Puget Sound, Washington. A simple analytical model (SILTHAR), based on the premise...
Application of a Management Strategy for Dredging and Disposal of Contaminated Sediments to Proposed U.S. Navy Homeport Project at East Waterway, Everett Harbor, Washington
The U. S. Navy proposed to homeport a Carrier Battle Group, and requested technical assistance from the Seattle District, U. S. Army Corps of Engineers, to evaluate dredging and disposal...
Cause and Elimination of the Deflation Zones Along the Atlantic City (New Jersey) Shoreline
After recent construction of several large hotels and apartment buildings directly fronting the Atlantic City boardwalk, large blowouts were observed to occur during the winter season...
Numerical Solutions for Problems Related to Nearshore Morphology?!
In the development of numerical models of nearshore morphology various steps can be envisaged: 1. initial models: the initial bottom topography remains unchanged; spatial variations in...
Concrete Armor Mats: Large-Scale Wave Tank Tests Wave Stability Tests
Concrete mats provide an alternative to the more conventional shoreline stabilization techniques. Material requirements are low, placement techniques are straightforward and they tend...
Wetland Enhancement Near Columbia River Mile 68
The May 18, 1980 and subsequent eruptions of the Mt. St. Helen's volcano, and consequential ashy river sedimentation have caused major changes to a wetland adjacent to Carrolls...
Identifying DepositionalAreas in Puget Sound
Depositional areas where fine sediments accumulate have been located through low-cost sediment studies instead of more costly current meter and settling trap measurements. Over 200 samples...
Natural Stabilization of an Eroded Permafrost Site
The paper referred to in this abstract discusses the erosional processes during and after the initial failure, proposed solutions to repair and stabilize the site, and details of the performance...
A Small Community's Response to Catastrophic Coastal Bluff Erosion
This paper describes the actions taken by a small unincorporated coastal community in Northern California during a series of catastrophic bluff erosional events, which occurred between...
REMOTS?: Reconnaissance of Benthic Environments
REMOTS(REGISTERED TRADEMARK) technology, a combination of sediment-profile photography and computer image analysis, was developed to address shortcomings in traditional benthic sampling...
Molluscan Communities of Laguna Madre, Texas: Man's Impact
The purpose of this study is to test the hypothesis that due to human intervention the two parts of the Laguna Madre now differ in molluscan species composition and the most heavily-impacted...
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