Granular Flow on a Bumpy Inclined Chute
Theoretical predictions for steady, uniform granular flows of identical, smooth, nearly elastic disks and spheres on bumpy inclined chutes are obtained. Kinetic constitutive theory is...
Continuum Model for Flows in Emergent Marsh Vegetation
Modeling of flows in tidal marshes requires modifications to the classical equations of open channel flow. In this study, the authors formulate an equivalent continuum model for tidal...
Tide- and Wind-Driven Flushing of Boston Harbor, Massachusetts
The flushing of Boston Harbor, a shallow, tidally dominated embayment with little fresh water input, is investigated using a depth-averaged model. The modeled tidal currents exhibit strong...
DYNLET1: Network Model for Tidal Inlet Dynamics
This paper introduces DYNLET1, an efficient, versatile, and accurate one- dimensional numerical model for computing tidal flow in a system of interconnecting channels and bays. Drawing...
Coastal Engineering Practice
This proceedings contains 70 papers presented at the American Society of Civil Engineers Specialty Conference Coastal Engineering Practice '92 held at Long Beach, California,...
Urban Development on Alluvial Fans
An increasing number of developments has been planned in areas subject to flood hazards. To protect developments from flood damage and to prevent accumulated negative effects on floodplains,...
Gradual Development of Bores in Canal Systems
Modern computer programs for modeling unsteady flow in open channels are typically constructed using a momentum conserving form of the Saint Venant equations. This allows computation of...
Engineering Answers to Groundwater Impact Questions Using a Geographic Information System (GIS)
Environmental concerns have raised complex questions about the impacts of increased groundwater levels adjacent to navigational pools along the Red River, Louisiana. Previous studies had...
Summary Conclusions & Recommendations of the 1991 Washington State Ports and Transportation Systems
Since 1975, the Washington Public Ports Association and Washington State Department of Transportation (WSDOT) have conducted periodic performance assessments of the state's ports, waterways,...
Modifications to Coal Pier 6 Made Necessary by a Deeper Channel
In 1987 it became apparent to the Norfolk Southern Corporation that the U.S. Army Corps of Engineers proposed dredging of the Norfolk, Virginia Harbor would become a reality. Coal Pier...
Riprap Design in Marine Terminals
Navigation vessels in otherwise quiescent waterways sometimes generate forces that require stabilization of the bed or banks. Since riprap is an accepted and dependable means to armor...
Environmental Monitoring and Operator Guidance System (EMOGS) for Shallow Water Ports
Port facilities have increasingly been required to accommodate longer and deeper draft ships. Existing approaches to many ports consist of long shallow channels which can make transits...
Risky Business: Can We Believe Port Risk Assessments?
What is the risk that a maritime incident resulting in catastrophic consequences (environmental damage or loss of life) could occur in a U.S. port or waterway? How does one calculate the...
Barbers Point Harbor: A Unique Solution for Port Upgrade
A remote-controlled model of a C9 containership was used to evaluate the navigability of existing harbor and entrance channel conditions in a three-dimensional physical model of Barbers...
Ship Simulation of the Houston Ship Channel, Houston, Texas
The Houston Ship Channel (HSC) consists of approximately 65 miles of improved deep-draft channels. The present channel is 400 ft wide and 40 ft deep at mean low tide for most of the channel...
Draft Chapter 2?Planning and Design Guidelines for Small Craft Harbors?Entrance Design and Breakwaters
The paper will present a very preliminary draft of the second chapter of an ASCE manual that is currently being developed. The new manual is entitled Planning and Design Guidelines for...
An Overview: Wetland Restoration, Protection, and Establishment by Beneficially Using Dredged Material
Dredged material has been used beneficially by mankind for many years; in the past two decades it has purposely been used to restore and protect existing wetlands, and to establish new...
Three Dimensional Modeling of Watershed Hydrology
A three dimensional finite element numerical model is developed for the first order watershed hydrology using 8-noded isoparametric brick elements. The 3-D subsurface flow in a hillslope...
The Changing Alliance Between Navigational and Environmental Interests in the ACF Basin
Structural modifications imposed on the Apalachi-cola River for navigation, their environmental impacts and government actions to address these impacts are reviewed. Past structural modifications...
Trickle Channel Rehabilitation
Perhaps the primary factor driving the need for trickle channels is urban development. Rural streams in the region display a hydraulic stability and vegetative cover that is resilient...
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