Putting Wetlands to Work
Wetlands, whether natural or engineered, have enormous potential to clean up wastewater, but in the past, the public called on civil engineers to drain wetlands en masse as a public benefit....
Cliffside Correction
Construction of a 10 km sewer collector in Valpara�so, Chile, came to a halt due to construction difficulties experienced during pipe jacking operations. Analysis revealed not only construction...
Role of Constituents on the Behavior of Flowable Fly Ash Fill
Flowable fills are increasingly used as backfill materials for pipes and retaining structures because of ease of placement and performance of the solidified material. But the role of its...
Fluid Mechanics
An Interactive Text
This multimedia CD ROM,
Hydraulics of Open Channel Flow
This text is designed to make a deliberate effort to extend the modern fluid mechanics approach into the analysis of open channel flow without necessarily requiring the use of advanced...
Bridge Within a Bridge
A multinational consortium retrofitted the Tagus River suspension bridge in Lisbon, Portugal. The retrofit included widening the roadway deck from five to six lanes, installing a railroad...
Watching Under Boston
Managing the daily operations of Boston's Central Artery/Ted Williams Tunnel project requires integrating a variety of hi-tech systems to ensure efficient traffic flow. The...
John F. Kennedy Student Paper Competition and Specialty Seminar Summaries
This proceedings,
Water for a Changing Global Community
This six-volume collection contains the papers presented at the 27th Congress of the International Association of Hydraulic Research on Water for a Changing Global Community. The Proceedings...
Bringing Low Flow to Eskimos
Engineers in Alaska initiated a program to bring potable water and wastewater service to a town of 500 Yup'ik Eskimos. This entailed building a 7.2 km boardwalk over permafrost...
Grouting to Great Depths
Logan Martin dam on the Coosa River in Alabama has been plagued by underseepage since its construction in 1964. The karst forming the dam's foundation allows water to flow...
Debris-Flow Hazards Mitigation
Mechanics, Prediction, and Assessment
This proceedings,
Environmental and Coastal Hydraulics
Protecting the Aquatic Habitat
This proceedings,
Application of One- and Two-Dimensional Flow Models for an Evaluation of Riverine Wetland Hydrologic Functions
Preservation and restoration of wetland habitats require maintaining a desirable hydrologic regime. The criteria for such a hydrologic regime are established based on marsh inundation...
Hydraulics of Subsurface Flow Constructed Wetlands
Resistance to flow through subsurface flow wetlands is described by Darcy's law or by Ergun's equation. Both representations are combined with the continuity...
Three-Dimensional Numerical Model for Fish Bypass Studies
This paper describes a numerical model developed for evaluating different options for fish bypass systems at Wanapum Dam on the Columbia River, WA. The model predicts the complex patterns...
An Extended Relaxation Technique for Unsteady Flows in Networks
A recent enhancement to the FLD WAY model is the addition of an extended relaxation technique for modeling unsteady flows in a dendritic (tree-type) network of channels with tributaries...
Application of High-Resolution Schemes to Free Surface Flows in Irregular Channels
A 1-D flow model employing a high resolution scheme based on the Total Variation Diminishing concept is applied to non-prismatic channels of irregular cross-section. The hydraulic properties...
Depth-Averaged Equations for Free Surface Flows
Depth-Averaged equations for free surface flow are derived by applying fundamental physical principles of mass conservation, momentum and moment of momentum on a control volume from the...
Pier Width and Local-Scour Depth
Presented here are the results of an enquiry into the effects of pier width on local scour depth. The results show that scour depth does not scale linearly with pier width unless there...
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