Environmentally Friendly Transport of Reservoir Sediment for Beach Nourishment with EDDY Pump
Sand impounded behind hydroelectric, flood-control and debris dams not only diminishes the intended function of the reservoir, but also starves downstream coastline by denying natural...
Low Cost Sand Re-Nourishment to Combat Chronic Beach Erosion: Long Beach, California
The City of Long Beach has analyzed and attempted numerous methods of beach erosion control and mitigation along Peninsula Beach. With the exception of beach nourishment, nothing has proven...
Putting Down Roots
Phyto-covers are environmentally friendly and cost-efficient landfill barriers. Compared to traditional clay or geofabric caps, phyto-covers require less maintenance and are more friendly...
Use of Economic Optimization to Assess the Value of Water Marketing
(No paper) There is an increasing interest and implementation of water markets as an allocation mechanism for water in the Western U.S. However, the importance of the timing and location...
Optimization of the Aquifer Remediation Costs and Design with Pulsed Pumping
(No paper) Pump-and-treat is a common technique for the remediation of contaminated aquifers. However, slow kinetic mass transfer at sites contaminated with organic compounds may reduce...
Sensitivity of Stormwater Conveyance System Cost to Design Recurrence Interval
(No paper) The cost of a piped and/or swaled stormwater system is determined principally by the storm recurrence interval (e.g., 5-year design storm) used to design it. That is, the present...
Determination of Flood Frequency as a Function of Mitigation Expenditure
(No paper) This paper describes an approach to the determination of flood frequency as a function of moneys that could be spent to address a road flooding problem caused by runoff from...
Selection of an Optimal Ecosystem Restoration Plan: Decision-Making Criteria in the Planning Process
(No paper) This paper explores various decision criteria for restoration projects and how they may be modeled with existing decision models. Cost-effectiveness, incremental cost analyses,...
Defying Gravity
Vacuum sewers, a technology once used only in areas unsuitable for standard gravity sewer systems, are coming into mainstream use in highly developed areas as reliability improves and...
Automatic Savings
Long-term operations and maintenance (O&M) costs of environmental remediation systems often dwarf engineering and remedial construction costs, but they don's have...
Getting the GISt of Costs
Over the past five years, geographic information systems (GIS) have become powerful graphical database tools, useful to everyone from city planners to departments of transportation, from...
Mitigation of Void Development under Bridge Approach Slabs Using Rubber Tire Chips
The problem of void development under bridge approach slabs has been correlated to the use of integral abutment bridges (Schaefer and Koch, 1992). This void development then causes settlement...
Quarry Conversion
All over the country, old landfills are filling rapidly, and potential new sites�and public support for them�are in short supply. Cities are faced with increasing solid waste disposal...
The New Environment for Consolidation
Environmental consulting firms are planning more acquisitions�and to acquire more companies each time they do�in 1998 than in previous years. This finding, from an exclusive survey by...
Small Town, High-Tech Solution
A reverse osmosis system is a viable treatment option for small communities seeking to achieve compliance with stringent drinking water standards. Here's how one town in Illinois...
Defusing Delay Claims
Many contractors, owners and design professionals are finally becoming aware of and sensitive to high cost and substantial risks associated with litigating delay claims. As a result, the...
Bridge Bashing
Ships can be dangerous to bridges. Collisions are increasing and costs are considerable. There are ways to reduce the risks, but these cost money, too. A 1993 vessel collision with and...
Optimal Fiber Optics
Fiber optics, which played a crucial role in reinventing the telecommunications industry, have historically been noted for their potential in other facets of science and technology. Yet,...
Managing Mobilization Costs
Owners may not realize it, but contractors know that things don't get easier once a bid has been won. The next step is to mobilize equipment and materials for the project,...
Infrastructure Visionaries
The city of Indianapolis is investigating the long-term structural integrity of its infrastructure, in an unusual effort for U.S. municipalities. Most cities are strapped for cash and...
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