UV Acceptance
Ultraviolet disinfection of wastewater is increasingly being used. The method has been available since the early part of the century, but chlorine was widely available and generally cheaper....
Site Investigations: A Guide (available in Geoenvironmental Special Issue only)
A geotechnical engineer looks at the evolution of reports on subsurface conditions, the most uncertain portion of construction. Most of the cost and risk of construction occurs beneath...
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....
The Invisible Infrastructure
Most developed countries have 50- to 100-year-old underground utility systems that carry far greater loads than their designs. They're difficult to repair or replace, yet...
Solutions Manual-Fluid Mechanics
An interactive Text
The solutions to the end-of-chapter exercises of
Net Gains
Project Web sites can be as simple as a repository for drawings and documents or complex enough to allow real-time dialogue between interested parties and project monitoring. One of GZA's...
Sell-Off
In 1996, the city of Fairbanks, Alaska, offered its Fairbanks Municipal Utilities System for sale to private bidders. Four different entities assumed ownership of the water and wastewater,...
Public Water in Private Hands
The nation's water utilities are becoming a battleground for control between private companies that want a share of the market and public employees who are bidding for their...
Catchy Culverts
Franklin County, Ohio, installed box culverts in Norman Ditch to prevent flooding of surrounding homes, streets and sewer lines after heavy storms. The design team, given tight deadlines...
Mapping Convergence: GIS Joins the Enterprise
While utilities and telecommunications companies have led the way in maximizing GIS's potential, some progressive municipalities are now incorporating GIS into every aspect of their daily...
A New Look at Old Man River
After the 1993 Midwest flood, a research team conducted one of the largest aerial mapping projects in U.S. history�a year-long, $3.7 million effort that demonstrates the utility of photogrammetry...
Pumped-Up Pumping Stations
The Washington Suburban Sanitary Commission, a public utility serving Prince Georges County and Montgomery County, Md., publishes a design guide (DG-04) to help outside consultants meet...
Geotechnical Baseline Reports of Underground Construction
Guidelines and Practices
For many years, several forms of interpretive geotechnical reports have been incorporated into the Contract Documents for underground construction projects. Based on recent feedback obtained...
Groundwater
An Endangered Resource
This proceedings,
Nature's Payback (Available in Geoenvironmental Engineering Special Issue)
Environmental compensation is now a major concern for utilities and other developers who must compensate for impacting wetlands, streams and other environmentally-sensitive areas. To meet...
Rerouting Boston's Utilities
During construction of the Central Artery/Tunnel project in downtown Boston, engineers had to move utility lines over and under both new and existing infrastructure and maintain utility...
Geophysical Exploration for Engineering and Environmental Investigations
The U.S. Army Corps of Engineers has prepared this Manual,
Spawning a Hydroelectric Plant
A hydroelectric facility which utilizes fishway attraction water on the Columbia River between Washington and Oregon will tap a neglected source of power and save many endangered fish...
Financing the Future of Storm Water
For Sarasota County, Fla., draining storm water no longer means draining municipal funds. By establishing a modern storm-water utility, the county has provided a dedicated funding source...
Fracturing for In-situ Bioremediation (Available only in
A pilot-scale evaluation of an integrated pneumatic fracturing and bioremediation system demonstrated the enhanced removal of BTX from a gasoline-contaminated, low-permeability soil formation....
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