Putting Nature First
From salamander tunnels to hotels for red-legged frog, the $450 million Los Vaqueros dam and reservoir project in northern California put environmental concerns first in its planning and...
River Replication
In 1997 a U.S. patent was granted to the U.S. Army Corps of Engineers for a new applied engineering tool and methodology called micromodeling, which uses a small-scale physical model to...
Under Pressure
The Arrowhead East and West contracts for the Inland Feeder water conveyance system being built in California consist of 51,500 ft (15,700 m) of tunnels that cross the San Andreas Fault...
Main Line Mending
Both the Washington Suburban Sanitary Commission (WSSC), of Laurel, Maryland, and the Providence Water Supply Board, of Rhode Island, are conducting massive, multimillion-dollar rehabilitation...
Relining a Relic
By the mid-1980s most of the Boston Low Service water supply network had been in operation for more than 100 years�with little regular maintenance. Many of the system's air...
Sustaining Urban Water Resources in the 21st Century
This proceedings,
Stream Stability and Scour at Highway Bridges
Compendium of Stream Stability and Scour Papers Presented at Conferences Sponsored by the Water Resources Engineering (Hydraulics) Division of the American Society of Civil Engineers
Sponsored by the Water Resources Engineering (Hydraulics) Division of ASCE. This collection contains 75 papers and 321 abstracts presented at conferences...
Environmental Engineering '99
This proceedings,
Conquering the Cold
Three projects�a water treatment plant, an airport, and a hydroelectric plant�illustrate how practicing engineering in Alaska differs from working in the contiguous 48 states. Permafrost,...
For the Duration
The U.S. Army Corps of Engineers developed a new grouting method called duration grouting when constructing the foundations for the Portugues Dam in Ponce, Puerto Rico. The site is marked...
A Joint Effort
In a public-private partnership that required close working relationships, a project that aimed to restore an old canal system� and its waterfront�in Richmond was combined with an effort...
CSO Controversy
Under the Environmental Protection Agency's (EPA's) national combined sewer overflow (CSO) policy, more than 900 cities will no longer be able to discharge untreated...
The Ultimate Challenge
The U.S. Department of Energy (DOE) has spent $2 billion and more than a decade studying the feasibility of constructing a nuclear waste repository inside Yucca Mountain in Nevada. The...
Passage to 2000
On Dec. 31, 1999 the United States turns over ownership and operations of the Panama Canal Commission. In preparation for the handover, the Panama Canal Commission, an independent U.S....
Seattle Solutions
Many of Seattle's most important bridges are vulnerable to serious damage if a much-anticipated big earthquake hits. A city-wide study designated lifeline structures for retrofitting,...
Sealing the Subway
Although work on the Los Angeles Metro subway is stopped for now, the project has introduced a number of innovations and advances to the American tunneling community, including the use...
Learning from Disaster
After each earthquake, civil engineers learn more about what can be done to minimize the damage to infrastructure from seismic events. The recent large earthquakes that struck Izmit, Turkey,...
When the Levee Inflates
Rubber dams�long, flexible tubes, anchored to a concrete base and abutments and inflated with air or water�have been used since the 1950s, but installations have risen as technology has...
Rebuilding Bosnia
A civil engineer serving in the U.S. Army Reserve on deployment in Bosnia-Herzegovina gives a first-hand account of construction in a war-torn country. As a member of the Environmental...
Interest in Deposits (available only in Geoenvironmental Special Issue)
Sediment accumulating in reservoirs worldwide is gradually reducing storage capacity, posing a long-term threat to supplies of drinking and irrigation water. The buildups also highlight...
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