Catch the Wind
Wind turbines can now produce energy that is cost-competitive with other, more conventional power generation methods. The increased efficiency is due in part to the turbines'...
Environmental Engineering '99
This proceedings,
Tunneling under Trains
The Singapore deep tunnel sewerage system consists of a 90 km long tunnel network that will convey wastewater by gravity flow to two new secondary treatment plants being planned for the...
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,...
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...
Safe Passage
Past studies have indicated that the existing juvenile fish bypass system at the second powerhouse located at the Corps of Engineers' Bonneville Dam on the Columbia River...
A Race Against Time
The coastal hillsides of San Mateo County, California, were quickly developed during the post WWII construction boom. Although the land is prized for its scenic beauty, the underlying...
A Tale of Two Bids
In early 1992, the Escambia County Utilities Authority determined that its 2 mgd Avondale Wastewater Treatment Plant should be expanded to 8 mgd to meet the growing needs of the Pensacola,...
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...
Making Way for Water
The State Water Project Coastal Branch Aqueduct and Extensions brings 48,000 acre feet of water annually to 23 Southern California communities. built over five years, the project involved...
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....
Higher Ground
Thirty floods over the course of a century, capped by three major floods in 1993, finally convinced residents of Pattonsburg, Mo., that it was time to move the entire town to higher ground....
Efficiency in the Bag
Heavy snowfalls made the existing water treatment plant at the Lassen Volcanic National Park in northern California inaccessible during winter months. As activity in the park during colder...
Design of Municipal Wastewater Treatment Plants
This revised manual, updated from the previous edition, aims to be the principal reference of contemporary practice for the design of municipal wastewater treatment plants. The manual...
Sludge's Re-Treat
The Shreveport, La., water treatment plant was losing up to 25% of the water it pumped into filter backwashing and sludge. Demopulos & Ferguson Associates (DFA), Shreveport, designed...
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...
Saving a Sinking City
A construction team repairing a bridge or expanding a hospital usually must work around the daily activities of the affected group of people. But for a construction project in Co-op City,...
Japan Studies Floating Airport (Available only in Structural Engineering Special Issue)
Floating airport structures are being studied in Japan. Because of a severe shortage of land, the Japanese and U.S. governments are considering floating structures for civilian and military...
Water Works
The largest water pipeline under construction is in Botswana, in Africa. The North/South carrier project is phase one of a three phase program to bring water to this arid country. Letsobogo...
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