Physical Evaluation of a Buried Drainage System
The drainage problem in the 600,000 acre (1. 5 million ha) Westlands Water District (District), located in the Central San Joaquin Valley in California is that of a perched saline groundwater...
Effects of Streambed Processes on Interaction Between Surface and Groundwater
In open channel systems, the phenomena commonly referred to as 'clogging' is caused by settling of sediment and straining of suspended material as water moves...
Time Rated Infiltrated Depth Families
A new set of infiltration families has been developed, for 'normal' soils to describe cumulative infiltrated depth versus time. This new family of curves is described...
Streamflow Losses in the Santa Cruz River, Arizona
The discharge and volume of flow in a peak decrease as the peak moves through an 89-mile (143 km) reach of the Santa Cruz River. An average of three peaks per year flow the length of the...
Updating the New York City Water System
The New York City Bureau of Water Supply maintains extensive records of all water main breaks dating back at least as far as 1940. A computerized file of the main break records was prepared...
Water Quality Issues at Fossil Fuel Plants
This publication highlights proposed approaches and actual projects for dealing with such water quality issues at fossil power plants as water supply, water treatment, and the protection...
Tunneling Operations and Equipment
The papers included in the Proceedings describe four diverse tunneling prjects of varying diameters, design criteria, ground conditions and construction techniques undertaken at locations...
Innovative Powerhouse Designs
Since 1978, interest in small scale hydroelectric projects in the U.S. has jumped to a new high. Both new sites and modification of existing dams have received scrutiny by both private...
Stormwater Detention Outlet Control Structures
The Hydraulics Division's Task Committee for the Design of Stormwater Detention Outlet Control Structures was formed to review and report on the state-of-the-art of stormwater...
Data Base in Your City's Future?
The city of Bellevue, Wash. computerized its public works maps in 1979 because Bellevue was using the county's maps, and their updating wasn't keeping up with suburban growth. Now this...
Slashing Tunnel Costs
The second U.S. application of the New Austrian Tunneling Method at Washington D.C.'s Metro system is described. The innovative method has been used overseas, but American...
Tunneling a Bridge
Linking an addition to the Georgia World Congress Center in Atlanta required a pedestrian tunnel through a railroad embankment 100 ft wide and 40 ft high, with no disruption of train service...
Jointless Bridge Decks
Deck joints in a bridge are the source of many problems over its lifetime. In time, chances are good the joint will leak, permitting water and salt to leak through. Often this leads to...
Tampa Does It with Mirrors
As one of the nation's fastest growing cities, Tampa needed far more public works dollars. But the traditional source, the real estate tax, can no longer be relied on so heavily,...
Engineering with Fabric
Geotextiles are lending their strength to construction projects where conventional methods won't work. At Washington National Airport, an embankment was built into the Potomac...
San Francisco Outfall: The Champ?
The Southwest Ocean Outfall, with an overall length of 23,400 ft and capacity of 450 mgd, will be major element of the Clean Water Program of the City and County of San Francisco. Offshore,...
Tunnel Shotcreting�Strength in Fibers
Steel fiber reinforced shotcrete (SFRS) costs less, has a lower rate of rebound and allows modern excavating equipment to advance with fewer interruptions than conventional shotcrete....
Unearthing Mt. Baker Tunnel
A new tunnel under Mt. Baker in Seattle is part of major improvements to I-90 between Bellevue and Seattle's business district. Feasibility studies began in 1963, but it was...
Water Supply Management Enters a New Era
Historical demand can no longer dictate water supply planning. The lessons learned in California are that changes in political and social attitudes require new approaches. Taxpayers are...
Civil Engineering: At the Center of Technology for Tomorrow
Between now and the year 2000 civil engineers have the opportunity, perhaps more than any other profession, to help create the monuments of our civilization. This will involve projects...
Return to search