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You Need More Than a Plumber's Helper
Maintenance of subsurface drains may be the least understood and most neglected of all maintenance activities carried out by irrigation districts. Few irrigation districts have a maintenance...

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...

Ground Water Economics in the San Joaquin Valley
Ground water pumping in the San Joaquin Valley to supplement surface water supplies has increased from about 200 thousand acre-feet per year at the beginning of this century to nine million...

Drip Irrigated Cotton: Economics and Water Savings
Groundwater withdrawals for cotton production in the arid Southwest account for about 15 percent of all groundwater withdrawals. In Arizona, cotton's proportion of groundwater...

Water and Sediment Movement in Irrigation Furrows
Water movement in an irrigation furrow is simulated by numerically solving the governing equations of continuity and momentum for unsteady, spacially varied flow in a pervious bed open...

Adjustable Speed Pumping for Irrigation Networks
Adjustable speed technology can be an economically viable method of accommodating the significant fluctuations in flow and pressure produced by certain irrigation networks. Combinations...

Hydraulics and Hydrology of Border Irrigation
Proper description of the hydraulics of irrigation of farmland is necessary in management. Many descriptions of furrow or border irrigation are not adequate to describe truly physically...

Assessing Irrigation Impact on Instream Flow
A hydrologic model to help river system managers determines the demand for irrigation water in a two mile wide strip of land along the river using information which is generally available...

Hydropower Plant on an Irrigation Pipeline
A 940-kW hydroelectric plant was installed on a renovated irrigation pipeline at a Bishop, California ranch. On its way to the ranch, the falling water now generates an average of 4. 2...

Economics and Groundwater
The increasing use of groundwater has resulted in greater lifts, and coupled with increased energy costs is focusing more attention on the economics of groundwater use. The proceedings...

Advances in Irrigation and Drainage
Surviving External Pressures
This collection of papers, presented at the 1983 ASCE Irrigation and Drainage Specialty Conference held in Jackson, Wyoming, July 20-22, 1983, cover a variety of topics related to irrigation...

Journal of Irrigation and Drainage Engineering
The Journal of Irrigation and Drainage Engineering covers all phases of irrigation, drainage, engineering hydrology, and related water management subjects, such as watershed management, weather modification,...

Environmentally Sound Water and Soil Management
These proceedings contain the papers and abstracts presented at the 1982 Irrigation and Drainage Division of the American Society of Civil Engineers Specialty Conference held in Orlando,...

Principles of Project Formulation for Irrigation and Drainage Projects
Prepared by the Technical Committee on Project Formulation for Irrigation and Drainage Systems of the Irrigation and Drainage Division of ASCE. This...

Ugly Dump Site Transformed into Recreation Mega-Facility
The civil engineering project selected as the Outstanding Civil Engineering Achievement of 1981 is described. While other communities bemoan the use and loss of land to refuse disposal,...

Operation and Maintenance of Irrigation and Drainage Systems
Although technical literature concerning the planning, design and construction of irrigation and drainage projects is extensive, this manual aims to fill the gap concerning the operation...

Power Line Stresses Environmental Concern
A recently constructed power line in Colorado and Wyoming has been labeled a leader in protecting the environment and enhancing the area's natural scenic beauty. Built by...

Research Needs in Hydraulics, Coastal Engineering and Irrigation
Last June an ASCE/NSF team gathered at Warrenton, Va., to prioritize research needs in civil engineering. They split the field into 10 subcategories, one of which is Hydraulics, Coastal...

Irrigation and Drainage
Today's Challenges
Thirty-nine papers presented at the 1980 specialty conference of the ASCE Irrigation and Drainage Division are included. The papers are divided into 12 major topics: 1) Challenge of maintaining...

Symposium on Watershed Management 1980
Making Watershed Management Work is the theme of the 1980 Symposium of the ASCE Watershed Management Committee, Irrigation and Drainage Division. In response to this theme, the papers...

 

 

 

 

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