The Best Laid Plans: Capitol Crossing Restores L?Enfant?s Vision of "Federal City"
In 1791, President Washington appointed French engineer Pierre Charles L?Enfant to plan Federal City ? today?s District of Columbia. L?Enfant?s methodical design called for the center of the city to be...
Evaluation of IA SWAT Testing Protocol for ET Controllers
In recent years the Irrigation Association (IA) has developed a testing protocol for Smart Water Application Technologies (SWAT). These technologies consist of irrigation controllers such...
History of the USDA-ARS Experimental Watersheds on the Washita River, Oklahoma
A national experimental watershed network, operated by the Agricultural Research Service of the US Department of Agriculture, was established in 1959 to conduct research on the effects...
Finished With a Flourish
The Walt Disney Concert Hall has survived budgeting shortfalls, a major earthquake, and formidable design changes to become an evocative beacon for the arts in downtown Los Angeles....
Irrigation Hydrology: Crossing Scales
Hydrology is the science concerned with distribution, circulation, and properties of water of the earth and its atmosphere, across the full range of time and space scales. Subject matter...
A Paradigm Shift in Irrigation Management
In coming decades, irrigated agriculture will be called upon to produce up to two thirds of the increased food supply needed by an expanding world population. But the increasing dependence...
Water Quality Aspects of Irrigation and Drainage: Past History and Future Challenges for Civil Engineers
This paper presents a brief history of irrigation and drainage related to ASCE activities on its Jubilee. This paper discussed legislation and policies that affect irrigation and drainage...
MAX Transit
Two expansions to the Metropolitan Area Express (MAX) light-rail transit system in Portland, Oregon, illustrate the value of exemplary planning and creative financing. The Airport MAX...
Reconstructing a Grand Boulevard
Wacker Drive, the two-level riverfront roadway that has defined the boundary of Chicago's business and cultural district for more than 75 years, is undergoing a much-needed...
Out of the Way
The 0.9 mi (1.4 km) long Fort Washington Way was built in 1961 as a distributor for local downtown traffic. It quickly became a critical section of the region's Interstate...
The Washington Region: Land Use and Travel Patterns
The Washington Region is the eighth largest metropolitan area in the United States, with a population of four million people spread over 4,000 square miles. By 2020, the region's population...
Public Transportation in Washington, D. C.
The Washington, D. C. metropolitan area is served by a world class transit bus and heavy rail subway system operated by the Washington Metropolitan Area Transit Authority (WMATA). The...
Beach Town Cleanup
The Avila Beach remediation project in California required the demolition of numerous structures and part of the beach in order to remove more than 200,000 cu yd (153,000 m�) of contaminated...
Introduction
This chapter serves an introduction for the book. The purpose of the manual is to present to users a process of selecting an irrigation method and to inform them of the capabilities and...
Irrigation Method Selection Process
Intelligent selection of the irrigation method that best meets the goals and objectives of an irrigated agricultural development is of primary importance in the design process. A system...
Surface Irrigation
Surface irrigation refers to a large group of irrigation methods in which water is distributed by gravity over the surface of the field. Water is typically introduced at the high point...
Drip/Micro Irrigation
Drip/micro irrigation (also previously referred to as trickle irrigation) refers to a variety of irrigation methods in which water is delivered directly to small areas adjacent to individual...
Sprinkler Irrigation
In sprinkler irrigation, water is applied to the soil using a pressurized piping system with nozzles, jets, or perforated pipe that sprays the water into the air. These sprinkler devices...
Subirrigation: Water Table Management
Water table management (subirrigation) is accomplished by controlling the water table, usually through a subsurface drainage system. The crop is subirrigated with water being furnished...
Economic Valuation of Agricultural Water Use for Large-Scale Modeling
(No paper) A state-wide irrigated agricultural production model has been developed for California. The model is an extension of the Central Valley Production (CVP) Model that was most...
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