Conventional Storm Drainage Which Recharges the Groundwater
Since the demand for water is on the rise, more resourceful means of retaining and controlling the release of stormwater is needed. This retained stormwater may then be used for aesthetic...

Routing for Lake and Tidal Canal Drainage System
A routing method is presented for lake and tidal canal interconnected drainage system in coastal urban areas. Combing reservoir routing, channel routing, and discharge computation of the...

Management of Water Resources Distribution in Iran
On the basis of 45th principle of the Iranian Constitution, seawater as well as river waters, streams and any other natural course, whether surface or underground, also floods, wastewaters,...

Wetland Drainage and Streamflow Trends in Illinois
Long-term streamflow records from 30 gaging stations in Illinois were analyzed to assess the impact of wetland drainage on streamflow trends. The objective of the research was to determine...

Combined Application of HEC-1 and HEC-2 Simulation Models in Dike Safety Analysis
The potential flood impact of a breach in a dike for a large spreading-area on a nearby waste storage facility was investigated. An HEC-1 model was used for generating breach hydrographs...

Runoff Volume Frequency Estimation
An explicit formula is reported to express the volume of runoff resulting from a single rainfall event in terms of the catchment and rainfall characteristics. This formula is obtained...

Channel Routing Effects on Unit Hydrograph Shape
Channel routing effects on hydrograph shape and the interpretation of downstream unit hydrographs are examined. A new dimensionless routing parameter is presented....

Effect of Manning's Roughness Coefficient in Simulating Flow Parameters in Natural Channels
Manning's roughness coefficients are presented for three of the oldest and largest irrigation canals in Egypt. The discharges ranges from 35 to 318 m3/s....

Drought-related West Tennessee Channel Bank Failures
Massive bank failures occurred in 1988 along a 14-kilometer reach of the lower Obion River channel in Dyer County, West Tennessee where the river flows through an abandoned Mississippi...

Fluvial Recharge of Sand Mining Pit
Accuracy in modeling fluvial processes becomes increasingly important as development occurs along waterways. The FLUVIAL-12 (1, 2) model is used to simulate the recharge of sand mining...

Development of Crop Coefficients Using Lysimeters
A long term record of evapotranspiration by grass as measured with the large weighing lysimeter at the University of California at Davis provided an excellent background for the initiation...

Automation of a Truck-Mounted Drill Rig
Truck-mounted drill rigs used for soils properties investigation, foundation evaluation, ore exploration, and producing monitor and water wells typically require, because of their weight,...

The Changing Face of Construction Management?Staffing up for a Major Program
The East Bay Municipal Utility District's (District) Wastewater Department annual construction program grew from $2.4 million in 1986 to $60 million in 1991. The District...

Environmental Engineering
This proceedings, Environmental Engineering, of the 1991 Specialty Conference on Environmental Engineering held in Reno, Nevada on July 10-12,...

The Debate Over Large Dams
Dam megaprojects across the globe are under increasing scrutiny. Critics say large dams have clearly lost their luster. While the outcry over huge public subsidies and high ecological...

Water, Water, Where?
Water�who gets it, where it comes from, who pays for it�has always been a central issue in California. Rapidly increasing demand, fierce environmental opposition to new sources and a drought...

Burying By the Bale
The Gallatin National Landfill, now under construction in central Illinois, incorporates multiple safeguards to isolate refuse from surrounding water and soil with an inward gradient design....

Nutrified Sludge
A new biological treatment process, Nutrification, enables a wastewater treatment plant to remove phosphorus from influent water at an operating and maintenance cost 35% less than that...

Landfill Park: From Eyesore to Asset
By reclaiming a 50 acre landfill as a recreational area, Cambridge, Mass. increased its open space by 20%. The park includes three softball and three soccer fields, one multisport field,...

Air-Water Transfer: The Role of Partitioning
A review is presented of the role of air-water equilibrium in determining the direction and rate of transfer of chemicals between water bodies and the atmosphere. Because this diffusive...

 

 

 

 

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