Runoff Computation Using Spatially Distributed Terrain Parameters
A spatially distributed unit hydrograph is developed based on linear system theory applied to subareas or cells within a watershed Each cell has a unique unit response function independent...
Urbanization and Hydrologic Consequences in Simi Valley, California
Regressional analysis of historical hydrological data including rainfall and runoff data reveal that although there has not been a significant temporal change in the amount of rainfall...
Water Quality Enhancement Using Subsurface Detention
While underground detention systems have gained wide acceptance in the quantitative treatment of stormwater runoff, the potential exists for substantial water quality improvement. Although...
Water Balance of the Niger Basin
A map-based method is used to construct a monthly water balance model of the 2.3 million km Niger River basin in West Africa. The watersheds and stream network within the basin are derived...
Study of Hydraulic Jump Lengths on Inclined Channel Beds
A hydraulic jump is generally used to dissipate kinetic energy of flow to protect man-made structures such as spillways, drop structures, and outlet works. It serves as a perfect location...
Washington State's Stormwater Management Program
Significant progress has been made in developing a stormwater management program at the Washington State Department of Transportation (WSDOT). Topics highlighted in this paper include:...
Storm-Water Treatment Goes Underground
The field of storm-water management continues to evolve as practitioners gain more experience and knowledge from the successes and failures of the past. While we once treated every site...
Designing for the First Flush
This article explains some of the details involved in separating the first flush of a storm event from the remainder of the storm. It also explains how to provide primary treatment of...
Rigid Beam-To-Column Connection Detail for Circular Composite Columns
Steel pipes with relatively thin wall thickness and filled with high strength concrete have been used in building construction. Some of the advantages of this type of column include eliminating...
A New Correction Procedure for Shipborne Wave Recorder Data
A new correction procedure for Shipborne Wave Recorder (SBWR) wave height and spectral data is described. The method is based on a reassessment of the available frequency response measurements...
The Effects of Spatial Resolution in Modeling the North Fork Drainage of the Gunnison River Basin
The U.S. Geological Survey Precipitation-Runoff Modeling System (PRMS) is a modular, distributed-parameter, watershed modeling system developed for use in evaluating the effects of climate...
Parameter Regionalization of a Daily Baseflow Runoff Model
Daily baseflow values are required to characterize the environmental measurements being carried out in several basins in the Province of Genova, northern Italy. The main purpose of these...
Evaluation of the Return Period of the September 1992 Flood in Genova, Italy
The September 1992 flood in Genova caused great damage and loss of life. The flood peak, at the outlet of a 12.5 km2 basin, was estimated at 200...
Dry Weather Stormwater Management - Yakima, WA
The city of Yakima recently completed a Comprehensive Stromwater Management plan to: 1) assess current and projected local runoff quality and 2) develop strategies to improve receiving...
Hydraulic Properties of Surface Runoff on Ash-Mixed Concrete Pavement
The disposal of incinerated sludge ash from wastewater treatment plants is becoming an increasingly difficult problem in highly populated cities. The feasibility of reusing sludge ash...
Mitigation of Non-Point Source Pollution Impacts on Groundwater Aquifers: A Case Study
This paper presents methodologies applied to a regional-scale project to study the potential impacts of storm runoff on groundwater aquifers that store sole source water supplies in Morris...
Joint Pond-Wetland System Performance in Colorado
The Shop Creek retention pond and follow-up wetlands were constructed in 1989, by the City of Aurora, Colorado, and the Cherry Creek Basin Water Quality Authority to enhance urban storm...
Conservation Measures in Urban Storm Water Management
The management of storm water runoff has been given considerable attention by regulatory agencies and practicing engineers in recent years. The current state of-the-art of storm water...
Peak Runoff Prediction for Small Rural Watersheds
A regression model for peak runoff prediction from small rural watersheds was developed using the rainfall/runoff data collected from 43 watersheds in the front range of the State of Colorado....
Brackish Groundwater and Urban Runoff: Source of Supply or Source of Problems?
The Sweetwater Authority hopes to be less dependent on imported supplies in water-short years, and has a goal of developing several alternative sources, including local runoff, brackish...
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