Proportional Weirs for Stormwater Pond Outlets
Many jurisdictions mandate that new developments must not cause runoff to flow downstream, during and after rainfalls, at rates higher than preconstruction. A common for controlling runoff...
Santa Barbara Hydrograph with Green-Ampt Infiltration
Numerous models are available to estimate rainfall-induced runoff from watersheds. The leading criteria in model selection is often reproducibility. Models that are reproducible are often...
Evaluation of Runoff Prediction Using Synthetic Rainfall and CREAMS
Of all the climatological data, rainfall is the variable to which a watershed responds most significantly. The amount and sequence of occurrence of rainfall are most important in the prediction...
Surface Erosion Control on Roads in Granitic Soils
The impact of forest road construction on water quality and fish habitat is a serious problem for engineers, hydrologists, and foresters. Control of surface erosion is an important and...
Forestation in Northeastern Brazil and Its Influence on Quantity and Quality of Runoff
A study is being conducted in Northeastern Brazil, at Cruzeta, in the Semi-Arid Tropic, to estimate runoff and soil displacement caused by precipitation and the influence of vegetation...
Auditors Eye the Environment
Environmental audits are being used by an increasing number of companies, and are providing a substantial new market for environmental engineers. Environmental audits are formal self-appraisals...
The SRI Technique for Flood Frequency Analysis
This paper presents a technique for flood flow frequency analysis called the Storm Response Index (SRI), and a case study using the technique. The SRI method is based on the development...
Stormwater Routing for Small Sites
Traditional hydrologic analyses and detention design procedures are too time consuming and costly to be warranted for small projects. This paper discusses a direct solution for sizing...
Tidal Flooding Study for a Seattle Watershed
The paper reports on a study to develop a correlation between rainfall volumes and tidal storm surges based on recorded rainfall and tide data. This correlation was used to establish tidal...
Real-Time Flood Forecasting on Small Computers
A real-time, rainfall-runoff, flood forecast model, developed by the Corps of Engineers Hydrologic Engineering Center (HEC), was applied to two of tributary basins in the Ohio River System....
Suspended Sediment Transport from Nonpoint Sources
Precipitation, runoff, and suspended sediment concentration data were collected in a predominantly agricultural watershed in southwestern Illinois from January 1982 through October 1984....
Numerical Models for Two-Dimensional Surface Runoff
Numerical models for surface runoff in watersheds having two-dimensional or horizontally varying topography are presented. Two finite element methodologies, a standard Galerkin and a streamline...
Applications of Discrete-Element Computational Models to Transient, Multi-Dimensional Problems in Hydrology
The direct computer simulation technique, discrete-element method (DEM) was applied in the development of transient, multi-dimensional mathematical models for simulating hydrologic conditions...
Time and Space Resolution for Continuous, Dynamic Storm and Runoff Model Studies
Continuous modelling correctly reproduces start-up values of storages and loss rates and statistics for properties of hydrographs. Kinematics of storms should be considered. The effects...
Development of Flood Peak Regression Equatins for Small Watersheds in Southwest Florida
Hydrologic investigations were performed on the Belle Meade-Royal Palm Hammock area in Collier County, Florida. The study area, encompassing approximately 79 square miles (205 km**2),...
Accounting for CADD Center Costs
The purpose of developing a CADD cost center is to segregate all costs related to the CADD operation so that you may receive fair compensation for CADD usage and to ensure fair charges...
How to Strengthen Client-Consultant Relationships
Effective use of a professional consultant is often diminished by poor management-staff communication. Consultants, because of their previous experience, may be able to provide input to...
Assessing Results Weather Modification Programs
There is a continuing need to assess the effectiveness of operational precipitation augmentation weather modification programs. These assessments can serve a variety of needs including:...
CN Approach to Water Budgets for Small Watersheds
In some states, issuance of a surface mining permit is dependent upon an assessment of the current hydrologic baseline of the area to be mined and of the probable future impacts of mining...
Management Planning for Survival and Growth
Essential factors in company growth are the identification of client needs and wants and recognition of the needs and constraints of the organization. Successes are generated by timely,...
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