Files and links (1)
PDFOpen Access (License Unspecified), Open Access
Thesis
Characterization of the rainfall-runoff response of an urban combined sewer catchment using observed and analytical methods
Master of Science (M.S.), Drexel University
Jun 2012
DOI:
https://doi.org/10.17918/etd-3892
Abstract
In this study, hydrologic and hydraulic observations were made in two catch-basins and a manhole at the end of a two hectare urban combined sewer catchments in Bronx, New York City over the course of nine months. These measurements included 28 rain-events that were used to characterize the rainfallrunoff response and combined sewer flow in the collection system. The observations were used to assess the ability with which standard hydraulic and hydrologic methods can predict the actual rainfall-runoff response of this particular urban catchment. The analytical method assessed in this study are listed in the Technical Release 55 (TR-55), a manual for developed by the Soil Conservation Service (SCS) for urban stormwater analysis and design. These methods currently have popular usage by municipality stormwater code and practicing engineers and included the following: the SCS Curve Number Runoff Method, Rational Method for peak flow, and analysis of lag-to-peak time between peak rainfall intensity and peak sewer flow. The results of this study show a strong regression correlation (R2 = 0.95) for the Curve Number method, and a weaker correlation for the Rational Method (R2 = 0.60) and the lag-to-peak analysis (R2 = 0.69). Observed deviations from each model may be the result of rainfall variability and antecedent moisture conditions.
Metrics
28 File views/ downloads
22 Record Views
Details
- Title
- Characterization of the rainfall-runoff response of an urban combined sewer catchment using observed and analytical methods
- Creators
- Scott Martin Jeffers - DU
- Contributors
- Franco Montalto (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering; College of Engineering; Drexel University
- Other Identifier
- 3892; 991014632729004721