Start Date
27-4-2023 12:00 PM
Document Type
Poster
Description
The watershed delineated in this project includes JCCC’s campus as an area and low point is provided as a baseline. The peak runoff must be calculated by first surveying total and specific land areas for runoff-coefficients, & Manning’s n; subsequently, TR-55 will be used (Technical Release 55) - as applicable to small watersheds – to compute the necessary Time of Concentration (Tc) with 3 types of flow: Sheet flow, Shallow Concentrated flow, and Channelized flow. Multiple iterations will be tested against each other using both TR-55 and Kerby-Kirpich. With the necessary variables obtained, the Rational method is used to quantify the Peak runoff of the Watershed in cubic feet per second. The Project was created using industry standard software Bluebeam and calculations were performed with Excel; land topography and area was determined with manual surveying, AIMS and planimetric data; Supplementary 3D topography was created with LiDAR/Photogrammetry, Contour mapping and modeling software.
Image
The Peak Runoff as Determined by TR-55 and the Rational Method
The watershed delineated in this project includes JCCC’s campus as an area and low point is provided as a baseline. The peak runoff must be calculated by first surveying total and specific land areas for runoff-coefficients, & Manning’s n; subsequently, TR-55 will be used (Technical Release 55) - as applicable to small watersheds – to compute the necessary Time of Concentration (Tc) with 3 types of flow: Sheet flow, Shallow Concentrated flow, and Channelized flow. Multiple iterations will be tested against each other using both TR-55 and Kerby-Kirpich. With the necessary variables obtained, the Rational method is used to quantify the Peak runoff of the Watershed in cubic feet per second. The Project was created using industry standard software Bluebeam and calculations were performed with Excel; land topography and area was determined with manual surveying, AIMS and planimetric data; Supplementary 3D topography was created with LiDAR/Photogrammetry, Contour mapping and modeling software.
Comments
The faculty mentor for this project was Matt Andring, Drafting.