Storm Drainage Design Project - Assignment Example

Only on StudentShare

Extract of sample
Storm Drainage Design Project

A peak rainfall and peak discharge are two different graphs. Lag time is the term for the difference between the peak rainfall from the peak discharge. There is a little chance of flooding if the value of the lag time is great. A lag time that is short will show that water had already reached the river channel at a fast rate. The rise in the discharge shown in a graph is called the rising limb, whereas the decrease in the discharge is called the falling limb.
Areas of large basins normally receive more precipitation than the small ones and the they have a larger runoff. A bigger size of runoff would mean that there is longer lag time as water has a longer distance to reach the river trunk. The shape of the basin that is elongated and larger produces a lower peak flow and longer lag time than a circular basin with the same size (Gillesania, 2006). The effects of the slopes are very important. The channel flow would fall faster down a steep slope therefore it produces a steeper rising limb and a shorter lag time. Considering the soil as an important factor, infiltration is greater on thick soil even if clay would act as impermeable layer. A longer lag time happens when there are more infiltration and more shallow rising limb
A fast overland flow is observed with a higher drainage density. ...
Download paper

Summary

Our study of storm drainage would allow us to understand the meaning of hydrograph. It would allow us to understand why hydrographs are formed. The basic factors that affects hydrographs will also be learned and why do we have to study hydrographs. A graph for the discharge of water in rivers is called a hydrograph…
Author : matildakuphal

Related Essays

Storm Drainage Design Project Master Essay
Dry weather or dry season, normally creates a crust on river beds and wet winters would increase the discharge. The results of hydrograph readings would determine the design of a storm drainage...
8 pages (2008 words) Essay
Design Project in UK
The location of the project is taken to be on the Victoria Street much before joining the Temple Way on the Northern side of the road....
8 pages (2008 words) Assignment
Storm Drainage Design Project Essay
This will allow calculations of the response to any input(rainfall). Hydrographs are often affected by factors of soil saturation and the surroundings. The vegetation type and the steepness of the surrounding lands, with the drainage density. Very dry weather, normally creates a crust on river beds and wet winters would increase the discharge. Sand and clay produces a flashy hydrographs but there could be a difference between the two....
9 pages (2259 words) Essay
Storm Drainage Design Project
There is less chance of flooding if the lag time is great. A short lag time will indicate that water had already reached the river channel at a fast rate. The rise in the discharge shown in a graph is called the rising limb, whereas the decrease in the discharge is called the falling limb....
6 pages (1506 words) Assignment
Storm Drainage Design Project Master Assignment
Subsequently, irrigation was developed as the need to channel the river's flow arose in order to sustain the crops and livestock. The ancient nomadic nature of man changed to a domesticated one: no longer was there a need to hunt for food. In these modern times, much headway has been made in harnessing the full potential of rivers. For instance, there is now a storage and systematic distribution of potable water from rivers through dams, reservoirs, pumps, and piping systems. Further, irrigation systems are now utilized to nourish plantations and livestock. The destructive nature of rivers in...
6 pages (1506 words) Assignment
Got a tricky question? Receive an answer from students like you! Try us!