Drainage system pdf

In this series of lectures “Main Drainage Systems” we shall discuss the procedure to design a main drainage system. After a brief introduction into the need for drainage in agricultural lands (Chapter 2), the components of a drainage system are discusse with special emphasis on the main drainage system (Chapter 3). The system is designed and constructed to collect, treat, and remove storm water from the highway right of way.

A stormwater drainage system can be as simple as a ditch that outlets to a stream or as complex as a system comprising numerous intakes, manholes, and pipes along with ditches, stormwater retention or detention basins, and pump stations. Good drainage needs to be taken into consideration at the early design stages in order to secure a long life for the road.

A drainage system will include all the components needed to ensure that the substructure is properly drained , and may be formed of components such as open ditches, closed ditches with pipe drains and drainage through stormwater drainage pipes, channels and culverts. NDS Principles of Exterior Drainage - Short Course Composite Drain Geocomposites or subsurface interceptor drains (Figure 3-6), are a type of prefabricated drain systems. Large sheets of drainage core are wrapped in drainage fabric and are often directly attached to standard drain pipe at the bottom.

They are hung and staked into place. Flow to Conservation area. The site plan and drainage area map for Example is shown in Figure 6. The site is a small commercial facility that hosts receptions and social events and therefore has a large number of parking spaces.

Drainage systems are in place to remove the excess water in development.

This could be floodwater, rainwater, and different kinds of runoff. The river systems of India can be classified into four groups viz. Himalayan rivers, Deccan rivers and Coastal rivers that drain into the sea. Rivers of the inland drainage basin (endorheic basin).

Streams like the Sambhar in western Rajasthan are mainly seasonal in character, draining into the. Wide HDPE Dura Slope in Complete Kits make it easy to buy. Trench Drain Supply features all major manufacturers at great prices. Variety of Color Grates Buy Online. Design guidance is provided for the design of storm drainage systems which collect, convey, and discharge stormwater flowing within and along the highway right -of-way.

Methods andprocedures are given for the hydraulic design of storm drainage systems. State drainage systems shall not be outletted into municipal systems which carry both storm water and sanitary sewage, nor will any such municipal system carrying both storm water and sanitary sewage be outletted into State systems. Mixed drainage includes both of the aforementioned types of rainwater drainage systems. System components A rainwater drainage system consists of a network of collectors, accessories and final discharge devices, which direct the water to the public network. These elements are described in table 2. The purpose of this document is to provide guidance for road authorities and other relevant bodies in respect of road drainage.

Chapter sets out the legal background in relation to road drainage and Chapter summarises current practice throughout the country. In addition to providing for the passage of existing natural drainage channels through the project, a highway drainage system must provide for the collection and disposal to natural drainage channels of all rainfall on the right of way and of all ground water flow that may be intercepted during roadway construction.

Quantum structured wall range for sewer and highway drainage applications. Surface Drainage System. For surface drainage to be successful, ditches must be dug in a parallel pattern. The ditches are shallow and will act as canals for run-off water.

The flow of water through well-defined channels is known as drainage and the network of such channels is known as drainage system. The drainage pattern of an area is the result of the geological time perio nature, and structure of rocks, topography, slope, etc.