Design of a manhole - autocad dwg

It is convenient; before beginning to detail the most widespread criteria on design of intakes; specify about the need; types and parts that make up the intake. it is common for the land potentially to be irrigated in a valley; they are at a considerable distance from the riverbed where the water is to be obtained; or in some cases, land of relatively high level with respect to the level of water in the river. contains graphic pieces of the design and structural calculation of the intake with construction details in autocad - dwg.