The methods available for gully control are – (1) Diversion of runoff, (2) Vegetative methods, (3) Construction of temporary structures, and (4) Construction of permanent structures. (1) Diversion of Runoff: Diversion of runoff is achieved by constructing diversion drains. The diversion drain is a shallow channel put across the slope above the gully. The design principles of diversion drains are [...]
The following points highlight the four main types of permanent structures for gully control. The types are: 1. Spillway 2. Rubble Masonry Dam 3. Concrete Dam 4. Gabion Structure. The gully control structures are laid in the gully section, throughout the length, according to the profile of gully bed. Amongst different types of spillways, the chute spillways are located at [...]
Gullies are normally formed by the increased surface runoff. The gully formation depends on all those factors, which directly or indirectly affects the watershed's deterioration. The main factors may be the man's misuse of land, intense rainstorm, moderate intensity rainstorm for longer duration, and rapid snow meltings. The factors associated to rainstorm affect the quantum and rate of runoff, which [...]