• Process to improve the deteriorated condition of the irrigation systems to keep them in top operating condition.

• Deterioration in the irrigation systems include:

• Cracks in the lining.

• General erosion.

• Settlement of embankment or structure.

• Encroachment of free-board.

• Scour, seepage and severe damage at animal crossings near to the villages.

• All structures and facilities are subject to deterioration in varying degrees with the passage of time.

MAINTENANCE CATEGORIES.

• The maintenance of all types of irrigation canals is usually divided in four categories, Which are:

• Regular routine maintenance.

• Seasonal repairs.

• Annual repairs.

• Emergency repairs.