The term sewer renovation refers to a process techniques and measures for restoring or improving existing drainage systems. Sewers must be designed, built, maintained and operated in such a way that the structural condition is uphold over the useful life.
Through reports on incidents such as canal falls, floods and water pollution as well as from previous investigations, the option of possible impairment of the existing drainage systems can be inferred.
With the sewer renovation the functionality of the drainage systems can be restored and the service life extended.
The sewer renovation is divided into repair, renovation and refurbishment.