Culverts and Causeways Service

Nepid provides specialist services in the assessment of culverts and causeways. In South Africa a Water Use Licence is needed to alter the bed, banks, course or characteristics of a watercourse (National Water Act No. 36 of 1998: Section 21(i)). Badly designed culverts and causeways can have serious negative impacts on river and stream ecosystems because of increased risks of erosion, flooding and because they tend to block the natural movements of aquatic biota, particularly fish.