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Home > Activities > PICP Seminars 2019

PICP Seminars 2019

Seminar on PICP and bio-retention cells

20-31 May 2019


Permeable Interlocking Concrete Pavers (PICP) are an increasingly popular solution for managing stormwater in urban areas as they don’t take up any space. Although they have been successfully used the world over for this purpose, many of the existing installations in South Africa are failing – possibly due to lack of proper environmental control and maintenance. Bio-cells offer a similar solution to PICP – taking up some space but with less risk of failure than PICP. This seminar will consider best practice for the design, construction, operation and maintenance of PICP and bio-retention cells in South Africa drawing on extensive use of both in the USA.


Prof Neil Armitage, PrEng, PhD is Deputy Director of the ‘Future Water’ research institute at the University of Cape Town (UCT). He was the lead author of the Water Research Commission (WRC) guidelines on Sustainable Drainage Systems (SuDS) and Water Sensitive Design (WSD). He has been leading South African research into the design, construction and maintenance of PICP since 2015.

Prof Ryan Winston, PhD, PE is an Assistant Professor in the Department of Food, Agricultural, and Biological Engineering at the Ohio State University. He has undertaken extensive research in the design, operation and maintenance of permeable pavements, bio-filters and green infrastructure. He has presented at over 113 stormwater-related workshops in the USA on these topics.





Town / City




21 May


13:30 – 18:00

Marks Park Sports Club, Emmarentia


22 May


12:30 – 17:00

Tshwane House; 320 Madiba Street


23 May


13:00 – 17:30

George Bowls Club (next to Golf Club)


27 May

Cape Town

13:30 – 18:00

Water & Sanitation HO, 8 Voortrekker Road


28 May

East London

12:30 – 17:00

East London Golf Club


29 May


12:30 – 17:00

Lecture Room, 17 Supply Road, Springfield


30 May


13:00 – 17:30

PMB Cathedral

Programme (NB Only tea / coffee will be made available at the venues)

  • Registration
  • Welcome
  • UCT research on PICP
  • Questions?
  • Tea / coffee break
  • The USA approach to the design and maintenance of PICP and bio-retention cells
  • Open discussion
  • The road ahead
  • Closure

This seminar has been sponsored by the Water Research Commission (WRC) of South Africa; free attendance. Register before 10 May 2019 with Ms Kim Liu, by email (preferably), or phone 076 122 9663. The course is accredited for 0.5 days CPD.

PICP & Biofilters presentation - Neil Armitage - /sites/default/files/image_tool/images/416/Future_Water/Documents/PCIP%20%26%20Biofilter%20seminar%20series%2C%2021-30%20May%202019%20-%20Neil%27s%20presentation%20%28Rev%201%29.pdf

Bioretention Cell Performance, Construction, and Maintenance presentation - Ryan Winston- - /sites/default/files/image_tool/images/416/Future_Water/Documents/Bioretention%20South%20Africa.pdf