Royal HaskoningDHV Wins at IMESA/CESA Excellence Awards

Royal HaskoningDHV Wins at IMESA/CESA Excellence Awards

Wednesday, 26 October 2016 Royal HaskoningDHV won yet another prestigious award for technical excellence at the biennial IMESA/CESA Excellence Awards held on Tuesday night at the 80th IMESA Conference in East London. The awards give recognition to well-engineered civil engineering projects for infrastructure. Entrants for the awards must portray the art and science of civil engineering for infrastructure to the general public and indicate how the profession finds answers to challenges. Frank Stevens, former IMESA President, presented the awards. According to Stevens, the high standard of this year’s entrants made judging the Excellence Awards a challenge.

In the category for Water and Wastewater Consultants Royal HaskoningDHV, in joint venture with two local partners, Naidu Consulting and Knight Piésold won for the Ashley Drive break pressure tank project for eThekwini Department of Water & Sanitation.

Royal HaskoningDHV, in a joint venture with local partners, designed and managed the construction of the 20 Mℓ Ashley Drive Break Pressure Tank (BPT) on the DN1400 steel Western Aqueduct pipeline which limited the pressure at the BPT to less than 20 bar and at the worst case along the pipeline to 28 bar.   To handle the varying inlet pressure and flow conditions of up to 400 Mℓ/day at the BPT, a complex inlet control structure was required to mitigate transient pressures and inlet valve cavitation. In addition, a failsafe hydraulic control valve emergency closure system was provided to maintain water supply and prevent overflows during power outages.  The functional design of the inlet control system was based on ease of operation and maintenance with sufficient redundancy provided for slow closure of all valves to minimise transient pressures and prevent overflows.  The accommodation of the full range of design and operating conditions at the Ashley Drive BPT was a challenging prospect and the final solution with a bespoke inlet control structure met all the Client’s requirements for what is their largest and most strategic aqueduct built to date.    


Royal HaskoningDHV Contact 

Kizito Lundu

Regional Marketing & Communications Manager:  Africa, Middle East and India

T: +27 (0)11 798 6000 | E:

Royal HaskoningDHV 

Royal HaskoningDHV is an independent international engineering and project management consultancy. Our 6,500 professionals are guided by a common principle – to enhance society together. Since 1881 we have been working with public and private clients on projects that have improved living conditions for many people. We deliver future-proof solutions while at the same time addressing the challenges societies across the world are facing in respect of cities, water, transport and industry.

Working alone, we cannot change the world. Working together with our clients, knowledge institutions, partners, stakeholders and communities, we are in the process of moving towards a better future for all. For more information, visit our website: 

In Africa Royal HaskoningDHV has a Level 3 Broad-based Black Economic Empowerment (B-BBEE) Status and employs in excess of 870 professionals. It offers strategic project expertise across the continent through offices in South Africa, Botswana, Zimbabwe Mozambique and Nigeria. In its latest rankings, Engineering News-Record (ENR) placed Royal HaskoningDHV in the top 10 in Africa.