Dams & Hydro

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Dams & Hydro

Our Dams & Hydro division is internationally recognised as a leading proponent of RCC dam technology and most specifically RCC arches. Our team has been involved in projects across five continents, with dam heights ranging from 5 to 280m. ARQ has been responsible for more than 7 million m³ of RCC placed to date.

We have also been involved in a number of hydropower projects in Central Africa and Central America on schemes ranging in capacity from 0.5 to 1 200 MW. We offer a comprehensive range of services from pre-feasibility, through specialist design and analysis, to construction supervision and safety inspections.

Our innovative solutions to increase dam capacity and to realise cost savings have established the firm as a technological leader within the industry. Over the past decade we have acted as expert reviewers in the field of dams for the World Bank, the SA Department of Water Affairs and several other major clients.

ARQ has also provided consulting services to South Africa’s electricity utility ESKOM.

Click here to view the ARQ Dams Profile document.

The CESA Engineering Excellence Awards

The CESA engineering Excellence Awards take place this evening in Midrand and ARQ staff attending. The awards will be broadcast on the youtube link below. ARQ is honored that Yusufeli Dam is nominated for the prize category of best international project. Good luck to all the finalists. In the category of Best International Projects the finalists […]

ARQ DELEGATES AT ICOLD 2023 SWEDEN

Dr. Quentin Shaw Vice President of ICOLD – AFRICA and Henry-John Wright, newly elected Chairman of SANCOLD – SOUTH AFRICA representing ARQ Consulting Engineers at ICOLD 2023 in Sweden. ARQ Consulting Engineers is also celebrating their 3oth Year as International Civil Consulting Engineers in 2023.

Reservoir impoundment of the Yusufeli Dam

The reservoir impoundment of the Yusufeli Dam has commenced in November 2022. ARQ is undertaking an impoundment safety study which comprises comparing the progressive behaviour of the dam and foundation during filling, to the anticipated behaviour as modelled by the results of FE analyses.

SANCOLD 2022 ANNUAL CONFERENCE – Evolving Dams in a Climate of Change

Foreword From the Chairperson of the South African National Committee on Large Dams(SANCOLD) On behalf of SANCOLD, I am pleased to welcome you all to the 2022 Annual Conference at TheRadisson Convention Centre, OR Tambo. We are very happy to have the opportunity to host this eventand to facilitate discussion and the exchange of knowledge […]

SUB-HORIZONTAL JOINTING CRITICAL IN FOUNDATION STABILITY

By Michelle Blaeser – ARQ Dams at the SANCOLD 2022 ANNUAL CONFERENCE – Whereas design foundation criteria call for minimum values of various parameters including the Rock Mass Rating, RMR, Uniaxial Compressive Strength, UCS, weathering etc., sliding on potential sub-horizontal joint planes in the foundation was established to be the critical failure mode at Ntsonyini […]