Inner Doha Re-sewerage Implementation Strategy (IDRIS)
Deep tunnel sewer, 45 km main trunk sewer of 3.0 to 4.5 m internal diameter at 20 to 55 m depth, plus more than 70 km of lateral interceptor sewers, 26 deep shafts and a terminal pumping station in Qatar.
Operational
The record
- Country
- Qatar
- Location
- Doha
- Coordinates
- 25.200, 51.420
- Technology
- Deep tunnel sewer
- Capacity
- 45 km main trunk sewer of 3.0 to 4.5 m internal diameter at 20 to 55 m depth, plus more than 70 km of lateral interceptor sewers, 26 deep shafts and a terminal pumping station
- Capital cost
- US$882 million
- Stage
- Operational
- Owner or client
- Ashghal (Public Works Authority)
- Contractor
- Bouygues Travaux Publics and UrbaCon Trading and Contracting joint venture with Bessac; Idris SHP, a Hochtief and Al Sraiya Strabag joint venture, for the central segment
- Operator
- Ashghal
- Finance
- —
- Award or start year
- 2015
- Commissioned
- —
Record last checked 2026-09-18.
History
- 2015-08
Ashghal starts the Doha South Sewage Infrastructure works on 2 August
- 2015
Three main trunk sewer design and build contracts signed, together worth QR 3.212 billion
- 2019
Main trunk sewer named a Global Best Project in the water and wastewater category by Engineering News-Record
Sources
9 references
Every field in the record above is taken from the references below. A field that none of them confirms prints as a dash.
- Ashghal, The Inner Doha Re-sewerage Implementation Strategy (IDRIS) project page. ashghal.gov.qa.
- Doha South Sewage Infrastructure comprises a 16 km main trunk sewer in Eastern, Northern and Western segments, 11 shafts and seven lateral interceptor sewers of about 24 km, allowing more than twenty old pumping stations to be decommissioned.
- Ashghal, Doha South Sewage Infrastructure project details page. ashghal.gov.qa.
- Total cost QR 2,049,607,299, status complete, start date 2 August 2015, construction companies Bouygues Travaux Publics-UCC JV and QTCG-MSF Engheneria JV. Jacobs, Doha South Sewage Infrastructure Programme. jacobs.com.
- 45 km of main trunk sewer tunnels of 3 to 4.5 m internal diameter with 26 deep shafts, 70 km of micro-tunnelled lateral interceptors using over 250 shafts, a terminal pumping station described as one of the largest and deepest sewage pumping stations in the world, and a New Doha South works of 500,000 m3/day rising to 1 million m3/day, status complete.
- AECOM, Inner Doha Re-sewerage Implementation Scheme (IDRIS). aecom.com.
- 45 km of tunnels of 3.0 to 4.5 m internal diameter to a maximum depth of 60 m, with a deep pumping station in south west Doha.
- The Construction Index, Bouygues JV wins major Qatar sewer schemes. theconstructionindex.co.uk.
- MENA Water Review major projects register and PPP pipeline — compiled from procurer publications, development-bank project pages and trade reporting; each record names its source.
Main trunk sewer contracts worth about QR 3.2 billion, depths of 20 to 55 m, start Q3 2015 and completion Q4 2019. Budget converted from QR 3.212 billion at 3.64 riyals to the dollar.