Doha South Sewage Infrastructure (IDRIS)
Deep tunnel sewer, 16 km main trunk sewer in three segments, 11 shafts and seven lateral interceptor sewers of about 24 km in Qatar.
Operational
The record
- Country
- Qatar
- Location
- Doha
- Coordinates
- 25.200, 51.420
- Technology
- Deep tunnel sewer
- Capacity
- 16 km main trunk sewer in three segments, 11 shafts and seven lateral interceptor sewers of about 24 km
- Capital cost
- QR 2.05 bn total cost of the rescoped Doha South Sewage Infrastructure (Ashghal project page; start 2 August 2015), converted at QR 3.64 per US$ (World Bank official exchange rate, 2015 average). The 2015 IDRIS trunk-sewer awards of QR 3.212 bn (US$882 m, MEED) were suspended in July 2016 (MEED)
- Stage
- Operational
- Owner or client
- Ashghal (Public Works Authority)
- Contractor
- Bouygues Travaux Publics / UCC (joint venture); QTCG / MSF Engenharia (joint venture)
- 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
12 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.
- Main trunk sewer contracts worth about QR 3.2 billion, depths of 20 to 55 m, start Q3 2015 and completion Q4 2019. MEED, Qatar awards $880m of sewerage contracts. meed.com.
- The three main trunk sewer contracts of 2015 at QR 3.212 billion (US$882 million), to Bouygues Travaux Publics with UrbaCon and to Hochtief with Al Sraiya Strabag.
- MEED, Qatar suspends work on $2.7bn Idris project, 3 July 2016. meed.com.
- 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.
Ashghal halted work on the QR10 billion programme, affecting the QR3.2 billion trunk sewer contracts. The row now records the rescoped, completed Doha South Sewage Infrastructure from Ashghal's project page; the Jacobs and AECOM pages describe the original 45 km scheme. Bessac is named in no source read. The conversion rate and its source are given in the budget note.