Zueblin Australia of Perth has been awarded two major contracts, value EUR365 million, as part of the STEP project by Abu Dhabi Sewerage Services Company. Contract 1 is for the 35.7 km-long Link Sewer network, with diameters ranging from 200 mm to 2.8 m, and 247 manhole shafts of depths 8-20 m. Contract 2 comprises a 15.4 km-long sewer network with 95 manholes of up to 26 m-depth. Pipejacking is the favoured method. Contract duration is 39 months. For project description and history visit tunnelbuilder archive ae/16, and for contractor profile visit www.zueblin-international.com. More from Erhan Oguz or Stefan Nalbach in Perth, tel +61 (0)893259399, e-mail erhan.oguz@zueblin-international.com. 03/12.

Abu Dhabi Sewerage Services Company (ADSSC) awarded to Impregilo the USD200 million T-03 contract for the third and final lot of the Strategic Tunnel Enhancement Programme (STEP), a 40 km-long hydraulic tunnel in Abu Dhabi. Using gravity, the tunnel will collect wastewater and convey it to a treatment plant in Al Wathba. Under the new contract, Impregilo is to construct 10 km of the hydraulic tunnel, with a 7 m-diameter excavated section, four access shafts to depths between 60 and 80 m, and the links to the main tunnel.

For the first time in Abu Dhabi two TBM EPB for pressures up to 8 bars, will bore and simultaneously line the tunnel with prefabricated concrete segments.

The hydraulic tunnel and the access shafts will be lined with a special membrane to ensure the concrete structures are fully protected from the aggressive environment, for a minimum term of one hundred years. Click ae/16 for tunnelbuilder archive. Visit www.impregilo.it. 49/10.

Samsung C&T Engineering & Construction Group signed the T-01 contract with Abu Dhabi Sewerage Services Company worth USD270 million for the construction of Deep Tunnel Sewerage System (DTSS) in Abu Dhabi. Samsung C&T will design and build 16 km portion of a 41 km DTSS as well as four operating shafts and 3 access shafts. Click ae/16 for tunnelbuilder archive. Visit http://www.secc.co.kr/eng/html/pr/press_view.asp. 08/11.

Preliminary work for the construction of a traffic diversion route system has begun at the entrance of Abu Dhabi to pave the way for three years of construction work that involves the 3.1 km Al Salam tunnel, which is set to be the longest road tunnel in the Middle East. A joint venture of South Korea-based Samsung Engineering and Abu Dhabi-based Saif Bin Darwish has won the contract for the main construction works. The tunnel will run 15 metres underground below Al Salam Street from Abu Dhabi's northeast entrance to near Port Zayed and other coastal areas in the southern part of the city. The tunnel box structure width is 45 m, the width of roadway in each direction (four lanes, shoulders and walkways) is 20.6 m and the height from top of road to ceiling is about 6 m. The tunnel is expected to divert a significant amount of traffic from the congested city centre. The tunnel will include state-of-the-art safety and management system. The system will coordinate ventilation, fire detection and suppression, lighting, public address, environmental management, electrical power supply, emergency broadcasting, radio re-broadcasting, security and surveillance, traffic detection and control, and traveller information. The tunnel safety and management system will be monitored and controlled by the personnel at the southern and northern portals of the tunnel. Fibre optic links to the Abu Dhabi municipality traffic control centre will allow the centre's operators to control tunnel operations in case of emergencies and communications failure at the local tunnel control rooms. The tunnel is expected to be finished in 2011. View computer renderings of the project here. Visit www.samsungengineering.co.kr/eng/main.jsp or www.secc.co.kr/e_secc/index.asp The client, Abu Dhabi municipality, has set aside AED3 billion for the project, which also includes construction of a 500 m flyover connecting the city to the 900-hectare Al Reem Island, around 500 metres off the coast, which is undergoing massive development and is expected to be inhabited with more than 200,000 people within five years. The Al Salam tunnel from Al Mina Road intersection to Al Falah Street intersection will be the longest among the four tunnels in a 13.7 km project, costing AED4.6 billion, which started in November 2007 and will be carried out in three phases. Construction of the second major tunnel, 1.5 km in length, is in progress. The tunnel will connect from Al Reem Island intersection and Sea Palace intersection, and will also support uninterrupted traffic flow. Two more tunnels have been planned at Khalifa Park.In January, Abu Dhabi revealed a major master plan involving the construction of an advanced transport system within its long-term development plan that also involves the expansion and extension of the city itself. It includes the construction of more than 20 tunnels in the capital and the new part of the city, which will house government offices, another town centre, houses, shopping malls and other facilities. 32-33/08.

The EUR965 million road project through Abu Dhabi, which incorporates the 3.1 km-long Al Salam tunnel, should be completed by end-2011 according to Samsung Construction. For full background information on this project visit tunnelbuilder archive ae/15 and for current bids visit www.emiratestenders.com. 13/11.

Tenders will be invited in the next two months for the Dubai mass transit project. The project will comprise of a 72 km track, from the American University in Jebel Ali to the edge of the emirate at Salahuddin Road, and from the Dubai Festival City to the vicinity of central Dubai. The project involves construction of two separate lines, the Green Line and the Red Line. The entire project is expected to cost around Dh8 billion. About 30% would be underground and 70% on elevated tracks. The underground section will run in the city centre. There would be a total of 55 stations across Dubai, each one to 3 km distant. The trains would be automated and driverless. The project will be complete and operational by 2010. Read E-News Weekly 50/2003. 06/04.French consultancy Systra will carry out the initial plans for the Dubai driverless metro system. Tenders for construction of the proposed USD3.92 billion project will be invited in May or June. Construction to start by October 2005. The system will comprise two lines, a 50 km Red Line with 35 stations (first phase) and a 19.2 km Green Line serving 22 stations (second phase). The Red Line is estimated at USD2.33 billion. Completion expected by 2009 for first phase and 2012 for second phase. The system will include 18 km of tunnels. Read E-News Weekly 50/2003. Visit www.systra.com 13/04.The Dubai municipality invites companies to prequalify, deadline 1st June, 2004 for the final design and construction of the Dubai light rail project, which consists of two lines of around 70 km, out of which 30% is underground. The remaining portions are elevated. The municipality hopes to award a single turnkey contract. Tender documents should be released in early August. Visit http://vgn.dm.gov.ae/DMEGOV/dm-mp-train-project or contact wmmustafa@dm.gov.ae for technical enquiries and ssqaiwani@dm.gov.ae for contractual enquiries. Subscribe to E-News Weekly 50/2003. 20/04.The Dubai municipality in the United Arab Emirates has extended the final bid submission deadline for its AED12.5 billion light rail transit (LRT) project by one month, from 31st January to 28th February, 2005. After evaluation, the final contract is expected to be awarded in May 2005. The five consortia selected to bid for the project are: Bilfinger Berger, Taisei, Besix and Alstom; Vinci, Hochtief, CCIC of the UAE and Ansaldo; Obayashi, Yapi Merkesi (Turkey) and Mitsubishi; consortium Metro One, which includes Odebrecht, Arab-tec of the UAE, Guris (Turkey), Ghella of Italy, PARsons and Bombardier; and finally the Bin Laden Group of Saudi Arabia, Dywidag and Siemens. All the bidders are negotiating with leading local and international banks to finance the bids. The Dubai municipality will provide only 10% of the project value to the winning consortium. The first round of bids, which involved rail systems and signalling, were submitted on 1st November, 2004.Phase I of the 72 km project includes the entire Green Line from Dubai Airport Free Zone to Dubai Healthcare City, covering the major locations in downtown Dubai, as well as part of the Red Line from Rashidiya to Dubai Marina. Phase I covers 43 km of which about 3.5 km will be underground. Phase II runs from the American University (near Dubai Marina) to Jebel Ali port, covering 29 km. 53/04-01/05.A Dh6.285 billion bid from the Mitsubishi-led Dubai Rapid Link consortium, including Obayashi and Yapi Merkesi, is the lowest offer made for the first phase of the Dubai light rail project. The Metro One consortium led by Bombardier, involving also Odebrecht, Arab-tec of the UAE, Guris, Ghella and Parsons, submitted the highest bid, at Dh10 billion. The difference between the lowest and highest bids was approximately over Dh4billion. The Dubai Star consortium led by Bilfinger Berger and comprising Taisei, Besix, Orascom and local group Al Habtoor, quoted Dh8.854 billion. Finally, the Salsabeel consortium, which includes the Saudi Bin Laden Group as group leader, Siemens, Dywidag and the Chinese Citic Group, quoted Dh8.922 billion. The winner of the first phase of the DLR project will be announced in a few weeks. Works could begin as early as May 2005. 10/05.The Dubai municipality awarded a USD3.3 billion contract to the Dubai Rapid Link (DURL) consortium led by Mitsubishi Heavy Industries, including Obayashi, Kajima and Yapi Merkezi of Turkey, to build a fully automated driverless metro network that will consist of two lines and 44 trains covering the main locations across Dubai and will feature elevated and underground sections. DURL also clinched a USD512 million contract to carry out maintenance of the project for 15 years. The first phase of the project comprises a 52.1 km east-west Red Line and 35 stations between Salahuddin Road to the American University of Dubai through Burjuman and Sheikh Zayed Road, and will progressively be extended to Jebel Ali Port in the south and the intersection of Al Nahda and Damascus roads through Al Qiyadah intersection in the north. The 17.6 km Green Line and 20 stations runs from Al Ittihad Square to Rashidiya bus station through Deira City Centre and the Airport Terminals 1 and 3, and will progressively be extended to serve the Deira and Bur Dubai central areas and souks up to Burjuman and Wafi shopping centres. There are two stations at Al Ittihad Square and Burjuman where the lines will intersect. The two lines will run underground in the city centre from the intersection of Sheikh Rashid and Sheikh Khalifa Bin Zayed roads to just before the intersection of Salahuddin and Abu Bakr Al Siddique roads for the Red Line and from Garhoud to Oud Metha Road for the Green Line. In total, the Metro System will include 55 stations, 18 km of tunnels, 51 km of viaduct Construction is scheduled to start in July. The red line will take 49 months to complete, while the green line will take 35 months. Work on the green line will begin 20 months after the red line's construction starts. The red line is expected to be inaugurated in September 2009. Visit http://vgn.dm.gov.ae/DMEGOV/dm-mp-metro 23/05.Geoconsult's Singapore office received a contract for overseeing tunnelling work on the Dubai metro after being appointed by the Dubai Rapid Link Consortium, whose members include Japanese companies Obayashi and Kajima, as well as the Turkish Yapi Merkezi and Capita Symonds from the UK. Atkins has also been drafted in as an advisor. Visit www.geoconsult.at and www.atkins.comThe first phase of the Metro project will be the 52.1 km Red Line running between Rashidiya and the industrial zone of Jebel Ali. The second phase will run 17.6 km from the airport, through the city centre on both sides of the Creek. There will be over 11 km of TBM-bored tunnels on both lines, with most of the excavation work taking place underneath the Creek, and between Union Square and Rashidiya. Atkins has also been drafted in as an advisor. 12/06.The Japanese-Turkish Metro JV (JTMJV) has appointed Atkins as design programme manager and detailed designer for its design-and-build contract covering phase 1 of the Dubai transit system. JTMJV comprises Obayashi, Kajima and Yapi Merkezi and, together with Mitsubishi Heavy Industries (MHI), forms the Dubai Rapid Link consortium (DuRL). The JV engaged Atkins as lead consultant for all works comprising the phase one Red Line, including 26 stations (four underground), 53 km of viaducts and tunnelling and all associated infrastructure and building works. The Red Line forms the first phase of the awaited Dh15.5 billion Dubai metro project and is expected to be ready by September 2009. Visit www.atkinsglobal.com 28/06.

Sirius has varied its existing mineral transport system (MTS) tunnelling contract with Strabag to include engineering, procurement and construction of the conveyor system, the maintenance railway, electrical and communications infrastructure. The MTS fit-out scope includes the fit-out of; the MTS conveyor, the maintenance railway, electrical and communications infrastructure, and all other services in the tunnel essential to the operation of the MTS.

Mineral transport system

The MTS will carry the Company's mined polyhalite from 360 meters underground at the Woodsmith mine site to the materials handling facility at Wilton, Teesside, on a 37km underground conveyor system.  The tunnel will be constructed by three tunnel boring machines.  The conveyor system in the MTS will be designed to handle 20 Mtpa of throughput.  The tunnel will also contain maintenance rail and services, including a 66kV power feeder from Wilton International industrial complex.

Portal construction at Wilton for the first TBM remains on track for completion in 2018 with TBM delivery expected early 2019. 

For further information click here and for tunnelbuilder archive click uk/97. Visit https://siriusminerals.com. 46/18.

For further information, please contact:

Sirius Minerals Plc

Investor Relations

Jennifer Wyllie, Tristan Pottas

Email: ir@siriusminerals.com

Tel: +44 845 524 0247

Media enquiries

Edelman

Alex Simmons, Ed Brown

Email: Siriusminerals@edelman.com

Competitive procedure with negotiation, deadline 24/02/2020, for maintenance and management contract for Transport for London (TfL) Road Tunnels and Pumping Stations. The tunnels in scope under this contract are A102 Blackwall, A101 Rotherhithe, A12 Green Man,  A12 George Green,  A12 Eastway, A3211 Upper Thames Street,  A2 Eltham Tunnel, A406 Fore Street, A40 Hangar Lane. The below tunnels are currently part of a design, build, finance, operate (DBFO) agreement which expires in 2030. The contract to which this contract notice relates also includes in scope some restricted responsibilities on the below 2 tunnels, as described in the procurement documents: A1203 Limehouse Link, A1261 East India Dock. Due to the optional extension of up to 4 years, the contract includes a right for TfL to require the provision of works, services and/or supplies to which this contract notice relates to the 2 tunnels above, upon expiry of the DBFO agreement in 2030. The contract also includes in scope, a right for TfL to require the provision of works, services and/or supplies to which this contract notice relates, in whole or in part on Silvertown tunnel upon opening in 2025 (earliest). Value contract EUR 237,06 million (GBP200 million), excluding VAT. Duration contract from 01/04/2021 to 31/03/2033. For bid documents https://procontract.due-north.com/ . Contact TfL,  attn Daniel Farley, London, email DanielFarley@tfl.gov.uk, tel +44 2071264583. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=033763-2020.

Ref.n. tfl_scp_001746b. 04/20.

Scottish Water is shortly expected to announce a joint venture of Costain and Vinci as preferred bidder to design and build a 3-mile long sewer tunnel in Glasgow. The 4.5 m-diameter Shieldhall tunnel in Glasgow will be driven at depths of between 10m to 30m and will run through an area of old mine workings, raising potential technical problems. The old workings will be grout filled before tunnelling can start. The Costain/Vinci team will excavate six shafts for the tunnel drive, which is expected to advance at 10 m/day. They will then need to connect the tunnel at both ends to the existing sewer network. The wastewater tunnel in the south of Glasgow forms part of the biggest upgrade of the city’s waste water network in more than a century and will run between Queen’s Park and Craigton Industrial Estate via Pollok Park and Bellahouston Park. For further information click here and uk/78. Visit https://www.competefor.com/blog/costainvinci-team-wins-100m-glasgow-sewer-job/. 30/14.

HS2 Ltd modified the C2 and C3 main works civils contracts (MWCC) awarded on 1 September 2017 for the London to Birmingham high speed rail line, HS2 First Phase.

The addition of two new partners Ferrovial Agroman Ltd (UK)  and Bam Nuttall Ltd to the existing Joint Venture of Eiffage Genie Civil and Kier Infrastructure and Overseas Ltd has been required due to the insolvency of previous joint venture partner Carillion Construction Ltd.

The C2 - North Portal Chiltern Tunnels to Brackley contract (Lot 4) value is EUR1.68 bn (GBP1.49 bn), excluding VAT.  The C3 -Brackley to South Portal of Long Itchington Wood Green Tunnel (Lot 5)  value is EUR1.12 bn (GBP994 million), excluding VAT. Contact High Speed Two (HS2) Ltd, Birmingham, email MWCCProcurementTeam@hs2.org.uk . For further tender information please click here .11/20.

Restricted call for bids, deadline 26th November, 2007 for detailed ground investigation of the superficial deposits and bedrock below the River Forth between between South Queensferry and Rosyth. The ground investigation will address one of the following options: tunnel (90 to 120 exploratory holes to depths of 60 m to 70 m below river bed level), immersed tube (90 to 100 exploratory holes to depths of 30 m to 40 m below river bed level) and bridge (15 to 20 exploratory holes to depths of 20 m to 50 m below river bed level). Read E-News Weekly 41/2006, 39/2005, 13/2005 & 7/2005. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=253772-2007, OJ S 209, or contact The Scottish Ministers, Glasgow, fax +44 1412727560. E-mail hazel.tierney@scotland.gsi.gov.uk 45/07.Glover Site Investigations scooped a GBP2.1 million contract to carry out detailed ground investigation of the superficial deposits and bedrock below the River Forth between between South Queensferry and Rosyth, as part of a proposed tunnel (bored or immersed) or bridge. Visit www.glover-si.com 25/08.Due to a change in the scope of the works, the awarding procedure on the construction work for the South Queensferry-Rosyth road tunnel has been discontinued and republication may become necessary. Contact robert.mcculloch@feta.gov.uk tel +44 131 319 1699. 44/08.

Negotiated procedure, deadline 10th September, 2007 to provide programme management services to support the planning, design and construction of the Thames Tideway tunnel. The programme management service will support Thames Water's management of physical, timeplan and cost issues and where appropriate, provide additional technical expertise to assist with the management of the design and delivery of the project. The Tideway tunnel is a large diameter, major sewer interception scheme in London, which will collect flows from 35 combined sewer overflows (CSO) which discharge into the River Thames. Over 30 km of approximately 7.2 m-diameter tunnel will be constructed, 35 CSOs will be connected to the tunnel and a terminal pumping station will transfer flows to treatment at Beckton sewage treatment plant. Construction is expected to commence in 2009 and complete by 2020. Read E-News Weekly 25/2007, 13/2007, 47/2006, 2/2006 & 17/2004. Click here. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=187264-2007, OJ S 150, or contact Thames Water, Reading, fax +44 1189237687. E-mail Procurement.Support.Centre@thameswater.co.uk 33/07.Negotiated call for tenders, deadline 12th January, 2007 for Phase 1 of the Thames tideway tunnel, which consists mainly of the 6.9 km 7 m ID Lee tunnel. Click here. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=297584-2007, OJ S 244, or contact Thames Water Utilities Ltd, Reading, fax +44 1189237687. E-mail procurement.support.centre@thameswater.co.uk 52/07-01/08.Notice of prequalification, with indefinite duration, for ground investigation works (lot 29) for the Thames tideway tunnel. The ground investigation will be undertaken in a number of phases along the proposed tunnel route between Hammersmith (West London) and Beckton (East London), primarily to assist in the modelling of geological, geotechnical and groundwater conditions. Typical borehole depths will be in the region of 50 to 100 m. The Phase 1 works have been provisionally identified as consisting of a total 140 boreholes. Click here. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=20655-2008, OJ S 16, or contact Thames Water Utilities, Reading, fax +44 1189237687. E-mail procurement.support.centre@thameswater.co.uk 05/08.Thames Water has appointed CH2M HILL as programme manager for the Thames tideway tunnel scheme that will prevent overflows from London's sewers entering the Thames. As programme manager, CH2M HILL will help Thames Water to implement the project through all phases, including planning consents, preliminary and final design, construction oversight, stakeholder communication, commissioning and start-up of new facilities. Click here. Visit www.ch2mhill.comThe Thames tideway tunnel project will involve the construction of London's deepest ever tunnel - the Thames tunnel - up to 80 metres beneath ground level, and spanning 32 kilometres beneath the river from Hammersmith in West London to Beckton, in East London. An additional tunnel - the Lee tunnel (7 km) - will run from Abbey Mills in Stratford to Beckton. The tunnels will capture and transfer sewer discharges for treatment, which would otherwise enter the Thames and its tributaries during heavy rainfall. Both tunnels will be more than seven metres wide, running beneath a vast network of existing tunnels, including six subway lines and utilities. The overall programme includes constructing numerous collection and diversion facilities, a large high-head underground pumping station, and a major upgrade at Beckton sewage treatment works. Construction of the Lee tunnel - for which tenders have already been invited - is expected to start in 2009. Click here. The tunnel is due for completion by 2014. Construction of the Thames tunnel, which will prevent discharges from 35 overflow points, is not expected to start until 2012 with completion in 2020. 13/08.Heath Lambert Ltd of Houndsditch, London has been awarded the EUR20 million contract for insurance brokerage for the Thames Tideway project which includes the 32.2 km-long, 7 m-diameter Thames tunnel from Hammersmith to Beckton and the 6.9 km-long Lee tunnel from Stratford to Beckton. Tunnelling is expected to start this year for completion by 2020. The company will work with Thames Water in the design, implementation, maintenance and servicing of its risk management and insurance programme for the project, and will represent Thames Water in the commercial insurance marketplace to obtain best value. More from procurement.support.centre@thameswater.co.uk or contact Matthew Bates at Heath Lambert, tel +44 20 7234 4670, e-mail mbates@heathlambert.com. http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=3244-2009 02/09.

Periodic indicative notice to provide information to the market about the potential procurement and obtaining market feedback prior to the start of formal procurement for proposed Thames tideway tunnel, which consists mainly of a 25 km-long, 7.2 m-diameter tunnel following the River Thames with shafts up to 80 m-deep and utilising six TBMs. Contact The Supply Chain Manager at Thames Water Utilities Ltd, Paddington, London, tel +44 2031477700, e-mail procurement@tidewaytunnels.co.uk before 23.11.2012. Scheduled date for start of award procedures 15.03.2013. For project background visit tunnelbuilder archive uk/54. For more information on this notice, visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=352570-2012. 45/12.

Negotiated call for tenders, deadline 15th March, 2007 for design and build of various high voltage cable and high pressure gas pipeline tunnels within the South East of England. A number of feasibility studies have been commissioned to provide specific information once they have been finalised. This information will then be provided within the tender documentation and issued to the qualified respondents to this tender. For guidance, the National Grid’s previous high voltage cable tunnels have been constructed using precast concrete segments and were of approx. three metres of diameter and the gas pipe tunnels have used auger boring, pipejacking, etc., to accommodate maximum pipe diameter of 1,220 mm. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=34204-2007, OJ S 28, or contact National Grid, Warwick, fax +44 1926656601. E-mail ernie.savage@uk.ngrid.com 08/07.Costain, Murphy and Morgan Est are the three firms working up bids for a tender return in September for a GBP600 million scheme to build four cable tunnels in London for National Grid. National Grid is planning to start building the 4 m-diameter tunnels next year. The first part of the deal is worth about GBP473 million and will involve boring 27.5 km of tunnel in two sections - including a continuous tunnel of 20 km - from Hackney in the east to Willesden in the west, due to be completed in 2015. The winning team will also be responsible for a 7.1 km stretch between Hurst and Eltham in southeast London, which will be finished by 2014. A fourth tunnel, which runs for 7.4 km between Wimbledon and Kensal Green in southwest London, is being tendered separately and construction will run from late 2009 to 2016. This package will carry a price tag of about GBP127 million. All the tunnels will house 400 kV cables that will feed into National Grid's substations in Hackney, St John's Wood, Wimbledon, Willesden, Hurst and Eltham. The total construction time for all four tunnels will be six years, starting on the Hurst to Eltham route in spring 2009 and completing the Wimbledon to Kensal Green route in 2016. The project will see tunnels sunk to an average depth of between 12 and 60 m, including one stretch below the River Thames. Click here to see a route map. 34-35/08.