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United Kingdom, London - uk/18


  Proposal for self-financed tolled second crossing of Thames put forward by London First, a business organisation. March 1999.Restricted procedure, deadline 19th April, 2004 to undertake preliminary design and feasibility studies, prepare a detailed design specification and contract documents and then, in the construction phase, act as the client's representative for the refurbishment contract or contracts on the existing 1.2 km Blackwall tunnel northbound. Works will include refurbishing and upgrading the tunnel services, including ventilation, control of mechanical services, tunnel lighting and communications systems, and works to the tunnel structure, including the walkway, lining and road surfacing. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=045743-2004, OJ S 53, or contact Transport for London, London, fax +44 2070279861. E-mail meeramajithia@streetmanagement.org.uk or johnnewham@streetmanagement.org.uk 14/04.Restricted procedure, deadline 3rd March, 2006 for refurbishment work of the A102 Blackwall tunnel northbound tube (1,360 m) in London, including mainly as follows: removal of cladding and replacement with a fireproof lining; lighting; communication; traffic control signals; drainage; fire and incident detection; fire main and hydrants; escape route signing; and PTZ and fixed cameras amongst others. The contract value is estimated at GBP40 million. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=019592-2006, OJ S 18, or contact Transport for London, London, fax +44 2076543773. E-mail lilianwong@streetmanagement.org.uk. Read E-News Weekly 4/2006. 06/06.Restricted call for tenders, deadline 7th September, 2007 for the 1.4 km Blackwall northbound tunnel refurbishment on motorway A102. This is a re-bid. Read E-News Weekly 33/2007. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=178762-2007, OJ S 144, or contact Transport for London, London, fax +44 2071261002. E-mail lilian.wong@tfl.gov.uk 34/07.Restricted call for tenders, deadline 30th September, 2008 for the 1.4 km Blackwall northbound tunnel refurbishment on motorway A102. This is a second re-bid. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=191658-2008, OJ S 143, or contact Transport for London, London, fax +44 2030542006. E-mail christopher.carroll@tlf.gov.uk 31/08.


Contract, value approx EUR56.3 million, for A102 Blackwall tunnel northbound refurbishment awarded under negotiated procedure to BAM Nuttall Ltd of Maidstone ME17 1AH, Kent, UK. More from Bill Egan at Transport for London, tel +44 8453051234, fax +44 2030542006. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=037779-2010. 06/10.


Flakt Woods, in conjunction with the M&E sub contractor VVB Engineering Services Ltd, has been awarded a EUR600,000 contract to supply the fans for the ventilation system for the contract to upgrade the 113 year old northbound bore of the 1364 m Blackwall tunnel in London. The Blackwall Tunnel runs underneath the River Thames, linking Tower Hamlets with Greenwich, and part of the A102 road. Work includes installing new ventilation fans in the tunnel's four shafts as well as new lighting, upgraded CCTV and new communications systems installed throughout the tunnel. The client, Transport for London(TfL) has also begun installing 26 safe areas or niches inside the tunnel, including emergency phones and fire extinguishers.Flakt Woods is providing 16 of their 160JMFTS vertically mounted smoke vent category: 400 degrees C for 2 hour type fans, as well as JM type axial fans.For more click here, here and uk/18. Visit www.flaktwoods.com/it and http://vvb-eng.com/business-sectors/roads-highways/blackwall-tunnel-northbound-refurbishment/. 31/11


United Kingdom, Ramsgate - uk/17

Road Tunnel Harbour Access

Contract awarded to Taylor Woodrow Construction/Perforex jv for 800 m tunnel through chalk cliffs using prevault system in which a slot is milled over the crown and pumped full of shotcrete prior to sequential excavation of the face. Partnership team combines the jv partners with Kent County Council, Brown & Root Civil, Halcrow, Taylor Woodrow Foundation Engineering and earthmover C A Blackwell. Safety Passport scheme in operation for underground workers. April 1998.  Successful breakthrough reported September, 1999. Claimed as a milestone in use of prevault method. October 1999.


United Kingdom, Workington - uk/16

Interceptor Sewer

North West Water $30 million design and construct contract awarded to AMEC Tunnelling for 2.02 km, 2.85 m diameter sewer in glacial alluvium containing clay and sandy deposits at maximum depth of 17 m using Lovat EPB and 350 m, 1.5 m diameter using Iseki Unclemole, and four shafts from 6 m to 9 m diameter and two branch connections. Bechtel Water Technology is consultant. February 1999.


United Kingdom, Portsmouth - uk/15

Sewage Transfer

Two drives totalling 8 km using two Lovat RME 131SE earth pressure balance machines with mixed face cutting heads capable of operating in open or EPB mode. First drive 4.2 km through predominantly chalky formations with flint content of 5% to 60%; dense calcareous sands, gravels and shelly beds; and very stiff clay with silty, sandy composition. Second drive 3.8 km through chalks with flint content of 5% to 14.4%. Both drives beneath water table at average depth of 21m. Nov 1998.  $40 million transfer tunnel nearly complete, with overall contract completion scheduled for January, 2001. At the mid point of the 8 km-long, 2.85 m i.d. tunnel two 7 m-diameter drive shafts lined with pre-cast concrete segments were sunk in chalk using the dry caisson technique and local dewatering. Reception shafts 25 m-deep x 6 m-diameter were sunk at Budds Farm by dry caisson in chalk with flints, and 35 m-deep x 6 m-diameter at Eastney by wet caisson in sands, silts and clays, and a 10 m-diameter pumping shaft has also been built at Eastney. Lovat 3.36 m RME131SE series 18900 EPB has completed and has been upsized and transferred to Cork ie/15, while sister machine series 18800 EPB has 200 m to go to breakthrough. Six-piece bolted, trapezoidal, segmental, steel fibre reinforced tunnel lining rings, nominally 1 m-long, supplied by Macrete of Northern Ireland. Visit engineering consultants www.halliburton.com, contractor www.edmund-nuttall.co.uk, segment supplier www.macrete.com and TBM supplier www.lovat.com August 2000.


United Kingdom, Hull - uk/14

Connector Sewer

  $82 million contract awarded by Yorkshire Water to Miller Civil Engineering and Birse Construction joint venture for 10.5 km tunnel, 3.6 m diameter and some 22 m deep with 10 shafts to connect sewers in west and east Hull passing beneath the river, the marina and the docks. Two new Lovat 4.24 m mixed-face TBMs will bore through alluvial sands, glacial clays and tills, silts, sands and gravels with groundwater pressures of 1.9 to 2.3 bar. Maximum cover 16 m and minimum radius 300 m. Three sections to be bored: 5.5 km, 3.33 km and 1.78 km. Machines powered at 672 kW and can run in open or closed mode. Six-piece 3.6 m i.d. segmental trapezoidal lining in rings of 1 m width. March 1998.   Ten 25 m-deep shafts constructed as jacked wet caissons using Charcon segments. Two identical Lovat mixed face EPBs delivered October, 1998. Bore diameter 4.24 m, maximum thrust 2,400 t with 672 kW cutterhead power through ten variable displacement hydraulic motors. Six-piece Charcon trapezoidal segmental lining in 1.0 m rings of 4.1 m outside diameter and 3.6 m internal diameter. Schoma locomotives and UMD rolling stock. Sept 1999.   Collapse of 15 m-long section of segmental lining occurred 150 m behind one of the TBMs in mid-November without injury or loss of life. January 2000.  Yorkshire Water has decided to recall its Lovat EPB Gloria to complete the final section of its stricken 10.6 km Humber wastewater tunnel at Hull in the north of England. Some 80% of the tunnelling had been successfully completed when a section of the 3.6 m i.d. segmentally-lined tunnel mysteriously collapsed some distance behind the face. Investigations are continuing into the cause of the incident, and there is presently no indication of anything other than a localised situation. The affected area has been stabilised using compressed air, and will be dug out and relined conventionally. A 22 m-deep retrieval shaft will be sunk 50 m ahead of the idle face, and TBM Gloria will drive towards it in an easterly direction from an existing launch shaft. Because the tunnelling was running three months ahead of schedule at the time of the incident, the original project deadline of November, 2000 is not affected. More at www.yorkshirewater.co.uk March 2000.Extensive ground investigation since the collapse has identified a layer of heavy peat at 40 m depth, some 18 m below the tunnel alignment, which may have caused the ground movement that resulted in failure of the non-bolted segmental concrete lining, trapping the TBM. The final 2km of the drive has since been completed by Miller Tunnelling using its second Lovat TBM. Work is proceeding to recover the trapped TBM. Visit www.millerconstruction.co.uk August 2000.


United Kingdom, Hastings - uk/13

Stormwater Relief

  Design and construct contract awarded to Miller Civil Engineering by Southern Water value $71 million. Herrenknecht 7.4 m Mixshield boring 1.6 km x 6.5 m i.d. storage tunnel at depths of 20 m to 60 m in ground conditions ranging from solid rock to running sand with high water pressures. 800 kW variable speed, bi-directional drive cutterhead. Built-in stone crusher behind cutter wheel. 6.6 m internal diameter precast concrete lining with seven gasketed segments and key. Annulus grouted systematically to minimise settlement. Possible hazards include methane, carbon dioxide and contaminated ground. Completion June, 2000. August 1998.  Herrenknecht Mixshield with VMT guidance system completed main drive mid-August, 1999. Best daily advance 21 m, or fourteen 1.5 m rings on two shifts. Fully-gasketed Charcon seven segment plus key lining with 7.36 m outside diameter. Erection time 15 min. Clayton locomotives and Wheel Sets rolling stock. Sept 1999.


United Kingdom, Ipswich - uk/12

Flood Relief Orwell

Anglian Water Services require 4.9 km tunnel at depths of between 20 m and 47 m through difficult ground including the Upper Chalk bed which is saturated at up to 2 bar and has flint bands, glacial materials and sarsen stones with compressive strength up to 150 MPa. £26 million contract awarded to AMEC Tunnelling who will use new Lovat RME115SE 2.44 m-diameter EPB with mixed-face cutterhead powered by six hydraulic motors rated at 263 kW. Six-segment gasketted trapezoidal lining supplied by Buchan. 20 m/day expected. 11 shafts to be sunk down to maximum 50 m depth. September 1998.


United Kingdom, Cardiff - uk/11


  $300 million scheme for Hyder Welsh Water comprising 2.6 km of 2.44 m-diameter tunnels, 3.5 km of 1.95 m, and 3.7 km of 1.6 m in waterbearing mudstone, siltstone and sandstone using Herrenknecht EPB for the large diameter and AVN 2000D and AVN 1600D pipejacked machines for the smaller diameters. 20 access shafts ranging in internal diameter from 6.1 m to 7.62 m with precast concrete linings supplied by Tarmac Charcon and a 20 m-diameter, 40 m-deep pumping station. Shaftwork commenced December, 1997. Partnering agreement involves Welsh Water, Hyder Consulting, Laing Civil Engineering, Van Oord, and Byzack, with the latter handling the tunnelling. Completion 1999. June 1998.


United States

United States, Maryland - us/133


Amtrak has achieved a major milestone for the Frederick Douglass Tunnel Program with the selection of a Kiewit/J.F. Shea Joint Venture to build the brand new rail tunnel that will serve electrified Amtrak and MARC commuter trains. Located just south of Baltimore Penn Station, the new tunnel will serve electrified passenger trains with two parallel, single-track tunnel tubes, each approximately 3.22 km (2 miles) long. It will also support much faster travel speeds than the existing tunnel, where trains are currently limited to maximum speeds of 30 mph due to the tight curves.

The Frederick Douglass Tunnel will replace Amtrak’s existing Baltimore and Potomac (B&P) tunnel, which opened 150 years ago during the Ulysses S. Grant Administration

The third and final construction contract to “fit out” the Frederick Douglass Tunnel with tracks, rail systems and more will be announced at a future date, with an anticipated award in 2025/2026. Amtrak will also soon select a Delivery Partner to coordinate and support the successful execution of the Program.

Construction of the new tunnel is being delivered through the innovative Construction Manager At-Risk (CMAR) delivery method, which improves project delivery time and allows design, pre-construction and other work to proceed simultaneously. Visit https://media.amtrak.com/2024/02/amtrak-awards-contract-to-build-new-frederick-douglass-tunnel-in-baltimore/. 06/24.


United States, Maryland - us/132


The joint venture Skanska/Fay Construction Co signed a contract with CSX Transportation for the  modernization of the Howard Street Tunnel (HST), originally constructed in 1895 and part of the HST Project in Baltimore, Maryland, USA. The Howard Street Tunnel Project will improve clearance at the Howard Street Tunnel (HST) in Baltimore City and 22 other locations where obstructions exist along the CSX Transportation (CSX) Interstate 95 (I-95) rail corridor between Baltimore and Philadelphia.  

The modernization of the Howard Street tunnel consists of vertical clearance improvements to allow double-stack trains (trains transporting shipping containers stacked on top of each other) to travel between Baltimore, Maryland and Philadelphia, Pennsylvania. Work includes lowering and tunnel enlargement techniques across the 2.7-km (1.7-mile) expanse of the Howard Street Tunnel to increase the tunnel height from 5.8 to 6.4 m (19 to 21 feet). Additionally, drainage improvements will be made throughout the track. Visit
https://www.csx.com/, www.skanska.com and https://www.shikunusa.com/. 51/23.