Washington - us/94SeattleWastewater The lowest bidder for the 35.4 km (22 mile) Brightwater conveyance system, east contract in north King and south Snohomish County is the Kenny / Shea / Traylor JV with a bid price of USD130,648,750. The followers are the Jay Dee / Coluccio JV (USD144,765,000), the Impregilo / Healy JV (USD151,683,000), Obayashi (USD152,500,000), the Kiewit / Bilfinger Berger JV (USD174,224,000) and the Vinci / Parsons RCI / Frontier-Kemper JV (USD188,740,000). The contract is for digging one section of a 20.1 km (13 mile) tunnel from the future plant to Puget Sound. It will include a 4,270 m-long (14,000 foot) 5.5 m-diameter (18 foot) tunnel from the North Creek Business Park in Bothell to the plant site north of Woodinville next to State Route 9, two deep shafts for launching and removing the TBM, installing four pipes in the tunnel ranging from 68.6 cm (27 inches) to 213 cm (84 inches) in diameter and fibre-optic cables. The tunnel will be filled with concrete after those installations. In addition, the contractor will dig a smaller 732 m-long (2,400 foot) 1.83 m-diameter tunnel from the North Creek tunnel portal to the existing North Creek pump station and excavate a smaller shaft for a new Brightwater pump station. The project is scheduled to begin in early 2006. After tunnelling is completed, another contractor will build a pump station for sending wastewater to the Brightwater plant.King County will advertise two more tunnelling contracts in 2006. Total construction cost for the wastewater conveyance system is an estimated USD705 million. More in E-News Weekly 44/2005. Visit http://dnr.metrokc.gov/wtd/brightwater and www.ecy.wa.gov 44/05.King County has awarded its first contract for the USD1.5 billion Brightwater wastewater treatment plant. The Kenny Construction / J.F. Shea / Traylor JV has received a USD131 million contract to build the eastern segment of the plant's sewer line system. The 4,270 m-long tunnel will extend from the North Creek Business Park in Bothell to the plant site at Highways 9 and 522 north of Woodinville. Construction is to begin in spring. A TBM will be used to create a tunnel about 5.5 m in diameter at depths of up to 80 m below the surface. The work will include excavating a 22.5 m-deep shaft that will be used to launch the TBM, installing four pipes in the tunnel ranging from 68 cm to 2.1 in diameter, and installing three fibre-optic cables for monitors. Click us/94. Read E-News Weekly 44/2005. Visit www.kennyconstruction.com, http://jfshea.com and www.traylor.com 02/06.The Kenny / Shea / Traylor JV has purchased a 5.8 m-diameter Lovat EPB TBM to be delivered in June 2007 to build a 4.3 km portion of King County's 23 km Brightwater tunnel from North Creek to the Brightwater treatment plant. The TBM RME229SE will be mixed-face with a dressing of 32 ripper teeth, interchangeable with 12" twin tip disc cutters. The cutting head will be powered by four 300 kW hydraulic drive motors which will provide the cutting head with 2,900 to 6,500 kNm of torque from 1.8 rpm to 4 rpm. The machine will have a maximum propulsion thrust of 4,100 tonnes at 340 bar and a stroke of 2.3 metres. Operating at up to 3 bar, the TBM will feature a two-stage 91 cm-diametre screw conveyor.The project involves construction of two 25 m shafts (for TBM launching and retrieval) and a 5.1 metre ID tunnel comprised of rings of prefabricated reinforced concrete segments (4 pieces + 2 keys per ring). The tunnel alignment will range from a depth of 12 to 82 metres and have water levels above the tunnel invert ranging from 9 to 32 metres. The TBM is expected to encounter sedimentary deposits comprised of fine to medium sands with organic silts, coarse sands and gravel with some clays and scattered boulders. Visit www.lovat.com 30/06.Invitation to tender, deadline 21st September, 2006 for the USD105.4 million west tunnel of the Brightwater conveyance system (section 4), which consists of the construction of approx. 6,430 metres of 3.96 m minimum diameter segment lined tunnel, 762 metres of which is secondarily lined to a 3.05 m minimum diameter, 165 metres of 1.52 m microtunnelled effluent sewer, and one portal structure 15.2 m deep for launching a TBM. Also in the contract is the construction of a sampling facility. Visit www.metrokc.gov/procurement/rfpdocs/2006/July/Construction/C00007C06/C00007C06.pdf or contact King County, tel. +1 2062633735, fax +1 2066841486, e-mail crystal.graham@metrokc.gov 36/06.French construction and concessions group Vinci Construction Grands Projets, in JV with Parsons RCI (20%) and Frontier-Kemper Constructors (20%), has won a USD209.7 million contract from King County to build two tunnels in south Snohomish and north King counties in the US state of Washington. The tunnels are part of the central portion of the 26 km Brightwater conveyance tunnel, the region's largest clean water project in 40 years. The scope of work on the central tunnel contract includes building two tunnels, one from Kenmore to the North Creek Business Park in Bothell and another from Kenmore to Ballinger Way Northeast in Shoreline. The combined length of the tunnels is about 9.6 km. The joint venture, based in Montreal, will dig up one 6.1 km-long tunnel and another 3.6 km, which will both connect a wastewater management centre north of Seattle. Visit www.vinci.com, www.parsons.com or www.rci-group.com and www.frontier-kemper.comConstruction of the 4.27 m-diameter tunnels, which will be lined with prefabricated concrete segments, begins 28th August, 2006 and will last 51 months. Crews will use two 5.3 m OD slurry TBMs and will also excavate two deep shafts of 28 m and 63 m deep - one near the intersection of 80th Avenue Northeast and Northeast 192nd Street in Kenmore, and another along Ballinger Way Northeast in Shoreline - to launch and remove the TBMs. Pressures will reach up to 7 bars.The contractor will install six pipes in the tunnel ranging from 36 cm to 3.2 m in diameter along with two fibre optic cables to monitor Brightwater facilities. Portions of the tunnel around the pipes will be filled with concrete after those installations.In addition, the contractor will trench a smaller 1,036 m-long pipeline from the Kenmore portal to connect the new Brightwater pipes to the existing local sewer system using a combination of open cut and approx. 500 metres of microtunnel construction. Construction on the central tunnel is scheduled to be completed in 2010.The county has already selected Jacobs Civil to provide construction management services for the conveyance facilities. MWH/Jacobs Associates is designing the system as a joint venture and CDM is providing geotechnical work as part of tunnel design. Visit www.jacobs.com, www.mwhglobal.com, www.jacobssf.com and www.cdm.com 36/06.The east segment of the Brightwater tunnel construction, from North Creek to the treatment plant site on State Route 9, has been awarded to a joint venture of Kenny, J. F. Shea and Traylor. The contract includes approx. 4.27 km of 4.89 m ID tunnel containing four pipes and three fibre optic cables, construction of launch and receiving shafts, pump station excavation and shoring, and 731 m of microtunnel. Click us/94. Read E-News Weekly 44/2005. Visit http://dnr.metrokc.gov/wtd/brightwater/contracts/conveycontracts.htm 36/06.Three firms submitted bids for contract C00007C06 for the west segment of the 20.9 km USD1.62 billion Brightwater conveyance system. The apparent low bid submitted by joint venture Jay Dee/Coluccio/Taisei was USD102.1 million compared to King County's estimate of USD105.5 million. The other bids came from Kenny/Shea/Traylor JV at USD106.9 million and Kiewit/Bilfinger Berger at USD124.5 million.The contract includes a 6.4 km tunnel extending from Point Wells in unincorporated Snohomish County to Ballinger Way in Shoreline. The selected contractor will excavate a 15.2 m-deep portal at Point Wells to launch a tunnel boring machine. This machine will dig the 4 m-diameter tunnel and build the pipe underground without disrupting the surface.In addition, the contractor will microtunnel a smaller 164.6 m effluent tunnel about 1.5 m in diameter. Also included in the contract is the construction of a sampling facility in the portal at Point Wells to monitor treated wastewater going into Puget Sound. Construction is scheduled to begin in early 2007. Click us/94. Visit http://dnr.metrokc.gov/wtd/brightwater/index.htm 43/06.