Some 6 km required: 3 km pipejacked at 1.5 m and 1.2 m internal diameter from Lamiako to University awarded to Ferrovial; and 2.3 km at 3.6 m outside diameter to be bored by Robbins TBM through hard rock from 15 m-diameter shaft by jv of ACS, Obras Subterraneas and Sycasa commencing in mid-1999. February 1999.
Open tendering, deadline 6th March, 2002 for the construction of a 3,750 m interceptor sewer in landfill and rock. A 1.2 m-diameter shield boring machine will be used on 50% of the length, traditional means on 10% and open cut on 40 %. Mechanised tunnelling with pipejacking. Tender value of €12.1 million. Commissioning in December, 2004. Engineering consultancy Saitec designed the project. Visit http://ted.eur-op.eu.int/ojs/en/frame.htm, OJ S 14, document 10573-2002 or contact Consorcio de Aguas Bilbao Bizkaia, Bilbao, fax +34 944873110. 08/02.
Open tendering, deadline 6th March, 2002 for the construction of a 2,300 m tunnel to divert the Elguera stream. Outer diameter of 3.60 m and inner diameter of 3 m. A TBM will be used. Shales, marls and limestone. Support with rockbolts, shotcrete, mesh and TH16 steel arches. Tender value of €10 million. Award in June, 2002. Works start in July, 2002 for completion in November, 2004. Engineering consultancy Tecnoconsult designed the project. Visit http://ted.eur-op.eu.int/ojs/en/frame.htm, OJ S 14, document 10574-2002 or contact Consorcio de Aguas Bilbao Bizkaia, Bilbao, fax +34 944873110. 09/02.
Award to a jv of Tecsa and Cavosa of a €9.5 million contract to build the 3,750 m Udondo-Erandio interceptor. 39/02.Necso has secured the construction of the 2.3 km tunnel to divert the Elguera stream for €8.1 million. 39/02.Open call for bids, deadline 27th October, 2003 for construction of the Nervion interceptor, section San Miguel-Arriaga-Miraballes. There are four pipejacked sections in rock, total length around 1.5 km, inner diameter 1,600 mm, with two crossings under river Nervión. A microtunnelling machine will be used. Depth: 16 to 18 m. Tender value: €10.5 million. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=157717-2003, OJ S 174, or contact Consorcio de Aguas de Bilbao Bizkaia, Bilbao, fax +34 944873110. 38/03.Ferrovial-Agroman has secured a EUR7.7million contract to build the Nervion interceptor, section San Miguel-Arriaga-Miraballes, including four pipejacked sections in rock, total length around 1.5 km, inner diameter 1,600 mm, with two crossings under river Nervion. A microtunnelling machine will be used at a depth of 16-18 m. Visit www.ferrovial.es 15/04.Open call for bids, deadline 7th April, 2006 for construction of the Ugarte-Kareaga sewer, consisting of a microtunnel of 1.1 km approximately, to be built using a 1,200 mm closed face microtunnelling machine and reinforced concrete jacked pipes, trenches and secondary works. The tender estimate is EUR11.1 million, whereof about EUR7 million for the microtunnel. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=035935-2006, OJ S 33, or contact Consorcio de Aguas, Bilbao, fax +34 944873110. Also visit www.consorciodeaguas.com 10/06.
