Regional authority is promoting new 7 km x 10m2 sewer outlet from a projected water treatment plant. Scheduled to start in 2002. August 1999.Open call for tenders, deadline 18th September, 2006 for construction of an approx. 8 km-long sewage tunnel, single tube, connecting to an existing tunnel. The minimum required area is 7 sq m. For a TBM alternative, the accepted area is 7-12.6 sq m, for a drill/blast alternative the accepted area is 7-20 sq m. The bedrock consists of various types of hard gneisses. The rock cover varies in general between 20 and 100 m, except for a short passage.There are two alternatives for the construction method: TBM or drilling and blasting. In the TBM case, the tunnel will be drilled from the existing sewage tunnel at a depth of approx. 100 m. This point can be reached from an existing access tunnel. In the drill/blast case, the tunnel will be excavated from a 300 m-long 20 sq m new access tunnel that will be located approximately halfway between the end points of the sewage tunnel.The tunnel will be unlined. If the tunnel is excavated with the drill/blast method, a concrete floor with a V-shaped trench will be constructed. Rock support is planned with grouted bolts and fibre-reinforced shotcrete. A contract announcement is expected in October 2006. Tunnelling is scheduled to commence in end 2006 or early 2007. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=107980-2006, OJ S 101, or contact Gryaab, Gothenburg, tel. +46 31647405. E-mail mats.strandberg@gryaab.se 24/06.Open call for tenders, deadline 25th January, 2007 for site supervision and work management for an approx. 8 km-long sewage tunnel between Lerum and Partille. Click se/24. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=250449-2006 and http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=250450-2006, OJ S 234, or contact Gryaab, Gothenburg, tel. +46 31647405. E-mail mats.strandberg@gryaab.se 51-52/06.A SEK280.2 million contract has been awarded on 29th December, 2006 to Beton- und Monierbau of Austria to build an approx. 8 km-long sewage tunnel between Lerum and Partille. Drilling and blasting will be used finally. Click se/24. Visit www.bemo.net 01-02/07.Karlander Konsult signed a contract to be site manager for an approx. 8 km-long sewage tunnel between Lerum and Partille. Hourly rate of SEK690/hour. Click se/24. Visit www.karlanderkonsult.se 48/07.Bergab and Karlander Konsult signed a contract for inspection and control of the construction works for an approx. 8 km-long sewage tunnel between Lerum and Partille. Hourly rate of SEK670/hour. Visit www.bergab.se Click se/24. 48/07.