The procurement is for construction works for laying water pipelines in Mjøsa, for Gjøvik municipality. The contract also includes excavation on land, drilling on land against the sea, receiving and laying of PE pipes and pipe parts, delivery and assembly of load scales, refilling work, adjustments etc.   PE pipelines are to be delivered to the rigging site by the contracting authority by the pipe supplier. The rigging site will be selected by the tenderer. The delivery date must be adapted to the tenderer ́s progress, in the relevant time period. A binding delivery plan will be prepared in consultation with the pipe supplier and tenderer.   Pipes are to be delivered and stored for 18 or 20 metres. The executing contractor on site shall be responsible for the development of rigging places and supply roads in a condition that enables deliveries of pipes up to the relevant delivery length. The receiving inspection and unloading of pipes from the vehicle will be carried out by the executing contractor in this contract.    The work includes hammer drilling of 4 pipes under the E6 at Biri, as well as drilling uncompacted material from these pipes, through sheet piling for raw water pump station and into Mjøsa. The extraction of pipes to a raw water pump station and to a building pit by the E6.