Stor-Elvdal municipality intends to enter into a contract for detailed engineering design services for surface water measures in the centre of Otta. As NVE ́s main contract for flood protection has anticipated start-up 2028/29, the engineering design services shall facilitate for the municipal surface water pipelines to be completed and put into operation before the flood protection system is in place, where such a solution is appropriate. The strategy means that the pipeline network is to be built with temporary outlets to the river, but is prepared for future connection in NVE ́s pump stations. It must be seen with close interaction with NVE and their consultants in order to have engineered systems that are feasible in relation to future flood protection. Tenderers shall use their expertise and competence to contribute to fulfilling the aim of the contract.