The audit observed that objectives with regard to maintaining the waterway assets for which the state is responsible or the level of maintenance have not been specified unequivocally and clearly. The main audit question was: What preconditions does the information base used in steering the maintenance of waterways provide for effective activities? In this connection the audit strove to determine, among other things, how well objectives with regard to preserving the condition and value of waterway assets as well as the service level of the waterway network have been achieved. This document contains a summary of the main results of the audit. The entire audit report is available only in Finnish.