As a result of diminishing budgets for maintenance, the Dutch waterway authority Rijkswaterstaat is amongst others in search for economizing infrastructural facilities for commercial inland vessels along its waterways. One type of those facilities are the mooring constructions for line up- and waiting areas at lock approaches. Another type are the guiding constructions for entering the lock chamber, the so called funnels. The mooring and guiding constructions basicly exist of piles, connected by crossbeams and can be designed in either a fixed or a floating version, depending on the fall of the waterway.