The complex consists of three groups of sluices, each with four shafts. Each spout is equipped with two lift gates that regulate the water barrier. The project included the renovation of one spui shaft in the first spui complex. The emphasis was on renovation of the pedestrian and guide work of the lift gates. Additional work was also carried out on the civil engineering structure.
The work included renovating the mechanical components, idlers, guide rails and seals of the lift gates, carrying out various civil works and conserving the structure(s) with the associated work. In addition, the entire sluice pipe will be drained and cleaned before the work is carried out.