Cleaning gullies and linear drainage channels in the municipality of Zeewolde

Summary

Waterschap Zuiderzeeland is procuring annual cleaning of approximately 11,000 street and pavement gullies and 2,400 metres of linear drainage channels in the municipality of Zeewolde. The work includes locating, inspecting and cleaning the gullies—approximately 10,500 mechanically and 500 manually—and removing and processing the resulting sludge and waste. An optional second cleaning round of about 5,000 gullies per year may be ordered. The contract has an initial four-year term, with two possible two-year extensions; estimated quantities are not guaranteed.