Stichtse Vecht dyke improvement

6,850 Cloeziana piles, head diameter 180 mm · Contractor Van der Lee, via Van Swaay (Harlingen)

Dike reinforcement along the Stichtse Vecht using 6,850 Eucalyptus cloeziana piles, with a head diameter of 180 mm. Carried out by Van der Lee, supplied via Van Swaay (Harlingen).