The dredge Bruxelles XXXX at work on Lake Ontario near the mouth of the Niagara River, June 5, 1916. Sand dredged from the lake bottom 12.2 metres below is being chuted into an adjacent scow which will be taken to Port Weller. After mixing with cement, gravel aggregate, and water, the finished product was used to supply the extensive requirements for concrete throughout the length of the Welland Ship Canal.