More than a decade after Sudbury's Flour Mill neighbourhood was flooded, the city is confident it has found a solution. But instead of building a system of channels and flood walls, the city bought the houses of the people most affected. A once-in-a-century storm filled the streets of the Flour Mill with water in 2009. But many came to blame a newly built hilltop subdivision called Sunrise Ridge for changing drainage patterns in the area and claimed there was now threat of flooding every spring.