CEDAR RAPIDS — Cedar Rapids winter overflow shelter served 460 people this past winter — the busiest season ever — according season statistics released on Monday. The shelter provided a total of 6,286 overnight stays between Dec. 1, 2018 to March 31, 2019, according to data from the organizers of the Community Overflow Winter Shelter System, which is a committee of the Linn County Continuum of Care.“This was one of the coldest and most brutal winters on record,” said Phoebe Trepp, executive director of Willis Dady Homeless Services, which manages the shelter.