Shortly before intersecting with the Kansas River , the Big Blue discharges its waters into a reservoir called Tuttle Creek Lake , which lies slightly northeast of Manhattan . The reservoir is a man-made flood-control measure , held back by a dam composed of the limestone , silt , and gypsum dredged out of the floodplain by bulldozers left to rust underneath the flooded area . The land surrounding the reservoir is a state park area , although the Great Flood of 1993 decimated much of the northern area
Great Flood of 1993
Great Flood of 1993
Big Blue River (Kansas)