Lincoln considers steps to avoid flooding RILEY JOHNSON, Lincoln Journal Star April 11, 2021 FacebookTwitterEmail LINCOLN, Neb. (AP) — Lincoln’s defenses against Salt Creek flooding will face a stiffer test against heavier rains in the future, a study commissioned by the city found. The city installed the Salt Creek levee system in the 1960s to withstand a 50-year flood, or a flow that has a 2% annual chance of occurring, the study said. Since then, the city has had three floods equal to or exceeding a 50-year flood level and one, in May 2015, that exceeded the 100-year flood level. “It’s protected us pretty well so far,” Lincoln’s Assistant Director for Utilities Donna Garden told the Lincoln Journal Star in an interview last week.