Lansing, Michigan's capital, sits at the confluence of the Grand and Cedar Rivers, with the Red Cedar River running through the Michigan State University campus in adjacent East Lansing. All three waterways have flooded during major rain events — the Grand River crested at near-record levels during April 2013 and again in February 2018 (ice jam flooding). The city's housing stock spans from early 1900s craftsman bungalows in older neighborhoods to 1960s–1980s ranch homes in outer areas — pipe freeze risk is among the highest in lower Michigan, with January temperatures regularly dropping below 0°F for 5–10 day stretches. The 2014 Polar Vortex event caused widespread pipe bursts across Ingham County. A significant portion of Lansing's sewer infrastructure dates from the 1920s–1930s, creating persistent combined sewer overflow issues during spring rain and snowmelt events.
High-risk neighborhoods
Old Town (North Lansing — craftsman bungalows, aging plumbing, combined sewer backup); REO Town (south of downtown, Grand River proximity, Zone AE portions); South Lansing (Grand River floodplain, Zone AE, highest NFIP claim frequency); East Lansing/Red Cedar area (MSU corridor, Red Cedar River flooding during spring runoff)