This levee has overtopped 7 times and breached 3 times from overtopping. The overall risk is primarily driven by the overtopping which represents 95% of the total risk. The flood of record occurred on November 25, 1990, with a max gage height of 33.50 ft (77-year) at the USGS Gage 12150800. The foundation soils are sandy silt and silty sands to depths of 20 feet and are underlain by poorly graded sands and some organics. These typical foundation conditions are not conducive for BEP failures. However, no borings or subsurface information exists where historic channels cross the levee. These locations are more likely to have seepage and piping related issues. Snohomish County makes a significant effort to educate citizens living within the floodplain of the risks of flooding and provides information on how to best prepare for a flood. The County utilizes a free hazard alert app, SnoCoAlert, that provides real-time flooding information and can automatically notify citizens of flood alerts via phone, text, or email messages. There are approximately 100 structures within the leveed worth an estimated $48M. The Marshland Flood Control District spans the floodplain south of the Snohomish River between the cities of Everett and Snohomish. Despite these growing urban centers, over 70% of the land is maintained as commercial agriculture. The largest land-holder operates a 1,500 acre blueberry farm. The other primary commercial farming enterprises grow cereal grains (1,000 acres) and hay or silage (800 acres) for one commercial dairy and other local livestock producers. The District also supports grazing, vegetable production and turf grass. Critical infrastructure consists of Harvey Airfield. The airfield has two runways (1 asphalt and 1 turf) and 17 hangers which house approximately 350 small aircraft. In addition to providing storage and services for small aircraft, the airfield offers scenic flights and skydiving.