0 Occurrences 0 Occurrences 4 Occurrences 11 Occurrences 
Lakeside 370 Levee System Location
City, County, and State of the levee system. Determined by the levee alignment location not the leveed area.
St. Peters, St. Charles County, Missouri
System ID
Unique identifier code for the levee system using 10 or 12 numbers in length.
5605650001
Operation and Maintenance Organization
Entity responsible for day-to-day management of the levee.
Lakeside 370 Levee District
Floodplain Management
Entities responsible for regulating activities that occur in areas prone to flooding.
FEMA Region 7
Last Assesment Date Last Risk Assessment or Formal Inspection.
7/26/2022
Data Last Updated Date any of this information for the system has been updated.
4/24/2025
Levee Length
Combine length of all the levee system features including the embankments, floodwalls, closures where they exist for this system.
4.123 Miles Average Levee Height
The average height of the levee system. The levee profile viewer on the mapping window will show the actual levee height values for the length of the levee if available.
19 Feet Year Levee Constructed Year levee system was fully completed as a flood reduction project.
2006 Summary
General text description of the levee system with a summary of why the levee is there, and the benefits it provides.
The Lakeside 370 Levee System reduces the risk of flooding from the Mississippi River to the Premier 370 Business Park within the City of St. Peters in St. Charles County, Missouri. The system was locally constructed and is operated and maintained by the nonfederal sponsor, Lakeside 370 Levee District. The levee system was completed in 2006 and consists of 4.1 miles of earthen embankment constructed to attract commercial development to the St. Peters area. To date, the 1,400-acre leveed area is comprised of commercial and industrial properties and a major highway, Missouri Route 370. The leveed area is zoned and graded for commercial and industrial development and significant economic development has occurred since 2016 including large warehouse space for companies such as Amazon, Best Buy, and FedEx. The system provides benefits to approximately $300 million in commercial property and more than 1000 employees and patrons. New economic development is expected to continue to expand into the entire Business Park. The Lakeside 370 Levee System has prevented the leveed area from flooding during several major flood events. The levee system is one of the newest in the region, is well maintained, and has performed well in recent flood events.
Performance & Condition
General text description of the historical and anticipated performance of the levee, the people and property benefitting from the levee and who may be at risk of flooding, and actions to address areas of concern.
A risk assessment performed in 2021 estimates there is a low likelihood the levee would be overtopped by a flood event. Due to regional geology and evidence of underseepage observed during the 2019 flood event, underseepage is the primary concern with the levee before overtopping. Despite observed underseepage, there are plans in place to address underseepage issues, coordinate flood warnings, and evacuation plans in the event of an emergency. In the event of failure, flooding could result to depths up to 21 feet, environmental consequences, economic damage, and loss of life if the population is not evacuated.
Flooding Hazard
Historic Loading by Percentage of Height
Representative loading associated with historical flood information as a percentage of the levee height or overtopping.
Representative loading associated with historical flood information as a percentage of the levee height or overtopping.
0 Occurrences 0 Occurrences 4 Occurrences 11 Occurrences