The "FP" Floodplain District encompasses the floodway and floodway fringes along the watercourse of the Meramec River and its tributary streams for which hydrographic study and calculation as determined by the U.S. Army Corps of Engineers (January, 1977) indicates a risk of life and property as a consequence of storm water run-off. The regulations of this district are supplemented and qualified by additional general regulations appearing elsewhere in this chapter.

See ARTICLE II: "FP" Floodplain District Regulations for complete details on this district.

Purpose and Intent.
(a) The flood hazard areas of St. Louis County, Missouri, are subject to periodic inundation which results in loss of life and property, health and safety hazards, disruption of commerce and governmental services, extraordinary public expenditures for flood protection and relief, and impairment of the tax base, all of which adversely affect the public health, safety and general welfare. These flood losses are caused by the cumulative effect of obstructions in flood plains causing increases in flood heights and velocities and by the occupancy of flood hazard areas by uses vulnerable to floods or hazardous to other lands which are inadequately elevated, floodproofed, or otherwise protected from flood damages.

(b) This Section is therefore necessary to protect human life and health; to minimize expenditure of public money for costly flood control projects; to minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; to minimize prolonged business interruptions; to minimize damage to public facilities and utilities such as water and gas mains, electric, telephone and sewer lines, streets and bridges located in floodplains; and to help maintain a stable tax base by providing for the sound use and development of flood-prone areas in such a manner as to minimize future flood blight areas.

(c) It is the purpose of this Section to promote the public health, safety and general welfare and to minimize public and private losses due to flood conditions in specific areas by provisions designed to restrict or prohibit uses which are dangerous to health, safety and property due to water or erosion or in flood heights or velocities; to require that uses vulnerable to floods, including facilities which serve such uses, be protected against flood damage at the time of initial construction; to control the alteration of natural floodplains, stream channels, and natural protective barriers, which are involved in the accommodation of floodwaters; and to control filling, grading, dredging, and other development which may increase erosion or flood damage.

See ARTICLE II-A: St. Louis County Floodplain Non-Urban for complete details on this district. 

The "NU" Non-Urban District of St. Louis County encompasses areas within which rough natural topography, geological conditions, or location in relation to urbanized areas creates practical difficulties in providing and maintaining public roads, and public or private utility services and facilities. The "NU" Non-Urban District also encompasses areas where specific potential development patterns have not been identified or where significant non-urban uses have been established.

See ARTICLE II-B: St. Louis County Non-Urban District for complete details on this district.