Sec. 3-1521

Floodplain

• Base flood elevation data for large proposals

  Base flood elevation data shall be obtained from other sources or developed using detailed methodologies, hydraulic and hydrologic analysis, comparable to those contained in a flood insurance study for subdivision proposals and other proposed development proposals (including manufactured home parks and subdivisions) that exceed 50 lots or five acres, whichever is the lesser.

• Subdivision drainage

  All subdivision proposals shall have adequate drainage provided to reduce exposure to flood hazards,

• Subdivision flood damage minimization

  All subdivision proposals shall be consistent with the need to minimize flood damage;

• Subdivision public utilitiesPublic utilitiesInfrastructure serving the wider area — substations, pump stations, towers.

  All subdivision proposals shall have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize flood damage;