Chapter 25 — FLOODPLAIN MANAGEMENT
Lake County Municipal Code · 2026-09 edition · updated 2026-10-02 · Lake County
Sections in this part
Sec. 25-1. - Statutory Authorization, Findings of Fact, Purpose and Methods.¶
1.1 Statutory Authorization.¶
1.2 Findings of Fact.¶
1.3 Statement of Purpose.¶
1.4 Methods of Reducing Flood Losses.¶
Sec. 25-2. - Definitions.¶
2.0 Accessory Structure: A structure used solely for parking or limited storage (two…¶
2.1 Accessory Use: A use which is incidental and subordinate to the principal use of…¶
2.2 Appeal: A request for a review of the Floodplain Administrator's interpretation of…¶
2.4 Base Flood: A flood which has a one percent chance of being equalled or exceeded in…¶
2.7 Conditional Letter of Map Revision (CLOMR): A letter from FEMA commenting on…¶
2.8 Development: On land, in or under land or water, the placement or erection of any…¶
2.9 Development Permit: A permit required by the Lake County Ordinance Code for…¶
2.10 Encroachment: The advance or infringement of uses, plant growth, fill, excavation,…¶
2.12 Flood, Flooding, or Flood Water: A general and temporary condition of partial or…¶
2.13 Flood Boundary and Floodway Map (FBFM): The official map on which the Federal…¶
2.14 Flood Hazard Boundary Map (FHBM): The official map on which the Federal Emergency…¶
2.15 Flood Insurance Rate Map (FIRM): The official map on which the Federal Emergency…¶
2.16 Flood Insurance Study (FIS): The official report provided by the Federal Insurance…¶
2.17 Floodplain or Flood-prone Area: Any land area susceptible to being inundated by…¶
2.18 Floodplain Administrator: The Director of the Lake County Flood Control and Water…¶
2.19 Floodplain Management: The operation of an overall program of corrective and…¶
2.20 Floodplain Management Regulations: This chapter and other zoning ordinances,…¶
2.21 Floodproofing: Any combination of structural and nonstructural additions, changes,…¶
2.22 Floodway: The channel of a river or other watercourse and the adjacent land areas…¶
2.23 Floodway Fringe: That area of the floodplain on either side of the "Regulatory…¶
2.24 Fraud or Victimization of the Public: Shall include adding unnecessarily to…¶
2.25 Functionally Dependent Use: A use which cannot perform its intended purpose unless…¶
2.27 Highest Adjacent Grade: The highest natural elevation of the ground surface prior…¶
2.28 Historic Structure: Any structure that is:¶
2.29 Letter of Map Revision (LOMR): A letter from FEMA officially Revising the current…¶
2.30 Lowest Floor: The lowest floor of the lowest enclosed area, including basement.¶
2.31 Manufactured Home: A structure, transportable in one or more sections, which is…¶
2.32 Manufactured Home Park: A parcel or contiguous parcels under one (1) ownership…¶
2.33 Mean Sea Level: For purposes of the National Flood Insurance Program, the National…¶
2.34 New Construction: For floodplain management purposes, means structures for which…¶
2.35 Nonconforming use: A structure or the use of a structure or premises which was…¶
2.36 One-hundred-year flood or 100-year flood: See "Base flood."¶
2.37 Physical map revision (PMR): A reprinted FBFM, FHBM, and/or FIRM incorporating…¶
2.38 Recreational vehicle: A motorhome, travel trailer, camper or camping trailer, with…¶
2.40 Riverine: Relating to, formed by, or resembling a river (including tributaries), stream, brook, etc.¶
2.41 Sheet Flow Area: See "Area of shallow flooding."¶
2.42 Special Flood Hazard Area (SFHA): An area having special flood hazards, and shown…¶
2.43 Start of construction: Includes substantial improvement and other proposed new…¶
2.44 Structure: A walled and roofed building that is principally above ground; this…¶
2.45 Substantial damage: Damage of any origin sustained by a structure whereby the cost…¶
2.46 Substantial improvement: Any reconstruction, rehabilitation, addition, or other…¶
2.47 Variance: A grant of relief from the requirements of this chapter which permits…¶
2.48 Violation: The failure of a structure or other development to be fully compliant with this chapter.¶
2.49 Water Surface Elevation: The height, in relation to the National Geodetic Vertical…¶
2.50 Watercourse: A lake, river, creek, stream, wash, arroyo, channel or other…¶
Sec. 25-3. - General Provisions.¶
3.1 Lands to Which This Chapter Applies.¶
3.2 Basis for Establishing the Areas of Special Flood Hazard.¶
3.3 Compliance.¶
3.4 Abrogation and Greater Restrictions.¶
3.5 Interpretation.¶
3.6 Warning and Disclaimer of Liability.¶
3.7 Severability.¶
Sec. 25-4. - Administration.¶
4.1 Development Permits.¶
4.2 Designation of the Floodplain Administrator.¶
4.3 Duties and Responsibilities of the Floodplain Administrator: The duties and…¶
4.4 Duties and Responsibilities of Permitting Agencies.¶
4.5 Appeals.¶
4.6 Notice of Public Hearing.¶
Sec. 25-5. - Provisions for Flood Hazard Reduction.¶
5.1 Standards of Construction.¶
5.2 Standards for Utilities.¶
5.3 Standards for Subdivisions and Divisions of Land.¶
5.4 Standards for Manufactured Homes.¶
5.5 Standards for Recreational Vehicles.¶
5.6 Floodways.¶
Sec. 25-6. - Variance Procedure.¶
6.1 Nature of Variances.¶
Sec. 25-7. - Nonconforming Uses.¶
7.1 A structure or the use of a structure or premises which was lawful before the…¶
Sec. 25-8. - Fees.¶
8.1 Fees required by this chapter shall be paid to the Lake County Flood Control and…¶
Sec. 25-9. - Amendments.¶
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