Agoura Hills Municipal Code § 9511 Purpose

The D district is intended to be applied to those areas of the city which, under present conditions, are known to be subject to flooding. The objectives of the D district shall be:

A. To prevent loss of life and property and to minimize economic loss caused by flood flows;

B. To establish criteria for land management and use in floodprone areas that are consistent with those promulgated by the Federal Insurance Administration for the purpose of providing flood insurance eligibility for property owners;

C. To promote commercial and residential development and/or improvement which would not encroach or obstruct the natural flow of water within a designated drainageway, floodway, or watercourse;

D. To regulate and control uses below the elevation of the one-hundred-year flood flow.

It is contemplated that where flood control measures are provided so as the [to] eliminate flood hazards, the D district will be removed from the property.

The D overlay district shall be applied to those areas that are known to be subject to flooding as determined by the city council based on recommendations by the flood control district.

The following uses and structures shall be permitted in the D district subject to the issuance of a conditional use permit by the planning commission:

A. Nonresident accessory structures permitted by the underlaying district regulations provided that such structures comply with all of the conditions listed below:

1. Floodproofing and/or flood protective measures shall be required to be installed in a manner approved by the chief engineer of the affected flood control district. Examples of floodproofing include, but are not limited to:

a. Installation of watertight doors, bulkheads, and shutters.

b. Reinforcement of walls to resist water pressure.

c. Use of paints, membranes, or mortars to reduce seepage through walls.

d. Addition of mass or weight to structure to resist flotation.

e. Armor protection of all fill materials from scour and/or erosion.

f. Certification by a registered professional engineer or architect.

g. All new and replacement water supply and sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the system and discharge from systems into floodwaters.

h. On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding.

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

2. Building and health code requirements applicable to floodplain districts shall be complied with.

3. The bottom elevation or first floor of any structure shall be at least one (1) foot above the level of the one-hundred-year flood. Exceptions may be recommended by the building official only for nonresidential structures which are adequately floodproofed, in accordance with the Building Code, up to the level of the one-hundred-year flood.

4. Prohibit encroachments, including fill, new construction, substantial improvements, and other development unless certification by a registered professional engineer or architect is provided demonstrating that encroachment shall not result in any increase in flood levels during the occurrence of the base flood discharge.

B. Public utility lines, excluding any buildings or other structures.

C. Recreation areas, parks, campgrounds, playgrounds, fishing lakes, hunting clubs, riding and hiking trails, golf courses, golf driving ranges, polo fields, athletic fields, parking lots, all of which involve only the open use of land without permanent structures or improvements.

D. Temporary and readily removable structures accessory to agricultural uses.

The following uses are specifically prohibited in the D district:

A. Excavations that will tend to broaden the floodplain or direct flood flows out of the natural floodplain;

B. Landfills, improvements, developments, or other encroachments that could increase water surface elevations of the one-hundred-year flood more than one (1) foot or that cannot be fully offset by stream improvements as provided in section 9517.2;

C. Structures designed for human habitation.

The property development standards of the underlying zone shall apply insofar as they pertain to the uses of this district.

All development shall be subject to site plan approval as provided by chapter 6.

There are none except as required under the conditional use permit, and as required under section 9513.