Home > 21 > 45

Title: 21 - Coastal Zoning

Chapter: 45 - Flood Damage Prevention

Section: 40 - Administration

A. Establishment of Development Permit. A development permit shall be obtained before any

construction or other development, including manufactured homes, begins within any area

of special flood hazards, established in Section 21.45.030B. Application for a

development permit shall be made on forms furnished by Del Norte County and may

include, but not be limited to plans in triplicate drawn to scale showing:

1. The nature, location, dimensions and elevation of the area in question, existing or

proposed structures, storage of materials and equipment and their location;

2. Grading information showing existing and proposed contours, any proposed fill, and drainage facilities;

3. Proposed locations of water supply, sanitary sewer, and other utilities;

4. Location of the regulatory floodway when applicable;

5. Base flood elevation information as specified in 21.45.030.B or 21.45.040.C.2;

6. Proposed elevation in relation to mean sea level, of the lowest floor (including

basement) of all structures;

7. Proposed elevation in relation to mean sea level to which any structure will be

floodproofed, as required in 21.45.050.A.3;

8. All appropriate certifications listed in subsection (C)( 4) of this section; and

9. Description of the extent to which any watercourse will be altered or relocated as a

result of proposed development.

10. Certification from a registered civil engineer or architect that the nonresidential

floodproofed building meets the floodproofing criteria in 21.45.050.A.3.b.

11. For a crawl-space foundation, location and total net area of foundation openings\' as required in 21.45.050.3.c of this ordinance and detailed in FEMA Technical Bulletins 1-93 and 7-93.

B. Designation of the Floodplain Administrator. The Director of the Community

Development Department is appointed to administer and implement this chapter by

granting or denying development permits in accordance with its provisions.

C. Duties and Responsibilities of the Floodplain Administrator. The duties and

responsibilities of the floodplain administrator shall include, but not be limited to:

1. Permit Review.

a. Review all development permits to determine that the permit requirements of this chapter have been satisfied;

b. All other required state and federal permits have been obtained;

c. The site is reasonably safe from flooding;

d. The proposed development does not adversely affect the carrying capacity of areas where base flood elevations have been determined but floodways have not been determined. For purposes of this chapter, "adversely affects" means that the cumulative effect of the proposed development when combined with all other existing and anticipated development will not increase the water surface elevation of the base flood more than one foot at any point within Del Norte County.

e. All Letters of Map Revision (LOMR\'s) for flood control projects are approved prior to the issuance of building permits. Building Permits must not be issued based on Conditional Letters of Map Revision (CLOMR\'s). Approved CLOMR\'s allow construction of the proposed flood control project and land preparation as specified in

the "start of construction" definition.

2. Use of Other Base Flood Data. When base flood elevation data has not been provided in

accordance with Section 21.45.030B, the floodplain administrator shall obtain, review and

reasonably utilize any base flood elevation and flood way data available from a federal,

state or other source including but not limited to the 1964 flood elevation levels and the

county drainage plan, in order to administer Section 21.45.050.

3. Whenever a watercourse is to be altered or relocated:

a. Notify adjacent communities and the California Department of Water Resources prior

to such alteration or relocation of a watercourse, and submit evidence of such

notification to the Federal Insurance Administration;

b. Require that the flood-carrying capacity of the altered or relocated portion of the

watercourse is maintained.

4.Base Flood Elevation changes due to physical alterations:

a. Within 6 months of information becoming available or project completion,

whichever comes first, the floodplain administrator shall submit or assure that the

permit applicant submits technical or scientific data to FEMA for a Letter of Map

Revision (LOMR).

b. All Letters of Map Revision (LOMR\'s) for flood control projects are approved

prior to the issuance of building permits. Building Permits must not be issued

based on Conditional Letters of Map Revision (CLOMR\'s). Approved CLOMR\'s

allow construction of the proposed flood control project and land preparation as \'

specified in the "start of construction" definition.

Such submissions are necessary so that upon confirmation of those physical changes

affecting flooding conditions, risk premium rates and floodplain management

requirements are based on current data.

5. Changes in corporate boundaries. Notify FEMA in writing whenever the corporate

boundaries have been modified by annexation or other means and include a copy of a

map of the community clearly delineating the new corporate limits.

6. Obtain and maintain for public inspection and make available as needed:

a. The certification required by Section 21.45.050(A)(3)(a) (lowest floor

elevations);

b. The certification required by Section 21.45.050(A)(3)(b) (elevation or

floodproofing of nonresidential structures);

c. The certification required by Section 21.45.050(A)(3)(c) (wet floodproofing

standard);

d. The certified elevation required by Section 21.45.050(C)(2), subdivisions and

other proposed development standards;

e. The certification required by Section 21.45.050(E)(1), floodway encroachments;

f. The information required by Section 21.45.050(F)(6), coastal construction

standards.

7. Map Determination. Make interpretations where needed, as to the exact location of the

boundaries of the areas of special flood hazards (for example, where there appears to

be a conflict between a mapped boundary and actual field conditions). The person

contesting the location of the boundary shall be given a reasonable opportunity to

appeal the interpretation as provided in Section 21.45.070.

8. Take action to remedy violations of this chapter as specified in Section 21.45.030C.

9. Maintain a record of all variance actions, including justification for their issuance, and

report such variances issued in its biennial report submitted to the Federal Emergency

Management Agency.

10. Complete and submit the Biennial Report to the Federal Emergency Management

Agency.

11. Assure the community\'s General Plan is consistent with floodplain management

objectives herein.

(Ord. 95-15 (part), 1995, 2010)