15.24.010   Statutory authorization.

The legislature of the state of Washington has delegated the responsibility to local governmental units to adopt regulations designed to promote the public health, safety, and general welfare of its citizenry.

(Ord. No. 997, § 2(1.1), 2-7-2013)

15.24.020   Findings of fact.


The flood hazard areas of Black Diamond are subject to periodic inundation which results in flooded roads and yards. If development were to be allowed in these areas there would be the potential for loss of life and property, health, and safety hazards, disruption of commerce and governmental services, extraordinary public expenditures for flood protection and relief, adverse environmental impacts and impairment of the tax base, all of which adversely affect the public health, safety, and general welfare.


Flood losses are exacerbated by the cumulative effect of obstructions in areas of special flood hazards which increase flood heights and velocities, and when inadequately designed may cause damage in other areas. Uses that are inadequately flood-proofed, elevated, or otherwise protected from flood damage also contribute to the flood loss.


The mapped flood hazard zones within the City of Black Diamond are entirely within protected wetlands.

(Ord. No. 997, § 2(1.2), 2-7-2013)

15.24.030   Statement of purpose.

It is the purpose of this chapter to promote the public health, safety, and general welfare; reduce the annual cost of flood insurance; and minimize public and private losses due to flood conditions in specific areas by provisions designed:


To protect human life and health;


To minimize expenditure of public money and 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 areas of special flood hazard;


To help maintain a stable tax base by providing for the sound use and development of areas of special flood hazard so as to minimize future flood blight areas;


To ensure that potential buyers are notified that property is in an area of special flood hazard; and


To ensure that those who occupy the areas of special flood hazard assume responsibility for their actions.

(Ord. No. 997, § 2(1.3), 2-7-2013)

15.24.040   Methods of reducing flood losses.

In order to accomplish its purposes, this chapter includes methods and provisions for:


Restricting or prohibiting uses which are dangerous to health, safety, and property due to water or erosion hazards, or which result in damaging increases in erosion or in flood heights or velocities;


Requiring that uses vulnerable to floods, including facilities which serve such uses, process permits through the variance procedure to show necessity and minimize the impact of development within the flood hazard zone and such uses designed to be protected against flood damage at the time of initial construction;


Controlling the alteration of natural flood plains, stream channels, and natural protective barriers, which help to accommodate or channel flood waters;


Controlling, filling, grading, dredging, and other development within the flood plain; and


Preventing or regulating the construction of flood barriers that unnaturally divert floodwaters or may increase flood hazards in other areas.

(Ord. No. 997, § 2(1.4), 2-7-2013)