Connecticut Administrative Code › Title 22a - Environmental Protection › 409 - Dams and Similar Structures › Section 22a-409-1 - Definitions. Registration of dams and similar structures

Current through July 10, 2024
(a)
Definitions
.
As used in Sections 22a-409-1 and
				22a-409-2
				of the Regulations of Connecticut State Agencies:
(1) "Abutment" means natural ground that
			 borders on either end of the dam structure.
(2) "Acre-foot" means a unit of volume of
			 water equal to 43,560 cubic feet or 325,853 gallons (one foot depth over one
			 acre).
(3) "Appurtenance" means any
			 structure or mechanism other than the dam itself which is associated with its
			 operation.
(4) "Arterial roadway"
			 means a roadway that provides a high level of mobility and that is frequently
			 the route of choice for buses and trucks, as provided in the U.S. Department of
			 Transportation document entitled "Highway Functional Classification Concepts,
			 Criteria and Procedures, 2013 edition".
(5) "Breach" means an alteration of a dam
			 either deliberately or accidentally in such a way as to release its impounded
			 waters resulting in partial or total failure of the dam.
(6) "Collector roadway" means a roadway that
			 collects traffic from local roadways and connects traffic to arterial roadways,
			 as provided in the U.S. Department of Transportation document entitled "Highway
			 Functional Classification Concepts, Criteria and Procedures, 2013
			 edition".
(7) "Commissioner" means
			 the Commissioner of Energy and Environmental Protection, or such commissioner's
			 designated representative.
(8)
			 "Certificate of Dam Registration" or "(CDR)"means a form issued by the
			 commissioner to the owner that acknowledges receipt of all required information
			 regarding a dam registration and a one-time payment of the registration
			 fee.
(9) "CT Dam ID Number" means a
			 unique identifying number assigned to a dam registered and regulated by the
			 State of Connecticut.
(10) "Dam"
			 means any barrier of any kind whatsoever which is capable of impounding or
			 controlling the flow of water, including but not limited to storm water
			 retention or detention dams, flood control structures, dikes and incompletely
			 breached dams.
(11) "Dam failure"
			 has the same meaning as provided in section
			 22a-411a-1 of the
			 Regulations of Connecticut State Agencies (RCSA).
(12) "Dam height" means the vertical distance
			 from the crest of a dam or similar structure to the downstream toe of such dam
			 or similar structure.
(13)
			 "Embankment" means the fill material, usually earth or rock, placed with
			 sloping sides providing a barrier which impounds water.
(14) "Flood" means any high flow, overflow,
			 or inundation by water which causes or threatens damage to persons or
			 property.
(15) "Hazard potential"
			 means probable damage that would occur if the structure failed, in terms of
			 loss of human life and economic loss or environmental damage.
(16) "Local roadway" means a roadway that
			 provides a high level of accessibility used to provide direct access to
			 multiple properties, as provided in the U.S. Department of Transportation
			 document entitled "Highway Functional Classification Concepts, Criteria and
			 Procedures, 2013 edition".
(17)
			 "Operator" means the person(s) in control of, or having responsibility for, the
			 daily operation of the dam as designated by the owner on the dam registration
			 form required by subsection (b) of this section.
(18) "Owner" means the person(s) having legal
			 ownership of the dam.
(19) "Person"
			 has the same meaning as provided in section
			 22a-2(b)
			 of the Connecticut General Statutes.
(20) "Professional engineer" means an
			 individual who is currently licensed and registered under section
			 20-302
			 of the Connecticut General Statutes.
(21) "Regulated dam" means a dam subject to
			 the jurisdiction of the Department of Energy and Environmental Protection
			 pursuant to section
			 22a-401
			 of the Connecticut General Statutes.
(22) "Regulatory inspection" means an
			 inspection required in accordance with section
			 22a-409(c)
			 of the Connecticut General Statutes and section
			 22a-409-2(c)
			 of the Regulations of Connecticut State Agencies.
(23) "Spillway design flood" or "SDF" means
			 the largest flood that a given structure is designed to pass safely.
(24) "Structure" means the dam, its
			 appurtenances, abutments and foundation.
(25) "Toe" means the base portion of the
			 impounding structure which intersects with natural ground at the upstream and
			 downstream sides.
(26) "100-year
			 flood" means a statistical designation that there is a 1 in 100 chance that a
			 flood of this intensity will occur at a particular geographical location during
			 any year.