BOARD01548

• Board Meeting Date: 1/25/2005
• Description: Proposed Revisions to the Rules and Regulations for Dam Safety and Dam Construction
• Board Meetings - Doc Type: Memo

7.1.2.3 The breach shall be designed to prevent silt previously deposited in the
reservoir and material excavated for the breach from washing downstream.

7.1.2.4 Water impounded in the reservoir area shall be released in a controlled
manner that will not endanger lives or damage downstream properties.

7.1.2.5 The drawing(s) of the plan for the breach ofa dam shall include the location,
dimensions and lowest elevation of the breach.

7.1.2.6 The removal or breaching of the dam shall be performed under the purview
of an engineer.

7.1.2.7 The engineer shall submit written notice of the completion of the removal or
breaching of the dam along with as-constructed plans in conformance with Rules 10.

7.1.3 Low Hazard and NPH Dams - For Low Hazard and NPH dams the owner shall
submit a written notice of intent to breach the dam to the State Engineer. The State Engineer
shall determine the size ofthe breach in accordance with the following: The bottom width
ofthe breach shall be one-half the height of the dam but not less than ten feet; and the side
slopes not steeper than one horizontal to one vertical. The breach shall be to original ground
at the low point in the foundation of the dam and the excavated material shall not be placed
in the stream channel.

Rule 8. Fees:

The owner shall submit with the application for construction, enlargement, alteration, modification,
or repair an amount equal to three dollars for each one thousand dollars or fraction thereof of the
estimated cost of construction including engineering costs, but the maximum fee shall not exceed
three thousand dollars, nor shall the minimum fee be less than one hundred dollars. When an owner
resubmits an application that was previously received and disapproved by the State Engineer, the
owner shall submit a new filing fee in accordance with the above. Checks shall be made payable to
the Colorado Division of Water Resources.

Rule 9. Construction of Jurisdictional Size Dams:

9.1. High Hazard and Significant Hazard Dams - For all High Hazard and Significant Hazard
dams, the owner shall provide an engineer experienced in dam design and construction, who shaH
be responsible for the following:

9.1.1 Plan for Construction Observation - Not less than 30 days prior to construction, the
engineer must submit to the State Engineer a general plan for construction observation. The
construction observation plan shall include:

9.1.1.1 The date ofthe start of construction;

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