FLOOD03313

• County: Denver
• Basin: South Platte
• Title: Drop Structures in the Denver Metropolitan Area
• Date: 12/1/1986
• Prepared For: UDFDC
• Prepared By: McLaughlin Water Engineers, Ltd.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Board of Directors
Executive Committee:
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Cathy Reynolds 0
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Chairman 0
City of Denver 0
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Sleven E. Cramer II:
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Chairman Pro- T em ~
Adams County 0
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Eugene L. Otis II:-
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City of Englewood z
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Arlen E. Patton 0
T raasurer
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Bob Brooks =>
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Members: e-
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David A. Day ~
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Engineer '"
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Rich Ferdinandsen N
Jefferson County
Josie Heath CD
Boulder County '"
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George A. Hovorka w
City of Westminster e-
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Linda Jourgensen <JJ
City of Boulder
Suzy McDanal "-
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Douglas County N
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Nelson McNulty ~
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City of Edgewater .,
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Federico Pena z
John Mrozek 0
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City of Denver a.
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M.L "Sam" Sandos ~
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City of Denver e-
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City of Denver

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L. Scott Tucker, Executive Director

December 12, 1986

TO ALL INTERESTED PARTIES:

The Urban Drainage and Flood Control District has long recognized
both the importance of drop structures; and the problems of design,
construction and maintenance of these facilities. In order to improve
the quality of the facilities being built within the District it is our
intent to issue revisions to the "Urban Storm Drainage Criteria Manual"
(USDCM) .

The District retained McLaughlin Water Engineers, Ltd. to assist us
in the evaluation of the performance of existing drop structures, and to
develop information and gUidance to be used in preparing revisions to
the USDCM. The attached document is the culmination of the McLaughlin
effort.

We will be evaluating the contents of this document for the next
six months before developing revisions to the USDCM. We would like you
to do the same and give us your comments. If you have occasion to
design a drop structure or review someone else's design, try to use this
document to see how or if it would change that design. Let us know what
you like about the procedures in the document and what you don't like.
Let us know what form the USDCM revisions should take, including how
detailed the criteria should be. In short, this is your opportunity to
tell us what you would like to see in the USDCM regarding drop
structures. We look forward to hearing from you.

Sincerely,

_<;~-t~L{L,--

L. Scott Tucker
Executive Director

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Note: This is a review document and does not represent official
policy or criteria of the District.