FLOOD00281

• County: Larimer
• Community: Greeley
• Title: Design Criteria and Construction Specifications volume 2 of 5 Storm Drainage Criteria
• Date: 10/1/1997
• Prepared For: Greeley
• Prepared By: Department of Public Works
• Floodplain - Doc Type: Educational/Technical/Reference Information

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SECTION 1.0 GENERAL

1.1 Purpose

The purpose of the "city of Greeley storm Drainage Design criteria"
(hereafter referred to as the "criteria") is to present the minimum
design and technical criteria for the analysis and design of. storm
drainage facilities. The criteria may be amended as new technology
is developed or a need for revision is demonstrated and proven
through experience and use.

All sUbdivisions, residential, commercial, industrial development
or any other proposed construction submitted for approval under the
City of Greeley regulations shall include adequate storm drainage
system analysis and drainage system design. Such analysis and
design shall conform to the criteria set forth herein. options or
alternatives to the provisions of these Criteria may be suggested
by the applicant, and used only on the written approval of the
City. The applicant must demonstrate through adequate information
and technical documentation that such options are equal to or
better than the requirements of the Criteria.

Policies and technical criteria not specifically addressed in this
document shall follow the provisions of the most recent edition and
revisions of the Urban Drainage and Flood Control District
(hereafter called the "District") "Urban Storm Drainage criteria
Manual" (hereafter abbreviated to USDCM), which is incorporated in
these criteria by reference. copies of the USDCM can be obtained
from the District, 2480 West 26th Avenue, suite 156B, Denver,
Colorado 80211-5500.

The applicant is also referred to the Colorado Department of
Transportation I s Standard Plans ("M-Standards") for additional
design details not covered in these Criteria or the USDCM.

The criteria shall apply to all land within the incorporated area
of the City of Greeley, and those areas outside the city of Greeley
covered by intergovernmental agreements with the appropriate
jurisdiction, including any public lands. These criteria shall
apply to all facilities constructed on City Right-of-Way, easements
dedicated for public use, private roads, and to all privately and
quasi-publicly owned and maintained stormwater detention
facilities.

1.2 principles for Storm Drainage planning' Design

Planning and design of all stormwater drainage systems should
adhere to the city of Greeley ordinance No.5, 1995, which
established and enacted Article 14.15 of the Greeley City Code.
Article 14.15 of the city Code establishes a comprehensive
stormwater management program.

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