FLOOD05068

• County: Statewide
• Basin: Statewide
• Title: Colorado Flood Plain Information Reports
• Date: 1/22/1987
• Prepared For: CWCB
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Floodplain Report/Masterplan

INTRODUCTION

AUTHORITY

This report is presented as a supplement to the "Water and
Related Land Resources Management Study for Metropolitan Denver,
Volume V, Appendix H - Hydrology," revised January 1980. This
report was prepared by the Omaha District Corps of Engineers with
Fiscal Year 1986 funding and was conducted under the authority of
Section 22, Planning Assistance to States, of Public Law 93-251,
Water Resources Development Act of 1974. Section 22 provides the
authority for Corps of Engineers cooperation with the State for
assistance in preparing Comprehensive State Water Plans for the
development, use, and conservation of available water resources.
This assistance to the State of Colorado was accomplished through
a coordinated effort with the Colorado Water Conservation Board
(CWCB) at their request. This effort has provided the State of
Colorado with a capability that serves to assist them in the
administration of the State's Floodplain Management Program.

SCOPE AND OBJECTIVE

The primary objective of this planning assistance is to
coordinate the preparation of a "Compendium of Hydrologic
Information" for the State of Colorado. Information to be
included in this compendium was listed in correspondence dated
July 30, 1986, from the Colorado Water Conservation Board:

compile a list of all significant historical rainfall-
runoff events

develop isohyetal maps for the major historical storms

prepare discharge-probability profiles for studied
streams

investigate elevation-rainfall-runoff characteristics
for foothill streams

Preparation of the compendium is being coordinated by the Omaha
District to include all data from Sacramento District,
Albuqerque District, Omaha District, the State of Colorado, and
other agencies.

The Corps' publication entitled '~ater and Related Land
Resources Management Study, Volume V, Appendix H-Hydrology,"
revised January 1980 wi 11 be used as a guide for this compendium.

Status

Due to funding constraints, the effort to complete this
compendium was initiated in FY 86 and will be completed in FY 87.
The FY 86 effort consisted of compiling a list of all significant
historical rainfall-runoff events. This document contains the