FLOOD10253

• Designation Number: 319
• County: Jefferson
• Community: Arvada
• Basin: South Platte
• Title: Flood Insurance Study - Arvada, Colorado, Jefferson and Adams Counties
• Date: 2/19/1992
• Designation Date: 3/1/1992
• Floodplain - Doc Type: Floodplain Report/Masterplan

FLOOD INSURANCE STUDY
CITY OF ARVADA, JEFFERSON COUNTY, COLORADO

1.0 INTRODUCTION

1.1 Purpose of Study

This Flood Insurance Study revises and updates a previous Flood
Insurance Study/Flood Insurance Rate Map for the City of Arvada,
Jefferson County, Colorado. This information will be used by the
City of Arvada to update existing floodplain regulations as part of
the Regular Phase of the Nat ional Flood Insurance Program (NFIP).
The information will also be used by local and regional planners to
further promote sound land use and floodplain development.

In some states or communities, floodplain management criteria or
regulations may exist that are more restrictive or comprehensive
than the minimum Federal requirements. In such cases, the more
restrictive criteria take precedence and the State (or other
jurisdictional agency) will be able to explain them.

1.2 Authority and Acknowledgments

The sources of authori ty
National Flood Insurance
Protection Act of 1973.

for this
Act of

Flood
1968

Insurance
and the

Study
Flood

are the
Disaster

The hydrologic and hydraulic analyses for this study were performed
by Greiner, Inc., for the Federal Emergency Management Agency
(FEMA) under Contract No. EMW-83-C-1l73. This work was completed
in July 1989.

1.3 Coordination

On April 25, 1983, an. initial Consultation and Coordination
Officer's (CCO) meeting was held with representatives of FEMA, the
City of Arvada, the Urban Drainage and Flood Control District
(UDFCD), the Colorado Water Conservation Board, and the study
contractor. Coordination with City officials and Federal, State,
and Regional agencies produced a variety of information pertaining
to floodplain regulations, flood history, and other hydraulic and
hydrologic data. Because of a number of unexpected problems with
the contract and study preparation, a lengthy delay resulted and a
"restart" meeting was held with the CCO and the City of Arvada on
February 23, 1987. This meeting was held in order to get the
project back on track and to revise the stream study limits and the
level of study detail to be performed.

The City
contacted
study.

of Arvada, UDFCD, and FEMA Region VIII office were
and supplied information used in the preparation of this