FLOOD02948

• County: Statewide
• Community: Statewide
• Stream Name: All
• Basin: Statewide
• Title: Flood of 1997: Hazard Mitigation Team Report in Response to DR-1186-CO Flood Disaster in CO
• Date: 10/1/1997
• Prepared For: State of Colorado
• Prepared By: FEMA
• Floodplain - Doc Type: Flood Documentation Report

RECOMMENDATIONS:
. Identify communities flooded in 1997 and other communities where
urbanization appears to preclude fully non-structural approaches to
flood hazard reduction;
. Identify non-structural measures that would contribute to flood
hazard reduction in those communities and the constraints faced by
the non-structural measures;
. Identify structural measures that would substantially enhance the
effectiveness of non-structural measures in those communities;
. Seek multi-objective and multi-discipline design support for such
combined structural non-structural projects; and
. Seek funding (federal, state, local and private for final design and
construction of such projects)

LEAD AGENCIES:
CWCB, DOLA, local jurisdictions, private planning consultants, private land-
scape architects, private consulting engineers, FEMA, COE, NRCS

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FUNDING:
FEMA, COE, NRCS, CWCB, DOLA, local jurisdictions, special districts

SCHEDULE:
One to ten years

INFRASTRUCTURE

ISSUE:

1-1 Lack of outlet facilities in ditches and canals

BACKGROUND:

Irrigation ditches and canals tend to intercept storm runoff and convey flows to
adjacent basins. A breach in the ditch bank con result in flooding areas that
normally would not be affected.

RECOMMENDATIONS:

. Equip ditches and canals with outlets to ollow releases into drain-
age channels capable of safely conveying flows
. Establish overflow areas to accommodate the flood flows
. Consider upgrading structural improvements where creeks and
drainages intersect irrigation ditches

LEAD AGENCIES:

Local jurisdiction, public works departments, ditch companies

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