FLOOD06619

• County: Statewide
• Community: State of Colorado
• Basin: Statewide
• Title: Federal Guidelines for Selecting and Accommodating Inflow Design Floods for Dams
• Date: 2/1/1986
• Prepared For: State of Colorado
• Prepared By: FEMA
• Floodplain - Doc Type: Project

(~) Social impacts. - In addition to the loss of life, social

impacts which are important but cannot easily be evaluated in

economic terms include: impacts on real income; impacts on health

and well being of individuals including physiological and physical

injury; impacts on cOl1lllunities (both family and larger cOlll1lunity)

including destruction of educational, historic, and cultural facil-

ities and values; and general disruption of a way of life.

(3) Environmental impacts. - Environmental impacts which are also

important but cannot be easily evaluated in economic terms include:

loss of wildlife and habitat, detractive visual qualities, loss of

recreation and fishery and riparian habitat, and extreme change in

the channel regime.

(4) Economic impacts. - Evaluate damages to: residences; commercial

property: industrial property: public utilities and facilities

including transmission lines and substations; transportation systems;

agricultural buildings, lands, and equipment; dams; and loss of

production and other benefits from project operation.

d. Defininq the hazards. - The degree of study required to define the
impacts of dam failure sufficiently for selecting an appropriate IDF
will vary with the extent of existing and potential downstream develop-
ment, the size of reservoir (depth and storage volume), type of dam,
and the cost to essentially eliminate the likelihood of dam failure
from hydrologic events. Evaluation of the river reach and areas
impacted by a dam failure should proceed only until sufficient informa-
tion is generated to reach a sound decision or until a good understand-
ing of the consequences of failure is reached. In some cases, it may
10