Powerline Plan and Environ. Assessment Jan. 2013 - Flood Control ...

Powerline Flood Retarding Structure
Pinal County, AZ
Draft Supplemental Watershed Plan
and Environmental Assessment
ITEM/CONCERN
Table 3–1 Evaluation of Identified Concerns (continued)
Relevant to the
proposed
action? 1/
RATIONALE
PLANTS
Natural Areas X No natural areas in study area
Riparian Areas X No riparian areas in study area
Forest Resources X Not Applicable
Parklands X None Present
Vegetative Communities X Mesquite Bosque located upstream of structure
ANIMALS
Fish and Wildlife
Habitat
X
No fish present in study area. Mesquite Bosque
habitat located upstream of structure.
Threatened and
X
Endangered Species
No occurrences in study area.
Invasive Species X Minimal invasive species present on study area
Migratory Birds/Bald
X
and Golden Eagles
Potential habitat for western burrowing owl.
HUMANS
Aesthetics X Structures are significant features on landscape
Flood Damages
X
Substantial downstream damages from
flooding from catastrophic dam failure is no
action taken
Action will require significant expenditure of
X
Cost, Sponsor
funds.
Action will require significant expenditure of
X
Cost, NED
funds.
Historic Properties/Cultural
Resources
Environmental Justice
X
X
Cultural Resources have been identified in the
vicinity of the structures.
Minority and disadvantaged populations are at
high risk in the event of a catastrophic failure
of the dam if no action is taken
Local and Regional
X
Structures provide flood protection to
Economy
downstream benefitted area.
Scientific Resources X Not Applicable
Potable Water Supply X No potable water system within study area.
Public Health and Safety is at high risk in the
X
event of a catastrophic failure of the dam if no
Public Health and Safety
action is taken
Recreation X Opportunities for recreational elements
1/ Concerns relevant to the proposed action must be considered in the analysis of alternatives
USDA- NRCS Page 3-3 January 2013
Kimley-Horn and Associates, Inc.