BOARD01709

• Board Meeting Date: 5/3/1985
• Description: Agenda, Minutes, Memos
• Board Meetings - Doc Type: Meeting

,

J

I~ :s t~e 9osition of ~:Ie ~a5i.:1 st")':'~s -...~~- c:--.~

.

Secretary's analysis of the one-in-one-hundred-yeac :~'l~'

:low should represent a realistic one-in-one-~undred-~ear

probability of such flow occurring in any reach of the river

at a given time, and should not arbitrarily assume that one-

in-one-hundred-year inflows from all tributaries occur

simultaneously. It is the nature of weather events along the

lower Colorado River, a desert region, that most rain storms

occur as small, localized but intense thunder showers that

would produce floods from only a fe'.. tributaries at a time,

and the Secretary's study should reflect this. To ensure

that this technical matter is made clear, '..e recommend that

Section 5 (b)(l) (H) be amended to read as follows:

"(ii) define the specific boundaries of the
Colorado River Floodway so that the ?loodway can
accommodate either a one-in-one-hundred-year river
flow consisting of controlled releases and
tributary inflow, or a flow of forty thousand cubic
feet E'er second (cfs), whichever is greater, from
below Davis Dam to the Southerly International
Boundary between the United States of America and
the aepublic of Mexico."

.

Sec. 6. This section provides the restriction on future

Eedera1 expenditures within the floodway necessary to

3ccomplish the ",urpose of the bill as set Eor th in Sec. 2 (b).

Any individual who wishes to risk his personal funds by

constructing a development \'lithin the floodway would not be

?rohibited from doing so by this bill. However, the bill

pr':lhibits any such potential developer from participatLlg in

::;1era1 programs that :nay :lid his de'leloDment and puts him on .
-15-