2011-06-30_REVISION - M1981302 ‎(14)‎

• Permit No: M1981302
• IBM Index Class Name: Revision
• Doc Date: 6/30/2011
• Doc Name: As-Built Drawings of Perimeter Levee- Apps. A,C,D & E.
• From: The Regents of Univ. of Colorado
• To: DRMS
• Type & Sequence: TR8
• Email Name: MAC
• Media Type: D
• Archive: No

.DUI I ■ 19. iO:33AM L RIC E NGRS NO-167 P . 3
2
Est 26 1ei. indicates Sp ecial eei Flood Haz Area ( UH4 , the area that would b
inundated by the base Mood, abuts
anatwW gr ound along the r niddle reach (approximatel
1,700 of the levee. We ag ree with that otermination; therefore, this section of the levee
does not need to me et th e requirements of Section 65 , 10.
tat that the downstream reach (the downstream 1,250 feet) does not
The august report a
et all o f the req u i rements of Section 65,10 at this time, and WO agree wi that
ll �rhe downstream reach does not meet the requirements for
d e t er mi na t io n, S pecifically,
freeboard and m ainten a n ce. The rep states th at this reach of tie levee has not been stud
to determine if other requirements o f Section 6 5. 10 can be met
Item :
ee "c th d o wnstr e am ui of the Ieve dogs x t meet all of thv re lments f 65. 10, a
' b-initted before we cau evi a the MM to shoes► th .t the upstrearr�
a ddit i ona l data mast be ' f the
ro rides roteot from the bas fl ood. requested in Item 4�
reach f th levee p . w
ride the existing co�n&tions topography and h dr IOgic and
April 1tter, pl�e pro � � x � i � e
neces to ruse the effective Fes. ThD existing conditions aria s
h aalses � down 1 e ale lation to determine the base flood elevations (B if th rr�ust ink � include t he
of the levee will fail. The existing onditious topographic information must
rem t .ie existi
eaticn for this "without levee' scena o. Please ensure that
FHA bounds delm a
c onditions meet the re cement of Paragraph 65.6
h and hydraulic analyses �
of the TFIP r This par states that to avoid discontinuities been the
revised and wnresed fl data, the s bitted hydrologic and hydraulic analyses must be
'
e enough to ensure tha a logical transition can be shown between the revised BF s,
boon delineations and those developed -T. and tod.v boundary previously for areas not i
eterr nati c the effects of the levee certification o the
affected b the rev�s1or�� ' d
F IRM can not be proces un til the e conditions hydrologic and hydraulic analyse
. topographic mapping are submit d,
Its
• iUen acknowledg of the revision request from both
�� req that o provide v�r
the City of boulder and Borg County. . We received copies o your Yune 1, 2000, letter to
'tt ao�o led n In r t gist the City and/or
each co d t r , es g s uch � g
' a of a ro mot, a can continue
the Count do not provide witten a kno 1.
� • � he ��' reg ulation s.
ce i this re quest through the provisions of paragraph 65.4 o �
p s � � � is requested end resod by a
Paragraph 65.4 states that if written acknowledgement �
� p i �en e i ro�rided that indicates
Community, PE A. can proceed w ith th e request � p
went has been requested of the comm , Therefore, ate 5 m our
i�ht the ac q
April 3 leue r has been satisfied.
Rem
We are amore of the on miti study that is being performed as a cooperative effort
o the Universit of Colorado, and the Urban I rainug
b e arty of Boulder, Boulder unt . • t .
on
' D We understand that the focus of th m study is to
and Floyd Con �s to hydraulic
h ydrol og y f the area and that limited resources will be allocated
deters the ,� � aid
at es and food lain m pp We encourage you nor. with the co sp on � to
au p p