HomeMy WebLinkAboutAGENDA REPORT 2011 1005 CC REG ITEM 09B ITEM 9.B.
CITY Y OF MOORPARK,CALIFORN a
City Council Meeting
of /0 -0 5"080�/
MOORPARK CITY COUNCIL A"' M-e4' Attee
AGENDA REPORT
TO: Honorable City Council
FROM: Dave Klotzle, City Engineer/Public Works Director
DATE: September 23, 2011 (CC Meeting of 10-05-11)
SUBJECT: Consider Finding Proposed Buttercreek I HOA Retaining Wall
Replacement Consistent with the PC-3 Mountain Meadows Specific
Plan, as Amended
BACKGROUND
On March 21, 2011 the City became aware of the retaining wall and slope failure on
Buttercreek I Homeowners Association (Buttercreek I HOA) property along the south
side of Mountain Meadows Drive between Chestnut Ridge Street and Walnut Creek
Road. The total length of affected wall is approximately 1,800 feet long and includes
sections that fell completely over, sections that remain leaning and the approximately
200-foot section that had been repaired several years ago which has not failed.
The City right-of-way line is just behind the curb on the south side of Mountain
Meadows Drive, therefore the majority of the sidewalk and all of the trees, landscaping,
retaining wall and slope are within Buttercreek I HOA property. This was the standard
for the collector streets in the PC-3 Mountain Meadows Planned Community approved
by Ventura County prior to incorporation. The public has access to the sidewalk by an
easement. The HOA is responsible for the sidewalk and landscape maintenance.
The City directed Buttercreek I HOA to close the sidewalk and failed wall area, and to
protect the slope from further erosion due to rain. The City also required a site
investigation and submittal of a report ascertaining the extent of retaining wall and slope
failure, and any resulting impacts on the adjacent residential properties. Buttercreek I
HOA was notified that geotechnical recommendations and engineered grading and
retaining wall plans would be required to obtain the necessary permits to repair the
failed wall and slope.
S:\Public Works\Everyone\Reports\Staff Reports12011\October\10-05-11 (Buttercreek I HOA Wall-Finding of Consistency).docx 7 2
Honorable City Council
October 5, 2011
Page 2
DISCUSSION
Buttercreek I HOA has submitted their initial investigation report with general
recommendations for the wall replacement and slope repair. The report included the
determination that the adjacent residential properties at the top of the slope did not
appear to be impacted by the wall and slope failure. Monitoring of the properties will
continue throughout the wall and slope reconstruction process.
The proposed repair of the wall includes constructing a new wall located a foot or two in
front of the existing wall as shown on the attached sketch (Attachment 1). The top
several feet of the existing wall would be removed and soil would be imported and
placed behind the new wall and on top of the remaining existing wall. The Buttercreek I
HOA prefers this alternative in that the cost of completely removing the existing wall and
cutting back the slope during construction would be avoided. The proposed repair
includes the installation of proper drainage facilities behind the new wall.
The existing sidewalk location along the subject wall transitions in several locations from
immediately behind the curb to just in front of the wall. If the proposed new wall is
placed in front of the existing wall, about 1,000 feet of sidewalk that is currently adjacent
to the existing wall would be removed and replaced immediately behind the curb. This
would require landscaping including several trees to be removed.
Staff recommends that replacement landscaping be installed between the proposed wall
and sidewalk including trees at a one-to-one ratio if there is sufficient room based on the
final design. If there is not sufficient room between the sidewalk and wall, an alternate
location for the replacement trees could be identified within the Buttercreek I HOA
boundaries.
Community Development staff has investigated the entitlement documents for the
original PC-3 (Mountain Meadows) Specific Plan for the subject area. The plan calls for
the sidewalk to meander within the landscaped parkway alternating from one side of the
parkway to the other. Under the proposed wall replacement plan, the sidewalk meander
may be less than the existing condition; however it would still be overall consistent with
the Specific Plan landscape design (Attachment 2). Therefore, it would be appropriate
for the City Council to make a Finding of Consistency for the modified location of the
sidewalk and landscaping due to the proposed wall replacement design.
FISCAL IMPACT
None
S:\Public Works\Everyone\Reports\Staff Reports\2011\October\10-05-11 (Buttercreek I HOA Wall-Finding of Consistency).docx 73
Honorable City Council
October 5, 2011
Page 3
STAFF RECOMMENDATION
Find the proposed Buttercreek I HOA retaining wall replacement along the south side of
Mountain Meadows Drive between Chestnut Ridge Street and Walnut Creek Road
consistent with the design set forth in the PC-3 Mountain Meadows Specific Plan as
most recently amended.
Attachments:
1. Proposed retaining wall
2. Landscape Character for streets in Mountain Meadows Specific Plan
S:\Public Works\Everyone\Reports\Staff Reports\2011\October\10-05-11 (Buttercreek I HOA Wall-Finding of Consistency).docx 7 4
Attachment 1
Reitt D(fr ¢-f,ee✓ a 4.-C
144(..14 9.1,'iily L9/( r-a
i 14 kr-fer-e-, cA'irtt
//.
tdAll
/ ,l' 'Q
LeAlica,A4.9
gO.," isileA, ,A,k ,, RittPU 11/4.;oil
/ 'at. 4(t4 icj
d a�/ ,
44 t / W l� ✓o
.,.• / 1
teCal'r
/
♦ tpv .,„-I-iovi
- r y - , , Wu 1( ,-o fhtca 14
o
4(ocA-f a fileom t `�0
14 a(o.n 1 C K.r S W h.21-Q (22µove i n 4e-r4e--'i 4S rt.,�'ti 6 ter✓
. 1'1-iny J(/J4,!/4114 ri oT QJ1�i.r¢7R., ✓i66 K/4(k •
Qdja.G.Pn'- +0 �6ciIJ�CY LJ'�1
Proposed Buttercreek I HOA Retaining Wall Replacement
Not to Scale
75
. .
1, • . -.--i— ----i• .............„ .......„,..,,„ .............
imin laileten . ••• 'Z'.1.'It'/..',''').
■N ; ,:..-..:c. ' f;';'' ...."Min env Me
....--\' •- --,...
. .
N.,5, . .6,..I. f•,,,,6.41.n !fc,rd lime erctim re. zyt
tr54?4,4..
. • er.,....rtw, --.........
F TERRA FIEJADA
16 IL .4.4-r*riiO4,---
.„,.l.ra P.,■1,
••,•r..."...,114•■•ryIY.11 t 694* 'r'''' 111"10
. • 24'tb.', 404'1' 41;
..VI.' •-•.,.. ■ ''\'4:..i. i lti 4 1.1.1!"w V4
, '--,‹.. ." . .,,INP.e,14 ,•,sird.—. it Yistilltre t )
4:;•4.:':,' .
'• 's 1/' ' .'''' '‘,,,t11,.:. ,SI 1 ' 411111/
40
— • VI 3. 4,":-4..i_
Vi lit '...•.
. .
iri4a. .
S.r:Ltft't,j_LOI.0 •
v,,,trerr•ne..-...1*.r
AO
2. COLLEgrOR pAHIf,onur,
/PI
4. ■.1.461 i.l..3
it'• -1-10
---, .
ITYRCIL 0,1MaLE- ALLY MC,.CHK771tiFi &111.4•
('..::. ' . 9TRigHgPlaUnIrgOM @OL-JACIrOn P.011Kie
N..Z1111327__COLLEC7OR
MOUNTAIN MEADOWS
MOORPARK - VENTURA COUNTY
URBAN WEST COMMUNITIES
L. AK D 6 APE Cif L 1-D AC 7IE R .
• . McReynolds Environmental Group
rri......,........................
mele.'now
',rand Aeol 2,r1r5
.....6nli•4■1 e,no I rr
CD SI.)
C.)
I-,
• 0 (D
I--1)
rt
t.)
.....3 N..)
01
-it !t►�-' 1 < �� ®e) \ ,
4 ' 1
\ \:,
. 4'. ' 1 It . N CI . Ili? It 4)
• dna "T�.�.1 : 1111 .•.
el 1 I .. 0 s 4- L
O D
,., ...,,,,,, .46.4 .,:,,,,,5 ,
rl 0
b ,:,
W rt
___________ , LQ rr
(D Al
n
N
O N
rn
rr
N
N
J