HomeMy WebLinkAboutItem 4.7 Zone 7 Arroyo Mgmt Plan t
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: December 10, 1984
SUBJECT: Zone 7 Arroyo Management Plan
Initial Progress Report
EXHIBITS ATTACHED: Excerpts from Arroyo Management Plan -
Initial Progress Report
(Note: A copy of the complete Arroyo
Management Plan Initial Progress Report
is available for review at the Dublin
Planning Department and the Dublin
Library
RECOMMENDATION: Direct Staff to continue working with
Zone 7 in preparing the Arroyo
Management Plan
FINANCIAL STATEMENT: None at this time
DESCRIPTION: Zone 7 of the Alameda County Flood
Control and Water Conservation District has prepared an Initial
Progress Report on the Arroyo Management Plan. The report is
inte.ncled to be a background report with an initial inventory of
trail feasibility along Zone 7 flood control channels and
arroyos. The trails being examined are shown on Fig. 4 Trail
Feasibility Inventory.
The report also identifies draft Dublin General Plan policies
regarding creeks and a number of implementation scenarios for
further review. The scenarios identify various agencies that
might be responsible for developing, maintaining and patrolling
the trails and the flood control channels.
Staff recommends that the City Council direct Staff to continue
working with Zone 7 in preparing the Arroyo Management Plan.
-----------------------------------------------------------------
ITEM NO. 4- 7 COPIES TO:
Zone 7
r �
i
I
Zone 7
Alameda County Flood Control and
i Water Conservation District
Livermore, California
M .f
ARROYO MANAGEMENT PLAN ~
Initial Progress Report
i
i
I
Kent Watson & Associates
Landscape Architects -
1550 Pacific Avenue
San Francisco CA 94109
(415) 775-9153 iI
1
November 1984
I
i
I
I �
SUNM RY
The Arroyo Management plan is well underway and progressing on
schedule. The planning process began in mid-August with a meeting
between Zone 7 staff and the team from Kent Watson & Associates. Since
then over 300 miles have been covered during the site reconnaisance _
phase and over 50 agency and personnel contacts have been made
obtaining current planning and site information. '
The initial data collection indicates a strong demand for public
access along the arroyos. Local general plans call 'for natural
appearing and accessible arroyos. The .arroyos currently .being
modified for 'dedication to Zone 7 continue .to be,fchannelized and `are
restricted from public access. The paved trail'-along the Arroyo'Mocho
through Livermore is popular and receives steady use. ' . Almost =all •of - • •
the open arroyos .show evidence of continuous foot traffic (normally -in .`•:"�-:`trespass .of private property) and a few of the fences around Zone -,? �-
' arroyos have been vandalized to provide for access.
The concept of public access along the arroyos has received mixed =
reviews from adjacent private landowners. Several were contacted by
telephone at random and told of the public meeting. ..When informed of
the Plan process, their responses varied. Some were predictably
concerned about security and privacy. Others, who might gain
financially from increased traffic, were favorable to the idea.
The Arroyo Management Plan is being prepared at an opportune time.
There are many transportation related plans currently underway which
will influence land use. This plan will illustrate the opportunities
and constraints available for public access along the arroyos. Much
i of these data will be consolidated onto working maps and overlays.
The implementation ideas resulted from surveying other flood control
districts and discussing possibilities with local agencies. Many
options are available for construction assistance and funding.
Maintenance manpower and operation funds are available from several
sources but appear to be limited by location.
-The information gathered to date will be presented and discussed at a
public meeting on November 13, 1984, at Walnut Grove Elementary School
in Pleasanton. The input from that meeting will be combined with the
data to form specific plan alternatives. These will be presented in
the Administrative Draft Management Plan for Zone 7 review, and will
result in a Draft Management Plan for public review and comment.
D. Trail Feasibility Inventory
r Figure 4 is the result of intensive field reconnaisance. It
illustrates existing maintenance roads, underpass or overpass
potential, needed bridges and feasible new trails. It identifies the
maximum trail feasibility.. It does not represent a special theme. It
has not been limited by budgets or public opinion. It is simply a
starting point for the public informational meeting. It may be added
to, but more likely it will be pared down.. Out of this basic
inventory will evolve the alternatives, which will lead to a preferred
master plan.;
Legend:
Existing Trail represents paved trails along .the arroyos.
Double Maintenance Road identified those arroyos which have a
,maintenance access road parallel to and on either side of the
channel. They may be dirt, gravel or choked with weeds. They
may be at the same level or not.,
Single Maintenance Road identified segments of channel with
,. only one side accessible for maintenance vehicles.
. Potential Trail represents those locations reasonably well
connected to an attraction or tied to other arroyo trail
potentials such that it could become part of a larger network.
Inmost cases the arroyos are largely unmodified.. The
relationship to passable under and over crossings was =
considered as well as topographic and scenic desireability.
Some of the potential trails shown in Figure 4 are not
gcheduled for future flood control taprovements. For example,
Arroyo del Valle east of Shadow Cliffs and the creek east of
Chabot College fall into this category.. One should compare the
proposed trails against those in Figure 1 to understand the
difference., Sponsorship of these trails would be the
responsibility of other agencies (city, county or park
district) unless Zone 7 sold general obligation bonds to
finance the improvements..
.. Over Crossing identifies where under crossings were not
practical or possible thereby forcing through trails up onto
roadways.:
.. Under Crossing identifies those bridges or overpasses with
sufficient clearance to permit trail under crossings. The
lengths had to be short enough to light the way and give a
sense of direction. The elevation had to be high enough to
permit dry surfaces during most of the year to avoid recurring
maintenance expenses.. Almost all trails undercrossing streets
would also have connections to the street.,
Bridge Needed indicates where a trail may have to span an
arroyo to make a connection or change direction to .avoid a
barrier..
Point of Interest refers to a collection of recreational,
educational or civic sites that may be destinations for trail
users.,
MOM
IM I
t:- ryT
I
I
Y I I
- 23 -
` B. Administrative Structure' - Scenarios' '
. Following is ,an outline of various .scenarios which illustrate some of
the.administrative structure options which Zone 7 may adopt in order
to pmplement trails/parks public access proposals:
1. Zone 7 would create new staff positions in order to carry out
responsibilities to :develop,''maintain and :provide:security for
a trails/parks 'system along 'the'flood'control`channels; 'Zone 7
would`continue 'to 'maintairi flood control. channels.
2. Zone -7 would collaborate with EBRPD through contractual 4ry. e.
.� hY d
agreements',where Zone ;,7 ;would ;continue Ito`maintain'flood �_
control channels 'and 'EBRPD would 'develop,•I maintain and provide
r' ; .
security ,for trails/parks 'along flood control channels.
3. Zone�7 would collaborate with LARPD a6 with`EBRPD, bove.` y�` , .;
V/ 4. Zone 7 would collaborate with the cities'^of Livermore, "
Pleasanton and Dublin through contractual 'agreements where the
respective cities would develop maintain and provide security
for trails/parks along flood control channels within their
jurisdictions; Zone 7 would continue to'maintain the flood
control channels.
5. Zone 7 would collaborate with the cities of Livermore,
Pleasanton and Dublin through contractual agreements where
Zone 7 would develop trails/parks along the flood control
channels and continue to maintain the flood control channels;
the cities would maintain and provide security for the
trails/parks system. '
V6. Z6ne 7 would collaborate with EBRPD, LARPD and the cities of
Livermore, Pleasanton and Dublin through contractual agree-
ments where respective regional park districts and cities
would develop, maintain and provide security for trails/parks
along the flood control channels within their jurisdictions
and Zone 7 would continue to maintain the flood control
channels.
7. Zone 7 would collaborate with citizen volunteer organizations
where Zone 7 would obtain the necessary funds to develop
trails/parks along flood control channels and the citizen
organizations, through contractual agreement with Zone 7,would
agree to maintain and provide security for the trails/parks
system; Zone 7 would continue to maintain the flood control
channels.
8. Zone 7 would collaborate with citizen volunteer organizations
where the organizations raise the necessary funding for
trails/parks development, maintenance and security
- 31 -
("Adopt-a-trail" program) and would enter into contractual
° agreement with Zone 7 to work out specific design and
maintenance functions related to Zone 7's responsibility to
continue to maintain the flood control, channels.
9. Zone 7 collaborates with citizen organizations where Zone 7
would obtain the necessary funding to develop trails/parks
system; citizen organizations through contractual agreement
would maintain trails/parks system through volunteer labor
and/or paid maintenance staff financed through citizen
organizations (in either situation,I, labor -would .be supervised
by Zone -7 staff);• ri espective cities of "Livermore, .Pleasanton
and Dublin would provide security within their respective
jurisdictions 'and EBRPD .and LARPD;would 4pr'ovide� security in
unincorporated areas within" the ii,-jurisdict ions 'and the county
Sheriff's Department would provide security 'within remaining 'v i~;;..:
unincorporated areas Zone 7 :would continue to maintain the
flood control channels. .
Note that in all of the scenarios above, whatever entities are -
responsible for trails/parks system development and maintenance
may contract for free labor through the California Conservation 7,
Corps, California State Department of Corrections Parole and .." : . :.
- Community Services Division and the Alameda County Sheriff's
Department.
These above nine scenarios have been submitted to the Alameda County
Risk Manager for evaluation of potential liability to Zone 7 in terms :.
of estimated effects on insurance, risks, exposure and increase in the
number of claims resulting from multi-use trails system along Zone 7
flood ,control channels.
- 32 -
„�•��:': i1'.a .���.r., .t! N.'•7rK'\r' �A���r P i'T'rI -.;1 , A�'�`J V :[T• ! 117R'.��'S�.r_:�•”'
.7 - •I \w :,.t� •T..• .;L'.r�, J ::trw.L. r",•'r' }:�L-«>t.:>�. �I ., 't. +.,.p �l (- l, ��qqn.i, 1�;,�.
.,r,: .s. ((. •. 1 4 f F-�}--A-' , 14 '•r 1\r' .�7' y n:
d.
•�y •"(: tv, _(:,1 i, i'.:1+rAit•,C:....., v� .y; ,M:. �'ty!1'ihr T C rtZ. 1 `t'•Y:' :W;':i,
11 �. . r pp
I
k,
,` t
`'
�:.;
t
d \ Y
,, )
a�i' it '9.: '• x•1 s_ -fir'' ,2• ..t `S .s' .F
.
4`A !�
F
i �,:1 l ,sr
r tl 7.�� - E� •t'
'J:<- - F 'f:i t .:4. ajt.. +rte' ..y a+,z K .
`.� :..: •'j-`- •�`/,fQ :t -V.. :J'FT :-;-'�-q,, ,^-•. r- �'c ,r,• •,7;:.. _..._.�.._1_ , .i,.-I� �-- .4 '1 •.�
�J�. "fir.. 5
4 A '- • p
; yr,. -q.:: ,,:J. _._ > ,t.1: .•r _ _ ::�.i'. ,t:it i _•t'i?.,r„�i,•SiSti^' t. "Al I 1 i4 ::1•t9:?s:�. ',r 'Ett.
�.X7, •r✓ i.;]I ,(.�. r�r r,.t,,, .�"�� ,.�..:1-d •3:(t,�• �t is ,.i�'1,,,•!?t�. _ r .� ,1- ,_i
�../, �-,yr1,( I�-.Q'` - .•1:: - :�-;% .V.' :tj ::�,. .W. '.5. .;? s 1 K.`:.-,- .i ':;rr ;x�. .c:' ,*..+r�?i,�
•t rt./il7' '1`! - v, 4.'':. .t F l !"1. •1< .7' ri:_-, !: '1'} �ti+, Na':•
.IA 't_. / ! �-
,'T•` - ��i.Q ...._ _ ra. °+' =i: �r:=`-=eft't7:,. •-`''!: Sr .ti'a'9F♦""� .-.y %+P re.. ,L -
'-.®! :'«. O..r _ �" 't-:..• -� `:%`i'a+A / ". ..5'' ,1Yti.V- -7,aj�. t f" ..4_
C� •�:� �'� L`C+135 i>.:,ll -.A n - ' •yf. ( •,tt<;'F.'l2 .% ,a :•;;�' __ _ �! !,"E! •,
1. _ _^:'t� �: _._:.,�a..��QQ,� -. _ _.. .#�i>Vr'.._._ -,{.; l.N b _� -"�;. .��E�.rf,cr o?-.�+y� ,'+- _K` tOiGtO�...-s:QE
I r. .r •r• - ±.� .e... ...tv" •::f i_,•Yf ^,'y'r / - 1 der../,rJ:; as t ,'b', �vf �'.
t: 4 • ';_ TY4 -:= =f... Go l .:t;- �f5,."r 'r`�S�rtC�;:�,'""i'"�sr• 1. �...,_ , � Z z, ..r..
p
} �.
i.
t
y,,., Q X
�'r.�=-r,D'.;:.:. - : r.` t. / aj' N!�F� F:1/l '. , � pf J d O v�
_ ,.
. { ru: I ter+
- 'l: ,.mo ..- _rr -:_.,.�-'R� p'wi•s 'C r'T_...., �� .* 7.A :�,. .('i:r �_'iyd: �r••:;.;r p l. l� ::a' f "D-LL s..I.ch i.•
r�4.00. :�-1� -; - _ ,.m°"'z'..q"' ,, Qr.�..� --__ .Ir oy,4f/t 4- sf�.' -r. .J -.r, �P r ;{cn °,I 4.p
_ ? , i4. •~ �, - �.i+• - .� ._! tif- ,.(" 1-•; rITAS''L` \y r ^". t .'` + 4 gr:Z _y':FS,.�c�1.;
:. ¢
Q �� �m m� m � S:POS c' O
{ -2 . -_e _r• -• ft.. .%- . __+•"` r,. .- a'i-s.,.4 it ..�I ?' 7. 2.LOi t/� pr?r.�
�': r f r,,. .:'v,.^:L3�,A:,�- :�' a : i i. ic. �:..;: i t Q ?t.t
.11 - - oto - :Jr aL _ ♦ at w,: to > :;.. -"7 - r �.- t - '. 1� rte. ,n�•�f;,�� E{t
_ -��•J•.'i. - _ L .A gA.�tr _'PC, t--t"`_�.:�•'•icv J:'.�f �- .�i,:: _�, ,z:i' :�+.. Qt�,"t
L; _ - ;{sue }•J:. •,,�.. _', ,roger - },i:-r�,a-.; , __ -,.�.r•: > y- :C•,. t:
ti`i; ..✓•.lJ` r,.. - -�r� ♦: -:3•_%:n �•r� -S. �{.- Q.---, F- -t. -L1.1 W`�" 3..Y'+'
�.' - - �:.I.P' - lrr^atY¢" - '-':ril7 •:.•+•: 'Svc 'J': >'-��_. r,r%? r->>.��__- q. , �' `s.s
_ _4 t ♦. .,i,�'.. 1.e .� �' _ .. za: ? -- ,maser. 1
7 •titi•Q .': •-0 l.�K�.L'!- , - I� ^,I:c,1 �y3�ii.^rte: t"' ke,:; �L 'CA .ti:,;,. ,_ {; �r :�+•,;-.
i.` ' " '. i "rf4�' i ��--:^ .�r "� ..�. pCti{p �`��sy � 1, ;rC?r�Gy r` �j,' i °ig 3> w >•
. : - ,•" I_ :• -- •e z�� - __-��.�'.N�GMY,:iC�`. {.M +.. ..:.. i '•.t M.�. ., a` ..c,N ,, s .c, -.y.g.
•/ - - - - - ,`;-�':t .� '' Zvi ._.�.. d L 7 ',�•, / �'• ,. .ittt �Q.'L sP;. 'fi.-:i3..
- fHJ, ,.., ` �,rl.t '� -y.;.=,, L'lA S. •n. .;i.mr-.¢.: 'l h_ irr ,�. ai ..f i /' ,.0 '-:..n. ♦'�:. *L r,:. Yr'�°'y'"t:s'F
-`.:: �� F:t^V tt- lCy� U.. - ,l LnrrC .tit 1 �ti':-AA :^fr.S- ,s- *_f�-
- ,Y _
v..
-i- .i•` _4l. ..:?i r'. [' �I' :r. i_.I%_y�'a.,�1' �''�" :k•.;17{r .k'JrJ7t , �c ;f�... .�.J. SI i:;"'! ..-s-.ur_�-'sS'
y �:r ': 1_71 Ji:_=t! ii(a��l/ / Ll tu; nr }� 4 - �a
_ P
s �.
-- u. -i e 04 •.vi�.��r 0 rrt.* t i ^ ,'f-i>' � tom,( Y�blXi'son a�' % -w11?tu"ier,—' �, + yi c ��K.
•f! •'• -• ,r<�. `.L[' Y'YMJ T� i •::J...., !<n.\^ . 'r _-.y�,- it. is :. - _ ` A-5.J20 .yt
- /,`1Jl ,. '.r.,. (r �' n a•_J_. {J -"-R.1._p�•.,,r� ?2 b.;a .'r. �/� Sv:
A V�.Or (�Bil / (=,/.- .t`..'/ i s - v.�.,.... i_ ,.W n"Xk„r:.1,;7ti '.fJZ•.:til .'eL`�.¢
- �E— ^{j`: r%Gi_i1i ,- .�, - _�: �-i, :F+A�s,,..r 7.. .: ', ;_ ,�, r
y _ M, ,!/ .., 'K - Y'f t I r T ':' O :-r'7 ti ,J¢ Yt i i�.ay.
.t J{:.t f;:;> C.e.,-j •�/^`':Jt.�. _.�• __.`_._:'",_*' ,� cc art ,•`.:/ :•O D- at
•'ti r--. - .�..�,' :!'+_ - :,, :, :ice 7 '9 °i, t.i}�.� i �. 1 1.: .�: - M;
,b`:' „i`t 3I -v-sI- 'S,- x.A '� Q--..' .r� .1'.t d:::+'.'X =t.,- -1 (� J?;q i
,: - :� :/ '.i`"'-` N' +=.', .mac,.-xP ;HT•r'•; '.�• .r • =//.• .- f-K.7,
t. L� i .e \.' r+ -
S �% _¢J`. - L`i' n1, it2 :,:::, `j ';1 .-4 J, .4're•-tL !r`: _ ,-a_ •,�:. ,..�g,Rt.
I-1--• _ ...f , ',r,;':T-,r.Y \ '�aA�"i`.+'r.:< :1r I� JJ�.,. • �' -k f:..a fa, ` ¢f.':^¢,».*r'.e F: ,j?:� t< .1.--, ,, � 'vi {S
r J., i;.t�t A::.- r p:. I- .�^ t €. h i.; ry r r:' ' e z�,. ,. ,{i S% k
^_�, p r 1? r::A:7t- .:c:: h',rte !Ai:t.; �:_s y.:!_ - s-' R F-'r,
P. r v" 7 10:k 22
„It :l/ t' I_ � �. !. 'r.dA t I` ..e./•Y•'v1i S -.`' UJ
tt,,__ \ i..�� � /. v')r-r..J trCi i' - :Y .U'. r S Ty ..: :,. J,', �` tt a? :n bZ Y(
-„/. ° {: _tr ',i;::' rri• -lr.• I R+ti=�-.I...:- ,.V.3'..e - <-q�t �.;._F.
•,: .r: .T`-!i �'G..��.LSr•,,, - _ i`,-t�--�, kl,a..)., , �`'' ;lw..+,•F,-a �.� •l:,r•w - .ft 'ir. =eL .o.�
T _�' .'i'it" J O•: .-.7^... .i J +r��c.. :1, ..hs?A.:- ..�k:`, l.:- _.7.. y 7:r Z a L
'I.Jr' {- -'L .,R t` '1;;.. _iS ^.� -.t -%: .l':'.M/!•F`= :. -yu.., }�,: ,.':K•. �..
`+ ,.i•' ./ ,;r , .ii" r,{•r _1 t + -, i `'V,-:3,r..., 1 +�, t�.t-. ?:- It a .> L o, •�''tr'�s dsW
.t ' *e. 7 _. ..i_.p,,..iV -s •:•-?=' A.� .!. "lt"r1 -,t VtC.Ylefr %r wr .,�,.-.. tr :5^ .E. -'S�.:y.;:�i`',,.` Wit- r;?. -r:,. s -M
r.. Ef'.t•g±i`. t:} j_ ) !^: ( i•1 1 •_n,' �.^..1. '�N. t�r,,, ,,`9: - _ . t
:% r > r .
_ , -, .R ,r ,,,,t:
t.- : r,I.:t T. i ,j`•4.,r ',,'- V\C"� %-'4::..''- 'A - n W,/; _�'^, r V: -Y• _ -'-t A 4_
i. ,
l }... _ .,�, -ti' a.
;i.:'_1 r1' >1 1 ••,- :r. _ �:.� :}:• �s .[ �f t ;;i.;- rr ,,". �<<,,-.-'t<{ '+,,'!t•'_,:° ;x' 1;.'ei••i: y L ?id• _
^:4; 1.7t.::L.'• - •'y' .G•.:-,.,Y7�t .i. r `%f�:i.:: S -d• .k:• ,,r.>.: .-.., `--:. .� K.• ri ,tr
r� IIti.:-,. r: - - 7;•. .� ^�:, - :�. - :fi r ;'4L ✓t'..,, T �. F'�3. rf .v-,_ :rC, ",`Xt°"•`+'''f int•• :ai .Sr. •t ,:' ,4r:'.
k:.��_ `.!T-'" _- s vti - ? ,t f Y.,'Y�i- •y "`�sr r i .st' i?r:.t. ra'�+r._. ,\\�`'r^ .:u-.^%-.. __>ftl: 'y'__`.`.
�. �_ '><\ .� •y•.Y'r1, }•.r .•",:•':/"",,,, l .:.".�,t'•7:`- u3 ..}9,;t t ti`• ..ts .;: - ]_,,•A.
• • '•L'. tl::['S: :}:t �ylr