HomeMy WebLinkAboutResolution No. 98-16 f .
RESOLUTION N0. R98-16
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
FRIENDSWOOD, TEXAS, PROVIDING FOR THE ADOPTION OF
THE COMMUNITY FACILITIES AND DRAINAGE ELEMENT
OF THE PROPOSED COMPREHENSIVE PLAN, AS RECOI�SENDED
BY THfi PLAPTNING AND ZONING COMMISSION, SAME TO BE
A PART OF THE CITY'S COMPREHENSIVE PLAN.
* * * * * * * * *
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FRIENDSWOOD, TEXAS:
Section 1. The Community Facilities and Drainage Element of the proposed
Comprehensive Plan, a true and correct copy of which is attached hereto as
Exhibit "A" and for all things made a part hereof, is hereby adopted. Said
Community Facilities and Drainage Element of the proposed Comprehensive Plan
shall become and comprise a part of the City's comprehensive Plan, as
recommended by the Planning and Zoning Commission, prepared June 1995.
PASSED, APPROVED, AND RESOLVED this the 1St day of June , 199g,
_ `
Mayor Harold L. Whitak
City of Friendswood
ATTEST:
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Deloris McKenz e, MC
City Secretary
R98.16/LST03
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�r�`''" �� ' Enclosure to
, L, �� !fC/95/093 (1)
. .a:::
DATE: June 15, 1995 A`h�E���4��:��2�,,�
� � ``'�
�: May�r and City Council ,� �/�,,, , r'�
9 v,
b� � �nrlf���� 9 �S ^
��OiM: Benny Baker, Chaas F ' ''`•,:p ,�
C�:i::.
Planning and Zoni1'ig �SSion � �7}',�;;�J,�y�OO ,�
� '"�yG�j '�a
SUBJDC.'T: Ccx��rehensive Plan �9 ...:J�,�
S��G 1 '�,,
As ca�e near t-he ooR�letion of our preliminaiy work on the Ca��rehensive
Plan we wanted f,o share wi.th you our thoughts about where c� are and
where w� believe we need to g� to oonclude this process.
We have approached the devela�rnnt of the Plan wit-h a team oonoept in
mind. There are five �rs on our "te,am", all of which have active
roles that will oontinuaasly overlap, but that may also require
;*�;vidual tasks at oertain stage of the process. Our "players"
c�sist of the City Covncil, the Planning and Zoning CaRmissi�, the
City Staff, the Consultant (J.T. Dunkin and Associates) , and the
Public. We also have sa� bench players that fran time to time have
been asked, and hopefully will continue to be asked, to step up and
oontribute infonnation. These have included, but not been limit�ed to,
� the FISD, the C�,amber, the Volunte�s Fire Depart�nt, and the private
utility oampanies. Once the• public hearirx3 prncess starts, cae e�q�ct
more artside involveme�it frocn other sovroes.
Folla�ring along with the sports analogies, the first step in the
p�ss has been to "set the table". Any plan has to have a starting
point. We relied on the oonsultant to deliver to us a series of
technical information, statistical facts, maps, etc. (examples are
attachedj�. From our perspective, that was the only ftuiction we
� frorn the consultant. We then took fhat information, made
re�rns�dations to staff, and then instructed staff to make the Plan
ours. We wanted to give it life, to make it readable. We d.id not want
it to sound like a dictionary or an encyclopedia. We felt it
unreasonable to �xpect a consultant t�o produce a doc�u�nt with the
subtleties and nuanoes of a pa.rticular canrnutity incorporated in to
that doctm��t.
We believed that prel�mi_nary distri.bution of the technical draft would
cause individuals to lose sight of the content and the purpose and
instead focus on the lack of "personality" of the dociarnnt. This is
the primazy reason behind asking staff to edit the draft.
~t
Our original projected date for cat�letion of the draft stage was
De�ber '94. We needed a time, that is what w+e used as a target. It
became clear in the m�nths preceding December that w�e wc�uld not reach
that goal. We �cperienced discrepancies in poExilation nwn�rs,
inforn�at-ion fram t-he '90 Census, acreage amounts of land in use versus
�`�. ' ' ' Y.:' � � f
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vacant land, perc�ntages of land in each of our districts, etc. These
were technical d.iFficulties that w� oou]_d have just averlooked arxi g�e
� on with our w�ork, We chose not to do that. We felt it our
responsibility to detenni.ne w�at caused these d.ifferences and to then
use t-he cozxec� data. bo forn�ulate the draft. We did not ooncentrate an
typo's or ofher qramnar related mi.stakes during this process as we w�.�
more anterested in Yhe facts. We kna�r the fanal draft version wntil,d
address these ooncerns. We have included examnles of the d�s,
outlines, illustrations, efi�c. that will shaw you how this prooess has
ev�olved. We felt it was taore �n�rtant to be right fhan to be fast.
We believed that .you would feel the same way. We have sinoe disc�vered
t-hat a typical oa�rehensive plan take$ fro�n 1-2 yeas.-s � oon�lete and
costs anywhez� frnm �100,000 to $250,000 when c�onsultants a�+e
involved. We feel gor�d at�out the way we have a�ssed both with oc.ir
prooess. The t,imeline is simil.ar bo othez-s, the price is oonsiderably
less. Staff involv�it was pait of the negoti.at�ed price.
We have a workshop session scheduled for June 29, 1995 �o review aur
finalized draft. At that tirc�, barring no unfornse�n prabl�ns, w� will
request a c�rlcshop wit-h Council to start the seoond phase of the
develo�nt of the P]_an. Although the prooess will be fhe same with
Council as it was with us, it should take less. tim� due t�o the work �
rhat has been done on the technical issues. Goals, abjectives and
direction will be the key issues we hope to address with Cozancil. We
will give you what we have det�snined �o be the facts, sane
recam�ndations w� have for futa�re grvwth and devela�nt, and see if
it is c��ati.ble with your visions of our fiiture. If it is, we will
�ake it � the public for their views. If not, we can wvrk aut the
differenaes, ooct� to a consensus of �n goals and abjectives, and
fhen take it to t-he public. Again, the pz�ooess wnuld be the same, bu�
hc�pefully quicker sfiill due to the work that would have be�n done to
that point. We all wish that we had been able to finish this
prelimir�au�y work at a faster gaoe. Neverfheless, w� a11 also feel that
accuracy and quality were m�st in��or�nti. We hope y�u will be pleased
with the draft we forward to yr�u. We look forward to our workshop
sessions wa.th you.
-2-
Attachaxent to letter dated
June 15, 1995 from Benny Baker,
Chair, P&Z Commission.
The City of FYi.ends-�� is actively involved in preparing a Ccmc�rehensive
Plan to be used as a planning ar�d develo�.xnent guide bv the City through the
vear 2010. It is expected that the Plan will incorporate ��ariaus ca�onents
that have either recentiv been ca�leted or zre underwaV at the present
tir,�e. It is haped that the Plan will also serve as a basis for the
development of a Capital Improvesnents P]an and an Econanic DeveloExt�nt Plan. .
The carR�onents of the Plan are to be as follaws:
(1) Dgnographic c�onditions: o�tli.ne existinq and expected po�ulation
and employment oat�osition of fhe,City. �-
i2l Land Use: descri.be and map current and proiected land use within
the City. '
(3) Tr�sportation: outline proposals for adding to or imArovir�a
cun�nt street and hiat�way syst�n includinq ar. vpdate of the
Thoro�whfare Plan. This svsten should also oontain pro�osals for
bicvcle and pedestrian pathways. �
(41 Coc�unity Facilities: ascertaan the adequacy of the City's
schools, parks, libraries, city hall, museu�ns, and other public
buildi.rxzs and/or facilities.
l5) �trvway Overlay Pistricts: incorporate the proposed entrywav
overlay district into the Plan as an inteoral oanponent for �wth
• and �ccuiamic developnent .activities.
(6) Main Street District: ascc�..rtain feasibility of t-he creation of a
Main Street District and the resultant eeoncmic develoFcnent ir.�act.
(7) tTtilities/Inf.rastructure: detezmina�ion as to adeqtaacY of the
utilities/infrastructurn of the City in relationship to the
variaus scenarios of qrvwth/developnent to a max�rcnan build-aut
status.
Fach cat�onent of the Plan will consist of th� portions: �1) a
description of ex�stinq conditions l21 a statecne.nt of qoals and c�biectives,
(3) a pr.oiec�tion of fut-ure needs and proposals for mEetinq those needs.
'.rtie consultants shall be rzsponsi.ble for the develorxnent, ac�iinistration,
and coordination of all ciata collection. F?awever, Y1ie City will detes�:ine
th� format and procedure of any citizen suLVevs tha� are utilized.
The consultants will also be required to partici.pate in the formulation,
or+�anization, and achninistraticn of anV task forces, citizen/interest qra�p.
Citv Boaz�ds and C.aimissions, City Council, staff ineetirxrs, arx9
presP.ntations_ These meetirws will occvr on a r�ular and freques�t L�asis.
Upon campletion of the �ata collection and the meetinq schedules, thA
Consultar�,t will supply the follawinq:
(1) A land use �r�ap
(2) A thoi,oa�ahfare plan
(3) A map showiriq all �cistit�q publiciccnmunity facilities and all
pnojectied/proposed public/catnunity facilities
(4) A doc�rent which will inc1L�, L�ut not be limited to:
(a) established, aqreed upon qoals and ob?ectives and a cannunitv
vision � �
ib) populatiion and density proiections
(cl a description of the requirements necessaxy to ensune o�uality
sezvioe delivery from t-he present until the City is
va�letel.y built-o�t for each of the fol.lowirxf:
(11 utilities
(2) i.n_frastructure •
(31 c7rainaqe '•
(4) parks �
(5) schools
(6) polioe, fire, and city staff
This infornsation shall be pravided for each of faur projec�eci
po�ulatian �th rates: 3$, 4$, S� arid 6$.
(d) a plan of "haw to get there frcm here"
All inforn�ation must be geai�ed tawa�s the iorn:ula�ion of a Eapifzl
Tmpravanents Plan to facilitate the realization of the goals and objectives
autlined in the Ca��rehensive Plan.
The City will pravic3e all inforn�ation currentiv on harx� (ca�uter based
infonnation compatible with Intergraph Micr.�o Station Software) and will
assist as needed i.n obtaininq pertin�nt info�ation related to the pro�ec�t.
- This assistance will be neqotiated as part of the oriqinal contract
agreem�xit. •
It is expected fhat the wr�rk will be cccapleted by the end of the 1994
calendar year.
CONIMUNITY FACILITIES PLAN
MIINICIPAL There are several operative functions involved in municipal govern-
FACILITIES ment, some of which the average citizen is probably not aware, that
are required to provide the services they enjoy and use. These
functions are grouped together and given the collective title of
Community Facilities. Included with the municipal functions are
the school districts which also provide a community service but
under a separate taxing and governmental operation.
MUNICIPAL The municipal functions included in this section of the Plan are: the
FLJNCTIONS administrative offices, library, police, fire, public works, commu-
nity development, and service center operations. Often, how these
�-- functions are housed and their location in the community will
influence the efficiency and cost for their services. It is not the
intent to analyze the operative characteristics of each function, but
rather the status of space and location as related to the population.
It is important to be aware of where space deficiencies exist or
where change can be made to improve services, thus allowing
recommendations to be placed in the capital improvement plan for
the programming and funding of new facilities. The following
discusses the existing features of each function and when applicable
recommendations are set forth.
City Hall - The location of the new municipal building is at 910
South Friendswood Drive adjacent to Fire Station 1 and Stevenson
Park. Offices at this new location are Administration, City Secre-
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f EXISTING MUNICIPAL BUILDING
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ACTIVITY CENTER
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, �� NEW MUNICIPAL BUILDING
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9, '�;,f
FIRE STATION#1
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�� LIBRARY !f',' �E�
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Single•Family ;
Duplex °�CREEK
� Multi-Family �O �� ��
■ Retail R�S��"_�
■ Commercial
� Office
Parks&Open Space
Public&Semi-Public o so� �oo� zoo�
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J.T.Dunkin 8 Associates,Inc.
Urban PWnnln¢�Lendecape ArchilOeNro
City of Friendswood, Texas
MUNICIPAL BUlLDING, POLl�E & LIBRARY FIGURE �17
tary, Community Services (parks and recreation), Administrative
Services (finance, human resources, utility billing, municipal court,
MIS) and Community Development, which includes engineering,
planning, zoning, and building inspection. There are approxi-
mately 22,100 square feet of space in the City Hall for administra-
tive use and the Council Chamber. This space should be sufficient
to accommodate personnel growth which will gradually occur with
population growth. ,
Library - The city library recently moved into a single story
building on Friendswood Drive from its previous location on
Morningside. This newer building was formerly used as an office
and has been refurbished for the library which will have expanded
space for all library activities, as well as meeting room space. The
current building includes approximately 15,600 square feet. The
�'" site has high visibility to the public and the building is positioned to
allow space for landscape treatment along the thoroughfare with
adequate parking area behind the building.
This facility is expected to serve the library needs for the City's
ultimate population. The central relationship of the library within
the community and the service area are both factors which minimize
the need for any future branch facilities. The purchase of the small
tract adjacent to the library on Friendswood Drive is planned and
will complement this site.
Police - The police department had been sharing space with the
administrative and parks offices in the 13,000 square-foot building
located at 109 Willowick. The fire marshal's office will be the fire
. activity located in this building. Given the age of the building, and
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� '��L� ��''"'�City of Friendswood, Texas
EXISTING FIRE STATIONS FIGURE 18
r
the ability of the building to provide functional space for police and
other public safety activities are both factors to be evaluated in a
pending study to determine the long range needs for housing public
safety functions.
Fire - The present fire facilities consist of the following stations:
• Station Number 1 is located at 1000 South Friendswood Drive
adjacent to the new City Hall and Stevenson Park. In past years
the station was centrally located but growth has brought about
change and other stations were required to provide adequate fire
coverage and service.
• Station Number 3 is located at 4402 Laura Leigh Street in
Forest Bend Park. A significant section of the station's service
�
area is outside of the City. However, areas north of Clear
Creek are served from this station which is a major factor
should crossing the creek from the south become restricted.
The important factor to be considered in spacing stations is to
be assured the engine can reach the fire within a reasonable
time from when reported.
• Station Number 2 is located at 2605 West F.M. 528 south of
Sun Meadow Boulevard. Fire training facilities which are used
to train personnel in fire fighting techniques are located on this
site.
Each of the above sites is shown on Figure 18 with a one and one-
half mile service area. As shown, there is a significant overlap in
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��, L � "" City of Friendswood, Texas
PROPOSED FIRE STATIONS — ALT. #1 FIGURE 19A
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'� L ""' City of Friendswood, Texas
PROPOSED FIRE STATIONS — ALT. �2 FIGURE 19B
�
station location of Parkwood Avenue south of Sunset Drive. Should
this proposal be implemented, it would appear some type of inter-
city cooperation could be undertaken to share costs for coverage in
the adjoining cities of League City and Pearland.
From the above proposals, it is evident that some adjustment will be
required to provide adequate fire protection to the City's future
urban area. Both of these proposals would be costly. Therefore, it
is recommended more detailed study be done before final decisions
are made. Such study would involve actual response times from
locations, the type of equipment that would be in use, man-power
and other similar considerations influencing the station's operation
and location.
Public Works - The Public Works building and sunounding
......
grounds are located on approximately three acres at 1306 Deepwood
Drive. This site also serves as the center for field operations for
water, sewer and streets within the public works function and park
maintenance. These field activities work out of a 2200 square-foot
maintenance building. The present site area used for maintenance
purposes is considered to be adequate in the future for the types of
operations presently handled from this location.
Activity Building- This building did house the library function, but
since has become an Activity Building. Currently, the building is
used for senior activities with future plans to include arts and craft
rooms, meeting rooms, and a larger assembly area.
� Sununary - The recent purchase of the building for the Library, the
6.5
construction of the new City Hall, and the redesignation of the
spaces vacated by these two functions has created adequate spaces
from which to operate for the administrative offices, police,
engineering, public works and community development as the City
nears build-out.
For capital improvement purposes, plans should reflect the eventual
up-grading of the police facility and sites for new fire stations.
Planning for these sites should be undertaken in the near future to
determine their precise location. This is especially important in
locating a site on Edgewood Drive north of Friendswood Drive
where sites along the thoroughfare south of Clear Creek are
developing for other purposes.
SCHOOL Friendswood is served by two school districts which are separated
�.
FACILITIES within the City by Clear Creek. North of the creek and inside the
city, the Clear Creek Independent School District operates Wedge-
wood Elementary and Brookside Intermediate. An elementary site
has also been purchased adjacent to Brookside Intermediate. Both
sites are on F.M. 528 and are shown on Figure 20. Although not
in the City of Friendswood, the Clear Brook High School is nearby
just north of Blackhawk on Edgewood Drive.
Friendswood Independent School District serves the area of the City
south of Clear Creek using the five types of schools shown on
Figure 20. The school district has vacant property at the intersec-
tion of Parkwood Avenue and Windsong.
� School district facilities need to be factored into the Comprehensive
6.6
�
Plan even though the City has no authority to designate specific
locations for school facilities. However, when considering future
school sites, the City and school can work in a cooperative manner
to designate sites as land develops. By showing the intent of school
sites in the Plan, the development community is made aware that
such sites are needed and can plan their property appropriately to
accommodate these facilities. Further, when elementary school sites
are designated, the City, can begin to direct the platting for develop-
ment of the neighborhood around this site. Also, the City can
consider joint use of a site for park-school purposes and purchase
land with the District.
As mentioned, the Clear Creek District has purchased a middle and
elementary site on Parkwood Avenue. Even though the City was
not involved in the land acquisition, it still may desire to explore a
.�..
neighborhood park for this area of the City.
Within the Friendswood District, there are two areas where vacant
land will ultimately be developed principally for residential
purposes. These areas are either side of South Friendswood Drive
towards League City and East of Parkwood Avenue towards Alvin.
To satisfy the elementary school, and possibly the middle school
needs, the general location for future sites should be designated for
these areas.
Friendswood ISD - To provide some direction to future school
needs, very preliminary projections are set forth below to indicate
the scope ofthese needs:
6.7
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, ��;_L �" City of Friendswood, Texas
EXISTING AND PROPOSED SCHOOLS FIGURE 20
. �
�
• In the 1990 Census which was taken around mid-1989, the
number of occupied dwelling units in the City in Galveston
County was 4,983 units.
� The total enrollment in the FISD for the 1989-90 school year
was 3,232 students.
• The ratio between the above values is .65 students per dwelling
unit.
• Examining this relationship between population/dwelling unit
and student enrollment indicates the following for the grade
levels shown:
K - 5 = .29 students per unit
6 - 8 = .16 students per unit
9 - 12 = ,� students per unit
.65 students per unit
When applying a similar approach to the end of the 1994 year's
housing units and the January, 1995 student enrollment the follow-
ing comparison can be made.
� Assuming all, or the preponderance of all, new dwellings since
1989-90 have been built in the FISD portion of the City, the
dwelling count is the 1990 count of 4,983 plus the 1,573 units
built since 1989 for a total of 6,556 units.
� • The January 1995 enrollment was 4,208 students.
6.8
..�.
• The ratio between dwelling units and student enrollment is .64.
Therefore, it should be valid to examine below the built-out
dwelling units and a factor of .64 to provide a preliminary estimate
for elementary enrollment which can be converted to classrooms and
ultimately to school(s).
• A built-out population of 45,000 persons with 2.8 persons per
dwelling is assumed. The number of dwellings for the total
City would be approximately 16,000 units. Adjusting this value
to the FISD would place approximately 12,000 units in the
District.
• Applying the .64 factor to the dwelling count would generate a
�.
total enrollment of 7,680 students.
• Further division of the enrollment to the elementary level of K-
5 would result in an enrollment of approximately 3,500
students. This value would require five schools each having a
capacity of about 720 students.
From the above analysis, it is reasonable to assume the District will
likely need two additional lower grade level schools to serve the
City's future urban area. These sites are shown on Plate 10 as
future schools with one location generally situated south of Friends-
wood Drive in an area where a neighborhood park is proposed on
the Park Plan. The other location is further west in a general
location where another neighborhood park is proposed on the Park
6.9
�
Plan.
The City and School District have an opportunity to make a
significant contribution to the future residential areas in the
southeastern section of the City by jointly undertaking site acquisi-
tion and development of the future neighborhood facilities. The
school projections made herein make certain assumptions which
may be varied in a more detailed analysis, but the conclusions
reached for a minimum of two additional lower level grade schools
should be valid.
6.10
DRAINAGE
�
GENERAL The initial phase of a master drainage plan was undertaken in 1992
and completed in 1993. The purposes of this initial study was to
create a planning tool to be used by the City and developers to
provide guidance for the provision of adequate drainage for the
continued growth of the city. This was to be accomplished by
providing the City with a city-wide drainage map with the delin-
eated drainage areas, determining run off flows from each drainage
area and analyzing existing capacities of twenty designated outfalls.
This resultant study has become Phase I of the City of Friends-
wood's Master Drainage Plan. It is recommended that, as
subsequent phases are completed, additional tasks be performed to
supplement the City of Friendswood's Comprehensive Master
�`"' Drainage Plan. These tasks can also be performed in phases over
a period of years. These should include, but not necessarily be
limited to:
• Update Flood Plain Information
• Erosion and Sediment Deposition
• Storm Water Management
• Flood Plain Ordinance and Drainage Criteria
• Miscellaneous - funding alternatives, flood alert system, monu-
mentation, elevation certification, and implementation strategies
and schedules
,�
8.1
STUDY The following summarizes the major elements undertaken in Phase
� COMPONENTS I:
• Mapping-The mapping for the drainage system was city-wide.
Since the mapping was from original map data, there are
expected to be some inconsistencies in the base map coming out
of this first phase, as well as storm data. Based on City and
Consultant data, all the drainage areas within the City were
mapped. This mapping effort was not intended to search out
and rectify all inconsistencies but to provide a map for "work-
ing" purposes that the City of Friendswood can utilize and
improve upon as the system evolves and inconsistencies are
discovered.
• Analysis - Completion of base mapping and definition of the
, drainage area allows the analysis phase to be completed. The
purpose of this phase was to provide the City with the magni-
tude of the flows that could be expected from each drainage
area for given frequency storms. This analysis was based on
existing land use. These flows are to be used as a planning tool
to provide guidance for the provision of adequate drainage as
the City continues to grow.
• Specific Problem Areas - The third phase of the study was an
analysis of twenty designated problem outfalls. It was deter-
mined that many of the problems stem from undersized storm
sewer systems and/or a lack of drainage ditch capacity. This
analysis does not examine any downstream impact from
increased flows to the creeks.
8.2
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`�`��A ! �.... 3� 'A �i��r �"' �, `'�+ �J/
S�^ • # O a r+y�'�d!
;1,� < •s�. s 1�,w�.*�.� e;r'.>A'.
/ 4 � ♦ J,�.r�`
.;ll r J 4 �.� )e`i•:,.:'�� ��"
a ., � � y / r , iF�..
° �� �f� s'Sf�i '`C � .
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�;y, r� ,.; � ,,r;j� j:'..�,� �Jf�•���,��►,
� �'a, ���,
r j,<<:�a '� , f.'• $
".�,�.., � ,�,N��omnnut�x� �i+a�+�3' t,•�'~ N
. '-----1°'ti � It= � �'�►ur� ,�.
'i .:� i �arC.�•;% :>. �`�;��!3,,�-..�'
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�+
DRAINAGE The purpose of this analysis was to detemune the magnitude of run
�- ANALYSIS off flows that can be expected from the various drainage areas. The
analysis is based on existing land use. The intent of this analysis is
to give the City a planning tool to provide guidance for the provi-
sion of adequate drainage as the City continues to grow.
For each problem site, a proposed solution was determined. It is
important to understand that the solutions presented in this planning
study are only conceptual. The stated pipe sizes may vary based
upon eventual detailed engineering and topographic surveying which
will be performed during project design. The proposed solutions
presented in this study provide the City a possible solution,
magnitude of cost and basis for planning future engineering and
construction. It is expected that after initiation of actual design
engineering, acquisition of detailed survey data and analysis of
� alternatives, site specific paraneters and city requirements, a more
refined and cost effective solution can be obtained.
Of the 226 defined drainage areas within the City, 20 problem areas
were identified by the Ciry staff utilizing empirical information and
citizen input. The problem areas are shown by Figure 23. The
analysis for each of these areas has been condensed in this Plan to
the identity of area, statement of problem and the proposed solution.
A complete analysis can be gained from the Drainage Study.
• #1 Woodlawn Storm Sewer
Statement of Problem: Street flooding
Proposed Solution:
A. Woodlawn at Shadowbend: Three possible solutions
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1. Construct a detention basin in the vicinity of Wood-
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lawn and Shadowbend to collect the flows which
,�.. cannot enter the storm sewer system.
2. Replace the existing storm drains from Shadow-
bend with two 60 inch storm drains.
3. Convey the flows from the drainage areas north of
Shadowbend down a ditch along the back property
lines between Woodlawn and David St.
B. Laurel Drive Storm Drain:
This system requires complete reconstruction beginning at
Woodlawn Drive by replacing the 24 inch storm drain with
a 60 inch storm drain and ending with a 36 inch storm
drain on Laurel Dr.
C. Spreading Oaks from Woodlawn to the tributary of
Cowards Creek:
The double 36 inch storm drain pipes should be replaced
,....,
with double 72 inch pipes to convey the flow to the
tributary of Coward's Creek.
D. Tributary of Coward's Creek:
The Tributary should be cleaned out, widened, and grass
lined in order to convey the greater discharge resulting
from these upstream improvements.
• #2 Briarmeadow Ditch
Statement of Problem: Area flooding
Proposed Solution:
A. Construct a storm drain from the intersection of Sunset
Drive and Briarmeadow north to Winding Way and then
west to Coward's Creek.
B. Install an 84 inch storm drain at a slope of .00006 ft/ft
along Briarmeadow toward the north. Connect it to the
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existing 48 inch storm sewer, continuing north along Briar-
w� meadow and then west along Winding Way to Coward's
Creek, with an 84 inch storm drain. At northwest corner
of Sunset and Briarmeadow intersection place a junction
box with a 36 inch stub-out to pick up the flows from west
in the north roadside ditch of Sunset. Cross Briarmeadow
with a 60 inch RCP to pick up flows from the east of Briar-
meadow. Cross Sunset Drive with 60 inch RCP and install
a junction box'with a 48 inch pipe to the west and a 42 inch
pipe to the South. These pipes should be used in the future
to extend the storm drain system along Briarmeadow and
west along Sunset.
C. As roads are improved, extend storm drains south, east,
and west.
,� • #3 Leslyn/Sterlingwood Outfall
Statement of Problem: Street flooding
Proposed Solution:
A. Runoff from the Sterlingwood subdivision requires both the
existing 48 inch storm pipe on the north side of Merrie-
wood and the double 24 inch storm drain on the south side.
The 24 inch storm pipes should be connected to the
manhole on the north side of Merriewood and the pipes
which drain the Briarmeadow ditch from the south should
be blocked off .
B. Leslyn Subdivision requires four additional inlets and a 36
inch storm drain to the north paralleling the existing
system.
C. When designed in the 5-year street replacement program,
Merriewood and the crest in Deseret Drive should be
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lowered to allow relief of 100-year flood flows down
�-� Deseret and across Merriewood to the detention pond north
of Merriewood.
� #4 Sunset Ditch
Statement of Problem: Ditch flooding
Possible Solution:
Install a storm drain pipe on the south side of Sunset Drive
from Mills to Cowards Creek. Outfall the storm drain at
Coward's Creek on the north (downstream) side of Sunset.
• #5 High School Outfall
Statement of Problem: Street flooding
Proposed Solution:
A. Remove and replace three 36 inch pipes under Falling Leaf
� Drive with four 60 inch RCP's, lower the flow line of the
ditch to allow positive drainage.
B. Install a 48 inch storm drain in Larkspur toward West
Castlewood with inlets at the sag, and at the Outfall of the
drainage easement behind the properties facing West
Castlewood. Extend a 36 inch drain culvert to Castlewood
Drive with a headwall in the Castlewood Ditch to collect
the 5 year flows from Castlewood Dr.
C. Construct a riprap overflow section from Larkspur to the
ditch for flows exceeding the storm drain capacity.
D. Perform a detail drainage analysis on the High School
property and adjacent neighborhood.
� #6 Greenbriar Ditch
Statement of Problem: Area flooding
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Proposed Solution:
..�.. A. Install a storm drain from Chigger Creek to Briarmeadow.
B. Install double 24 inch cross connections to the north at
Briarmeadow, install 1 cross connector to the north ditch
at the 10 foot easement north of Londonderry, stub out to
the south at Wilderness Trail West ditch.
C. Insta11600 feet of 54 inch (36 inch for smaller line) storm
drain west from the 60 inch. Install 24 inch cross
connectors to the north ditch each side of Murphy Lane and
install inlets in the south ditch at the same location.
D. Insta11400 feet of 48 inch (24 inch for smaller line) storm
drain west from the 54 inch to midway between Murphy
and Mills Drive and install a 24 inch cross connector.
E. Insta11400 feet of 42 inch (18 inch for smaller line) storm
drain west from the 48 inch to Mills Drive and two 18 inch
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cross connectors to the north at Mills Drive and inlets on
the south ditch at the same location.
• #7 Wilderness Trails/G1ennShannon Outfall
Statement of Problem: Street flooding
Proposed Solution:
A. Install a 72 inch RCP with headwall from the west side of
Wilderness Trail at G1enShannon Subdivision to Chigger
Creek along the back of the properties facing Greenbriar
Avenue. Install ditch headwall and modify ditch to
accommodate the 72 inch line. Tie existing 48 inch line to
the 72 inch RCP.
B. When and if Wilderness Trail is changed to curb and
gutter, install parallel line in G1enShannon, add inlets at
street intersections, tie parallel line to 72 inch and block of
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headwall.
• #8 Falcon Ridge I
Statement of Problem: Street flooding
Proposed Solution:
A. Remove the curb at southeast corner of White Wing Circle
for a length of 243 feet. Install ballards to keep pedestrians
and cars from entering the proposed swale.
B. Construct a grass lined swale from the southwest corner of
White Wing Circle southeast to the utility easement line.
This swale would have a minimum depth of 2.5 feet, a 5
foot bottom width with a 5:1 side slopes for ease of
maintenance on a minimum slope of 0.0025 ft/ft slope.
• #9 Mission Estates Outfall
Statement of Problem: Street flooding
Proposed Solution:
A. Improve conveyance through the off site access road
downstream from the 54 inch constriction structure.
B. Install one additiona154 inch culvert through the restriction
berm resulting in a 1.5 foot freeboard during the 5-year
flood and the ability to accommodate larger floods.
C. Insure adequate outfall ditches to convey the difference
between the 5-year flow in the pipes and the 100-year flow
through the streets allowing a maximum 1 foot depth of
flooding in the streets.
• #10 Carmel Village
Statement of Problem: Street flooding
A. Insure adequate outfall ditches to convey the difference
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between the 5-year flow in the pipes and the 100-year flow
through the streets allowing a maximum 1 foot depth of
flooding in the streets.
B. Install two (2) additional 66 inch RCP culverts under San
Joaquin Parkway.
C. Purchase at least two lots between South Mission and the
ditch at sag locations and install overflow ditches capable
of conveying the 100-year flow to the ditch without
flooding the streets to a depth greater than one foot.
• #11 Sun Meadow Main Outfall
Statement of Problem: Street flooding
Proposed Solution:
A. Purchase a drainage easement with the golf course area
(approximately 7 acres). Excavate 61 acre feet for a
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detention pond below elevation 31.
B. Disconnect existing pipes at detention pond crossing(s), and
install headwalls at each outfall.
C. Construct concrete overflow swales from East Castle
Harbor Drive to the open area. average overflow width is
10 feet.
D. Install a flap gate at end of 72 inch outfall so that Chigger
Creek flows will not back up into the local detention
facility.
E. Connect the relief storm sewer which flows north to the
detention pond.
F. Evaluate the "Regional Flood Control Plan for the
Clear Creek Watershed" for improvements to Chigger
Creek to reduce flooding in this subdivision.
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• #12 Sun Meadow Relief Storm Sewer
.�.-- Statement of Problem: Street flooding
Proposed Solution: Connect the existing relief storm drain to
the proposed detention facility.
• #13 Garden Drive Ditch � Spreading Oaks
Statement of Problem: Area flooding
Proposed Solution:
A. Improve the s�vales along W. Shadow bend from Sedora
Drive to the tributary draining this area.
B. Install a 48 inch culvert across Garden Drive on the west
side of Shadow Bend to convey the ditch flow across the
road.
• #14 Garden Road Ditch � FM 2351
Statement of Problem: Area flooding
Proposed Solution:
A. Install a 48 inch culvert under W. Edgewood Drive next to
the 42 inch storm drain to equalize the ditch flows and
convey flows to the proposed swale in Sedora Drive.
B. Install a 36 inch storm drain from Brigadoon to the south
side of W. Edgewood. Connect the 18 inch storm drain in
Brigadoon to this pipe and install a ditch inlet south of
Stadium Lane. Clean the ditches along W. Edgewood
South of Stadium Lane.
� #15 Block bounded by FM 528, FM 518, Winding Way and
Leisure Lane
Statement of Problem: Area flooding
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Proposed Solution: Extend the Highway storm drain to
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Winding Way via Leisure Lane and install inlets and ditch
headwall to pick up ditch flows or improve ditches along
Leisure Lane, and as the vacant areas develop include detention
to maintain existing flows.
• #16 Melody Lane
Statement of Problem: Inadequate Drainage
Proposed Solution:
A. Acquire a 30 tbot drainage easement from Melody Lane to
Mary's Creek east of the Dunbar Estates subdivision.
Construct a 4 foot deep ditch in the easement at a slope of
0.004 ft/ft. with 3:1 side slopes.
B. Install two double 24 inch culverts under Melody Lane east
of Dunbar Estates at an equal distance from the proposed
swale.
C. Improve the ditches on both sides of Melody Lane to have
a consistent slope toward the double 24 inch culverts.
D. As development occurs, encourage detention to maintain
the existing low flows from the area.
• #17 FM 518 - Willowick to Mary's Creek Tributary
Statement of Problem: Street flooding
Proposed Solution: Construct a parallel relief storm along
Edgewood and South Friendswood.
• #18 FM 518 - Willowick to Coward's Creek
Statement of Problem: Street flooding
Proposed Solution: Construct a parallel relief storm sewer line
along the southwest edge of FM 518.
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• #19 Annalea Outfall
,�.... Statement of Problem: Area flooding
Proposed Solution:
A. Replace recent 36 inch RCP at the outfall from Virginia
toward drainage ditch with a 48 inch RCP. Extend this line
to the pipe from Rachael. Connect the two inlets on the
south side of Virginia at Rachael to this new line.
B. Replace the existing 24 inch line from Annette and Lottie
Lanes with a 33 inch line.
C. Add an Inlet at Lottie Lane, add a manhole at Lottie Lane
and replace 18 inch line with a 24 inch line.
D. Extend the 48 inch line to Mary Ann Lane and connect
south inlets at this intersection to the new line.
E. Extend a 36 inch line south along Mary Anne to the inlets
at Linda Lane.
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• #20 Whitehall Outfall
Statement of Problem: Street flooding
Proposed Solution: Increase the inlet capacity by adding inlets
or replacing with larger RCP and culverts.
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