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HomeMy WebLinkAboutMarana Gardens Specific Plan 1988RECEIVE [AUG 1 1 1988 F a. O ASSOCIATES Ei'IG(I\LERS MARANA GARDENS ' SPECIFIC PLAN The south 330 feet of the north 695 feet of the NE 4, NE-4.,. Section 28, T 11 S;. ' R.11 E I in the Town of Marana, Pima County, Arizona. March 1988 Prepared For,: • MARANA INTERNATIONAL:DEVELOPMENT CO. P.O. Box 848 Marana, r ?. izona 85238 (602) 622-3328 Prepared .By: John B. Oder P.E. ' 9345 Paseo Tierra Verde Tucson, Arizona 85749 ( 602 ) . 749=4.159 1 1 1 1 1 1 1 1 1 1 1 1 1 MANRANA GARDENS SPECIFIC PLAN PART ONE: DEVELOPMENT CAPABILITY REPORT GENERAL DISCUSSION 1 MAP OF THE TOWN OF MARANA 3 SPHERE OF INFLUENCE MAP 4 LAND FORM / OPEN SPACE MAP 5 TOPOGRAPHY AND SLOPE ANALYSIS 6 HYDROLOGY AND WATER RESOURCES 6 TOPOGRAPHIC MAP 7 WATER RESOURCES MAP 8 VEGETATION AND WILDLIFE HABITAT 9 GEOLOGY AND SOILS 9 PALEONTOLOGY AND CULTURAL RESOURCES 10 EXISTING STRUCTURES 10 EXISTING INFRASTRUCTURE 10 PART TWO: SPECIFIC PLAN OBJECTIVES 16 PROPOSED USE 16 ZONAL LAND USE MAP 18 ZONAL INTENSITY MAP 19 EXISTING LAND USE MAP 20 AREA MAP 21 SURROUNDING STRUCTURES 22 SPECIFIC PLAN IMPLEMENTATION AND AUTHORITY 23 REGULATIONS AND PROGRAMS FOR IMPLEMENTATION 24 PROCEDURE FOR AMENDMENTS 25 ' LAND USE AND RESTRICTIONS 26 HYDROLOGY CIRCULATION PLAN 27 27 FUTURE CIRCULATION PLAN 28 ' CIRCULATION MAP 29 UTILITY PLAN 30 ' LANDSCAPE PLAN 31 OPEN SPACE 31 SURVEY MAP AND LEGAL DESCRIPTION 32 APPENDIX DRAINAGE REPORT ARCHAEOLOGICAL REPORT ' AERIAL PHOTO - SURROUNDING USES li IL 1, ' MARANA GARDENS SPECIf'I ^_ C PLAN PART ONE: DEVELOPMENT CAPABILITY REPORT The development capability report consist of maps and text summarizing the impact of the proposed development ' on the site conditions existing on the land to be reg- ulated by the Specific Plan for Marana Gardens Subdivision. This report outlines the physical and cultural aspects of 5 the property and thus providin 0the Town of Marana, the Town Council, the Planning Commission and all other con- cerned citizens the needed information to evaluate those properties of this proposed project. ' Current conditions in Marana and environs indicate a need for moderately priced new homes. This plan is being pre- pared to aid in meeting that need and to form a nucleus for future Down Town Marana Core Development. The intent ' of this plan is to inhibit urban sprawl, traffic congestion and associated pollution. ' GENERAL DISCUSSION ' Marana Gardens is located within the corporate limits of the Town of Marana. It is near existing schools,commercial ' and residential developments. It fronts on Sandario Road and lies approximately 365 feet south of Greer Road. Inter- state 10 has an interchange about one half mile north of the site. The Santa Cruz River is approximately one and ' one half miles to the south. Page 3 shows the location of the property within the Town ' of Marana boundary. IGENERAL DISCUSSION (Continued) ' Presently the Town is primarily agriculture in nature. The adoption of the TOWN OF MARAN.A GENERAL PLAN shows ' the Town's intentions for an orderly transition into an urban community which will provide a comfortable quality of life style for its citizens. t The Town of Marana General Plan shows the subject property within zone G with a zone intensity 1, the residential ' range is 4.0 RAC and a target of 8.0 to 10.0 RAC. The density proposed by this Specific Plan for Marana Gardens is 5.3 RAC. This is at the low end of the rec- ommended intensity and well below the target density. ' The circulation map proposed that Sandario Road be extended southerly to the existing Tangerine Road align- ment and thence easterly to the existing Tangerine Road Intersate 10 interchange. ' The Water Resources Map indicates that the Specific Plan ' Area is outside the Santa Cruz River flood plan. A flood plain study is currently underway by CMG Engineering for the area north of the Santa Cruz River. A hydrology and ' hydraulic report by CMG Engineering is included in this Development Capability Report. 2 I A I rl- i yily-.u.:J4.Yfi1• ���.. }a\ �I � I I SCALE: � � : 1 MILLI BJEC to h— 7- -mix— �` Sol • � '\ � „ �m I. \�\ \��I\ ? � T � i `��. ��; ... 2 \•\ ` 1, `�'� 3 I:`�a•.:—•.«..,.r .~--'x �,^r`a-rr.m...-+e.. >.p•",.'�'n'?+'9nT:�t I ' ter'"- I - T `°_ ---�-• L,.,,L I -- ---- I- --- I I I I I I I I I I � I I zDrnzlx,L ur INFLUENCE i Lp• t - 7 =� ' _ __�`_ ` -4 �•__ •'' ,� �� I i J/7�{��� JO�; ! .✓•�_1�.(rf;l J [ �: �U'�..�r�l,�j p�� .1 -�.f•' -:.--','�•�--.._ .t�•.�Y'-'- 'vr �"^�•.5 .���/fc`✓ly-Gr/•' `T�� � l?i-..a. 1d �A`iN..� � .rte- .J. • . `'...._ �...r- I' . t '. t �, . • • ._ �- .��� E I — -.�.^ � ._� 1 ' 1 ` _ 111:. % ' - : _ • .r • ram _. -_ - _ _ +1 l �� .•.—' �� .` `�. .� •�` w�TJ„ •'l�;' ��\ l 11 it LEGEM Sphwe Of tnfh♦w+cs cies14_ Town Unitte (34 ick mO . i ' �--1----��. _ ._ i.' - _ - � _ -� -lam. "�--• � \,�-l^r"'- � • '1 1 � TOWN OF INARANA A LAND FORM/ r.-OPEN SPACE i. `,4 � • " - � i. `• k � - � ...:'� � � f 1. _ • _=�-•-�' i •'.-T y ' I lot; LIF. .. . ....... 16 .77 � ` .-��`• ! ' . T"� .+m �+a. � � %� i _ � .1 `- i � ♦ r: ' r .:y � `• i '. tea.► ; �— _ .. •—c - 7 �_. - ` 'o.. +n---'/�/ l� ...ice. - •t t f • _ ' _.�7- - � �/ / ` l � t •... the _ . T� '-� 'l`��fT�1-jD _ ....<ee.. • - _ .--.. �. _...c, .�vcs.. ,y - � ,. � . ,! .. � � : ^'!y I `L L'Pon `;Paco _. _ T _. __ I- /`__. -•- —..� . � _ 4'_ 7:_ `. � �� .��.' 'q,- Lead Fxrq f �^ -.. * • a '.r a 5 r 1. TOPOGRAPHY AND SLOPE ANALYS.LS The Marana Gardens Specific P1an,Area is located on the r west side of Sandario Pcad and.sou.th of Grier Road. The area lies between an apartment complex and primarily vacant land to the north and a.trailer park to the south. r The topography of the site is uniform and sloping only rslightly from east to west. The site has been farmed for many years although not under cultivation at this time. 1 The the elevation along westerly edge of the property rproperty is 1980. The elevation along the easterly edge of the is 1982. This yields an average cross slope of .0016 feet per foot. 1 fo i To provide site drainage for development pur osed and to insure against flooding,the' center of the property will have to be raised. This. will provide a more pleasing rrolling appearance to the Terrain. 2. HYDROLOGY AND WATER RESOURCES See drainage report by'CMG Drainage Engineering included. r r i . 1 r6 V11 r4 V Ln Z o Q �^N /i✓n/I V/I✓✓iY I I WATER RESOURCES Alt.1 . _ . • � F raoa.eiaaw .ons v : -,1, , .. ' {' . lam__`_'• � � ....... � ._ / y��r . — S.. `^f �'� y��S �,yf- �a - , :�1� l- i_-- ` I �-r_ --1 - `I � ,;•. •tet 1 3hmpf Flow Area Rivera/�ah Area 8 Floodplain ,- � � �._ � •• - ���. ,��• :' �, C.A.P. I _ _ • — ., f - +:� w ,' _ '� 1 1 1 1 1 F 1 1 1 1 1 1 1 1 1 1 1 1 3.. VEGETATION AND WILDLIFE HABITAT This site has been used for.agricultural purposes for many years. As a result of the farming activities no native vegetation or wildlife habitats remain on the site. The area between the north boundary of this Specific Plan and G ee Road is residential or cleared vacant land. The adjacent area to the south is a partially developed trailer park. To.the west.lies open farm land. All adjacent lands and this site have long been devoid of native vegetation and wild life habitat. Contact with the Tucson office of.the Arizona Game and Fish Department revealed that there is a remote possibility that Desert Tortoise.and Gila Monster might be found. If either of these species is encountered on the site they are to be relocated to the safer more suitable environment of the Santa Cruz..River area. 4. GEOLOGY AND SOILS The geology of the area.is of a sedimentary nature formed at the time when the Santa Cruz and Avra Valleys were closed basins, probably during the Pleisticene age or earlier. The soil on the site is very uniform as a result of many years of cultivation. It is of the Gila Loam classification with minor amounts of silt and clay. The soil has moderate permeability with low shrink -swell characteristics. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 GEOLOGY AND SOILS (Continued) Soils of this type are suitable for construction purposes as they can be excavated and compacted with conventional construction equipment. Because of the proximity to occupied dwelling units dust will not be allowed to escape the site during grading operations. 5. PALEONTOLOGY AND CULTURAL (ARCHAEOLOGICAL AND HISTORIC Professional Archaeological Services and Technologies have made an on site survey and presented:.their-'findings and recommendations in the included report. 6. EXISTING STRUCTURES, ROADS AND OTHER DEVELOPMENT The site has historically been used for agricultural purposes: At the present time'it is not under cultivation. As a farm field," it contains no structures, roads or other.development. 7. EXISTING INFRASTRUCTURE AND PUBLIC SERVICES SANITARY SEWERS There is an existing eight inch sewer in Sandario Road adjacent to the site frontage. There is capacity in the sewer line to serve this development, however, the pumping capacity in the Trico-Marana Road pressure line may require augmentation. The Marana wastewater treatment facility will require expansion as the development progresses. 10 1 1 1 1 SANITARY SEWERS (Continued) Included is a letter from Pima County Wastewater Management outlining their requirements. WATER The site is adjacent to a producing well. This well is owned by the Cortaro Water Users Association andAinancial arrangements can be made to serve this site from that well. When the, Town of Marana is successful in establishing its planned municipal water company it will become responsible for providing water service within the corporate limits of the Town of Marana. A standard aid in construction agreement will assist the Town in providing water service. TELEPHONE Telephone service exists along Sandario Road and is adequate to serve this development. 11 1 .8rzo PIMA COUNTY WASTEWATER MANAGEMENT DEPARTMENT 137 WEST CCNGRESB TUCSiDN, ARILONA 85701 GEORGE A. BRINSKO Director Mr. John B. Oder, P.E. 9345. Paseo Tierra Verde Tucson, Arizona 85749 February 10, 1988 IRE: Marana Gardens Development Public Sanitary Sewerage Service PH: 792-8676 ' Dear Mr. Oder: In response to your letter of January 27, 1988, wherein you requested this ' Department's conditions/requirements for the noted Subdivision achieving public sanitary sewerage service, I offer the following comments: 1. Under existing conditions (actual developments and commitments for ' service through approved Sewer Service Agreements), adequate capacity does not exist for this proposed development within the public sani- tary sewerage facilities currently serving the Marana area. '2_ A preliminary analysis of the drainage basin indicates that one or more of the existing public wastewater pumping systems (WWPS) down- stream of the proposed development, may have to be augmented. The cost of augmenting/upgrading those WWPS', including any additional rights-of-way that may be necessary, will be the responsibility of the owner or developer; without reimbursement from Pima County. ' 3. In addition, the existing public wastewater treatment facility does not have capacity available, in its present configuration, to accom- modate all of the Marana Gardens ultimate projected sanitary sewage flows. It is this Department's policy that any required expansion of an existing public wastewater treatment facility should be accom- plished by the County through its Capital Improvement Program (CIP) - utilizing funds from the Wastewater Management Construction Fund. When the need for additional capacity precedes the CIP schedule for those improvements (which is the situation in this instance); then ' the developer is given the option of either funding and accomplishing the required work themselves, or waiting for the County to accomplish the work via the CIP. \ ' 12 Mr. John B. Oder, P.E. February 10, 1988 Page -2 ' The current CIP cal's for :tire Marana ,,FYJTF to be expanded/relocated in FY 1988-89. Because the present site::for the Marana WWTF is neither appropriate for a large r) faci.l.ity;._,nor is it positioned within the ' overall basin so as to provide maximum benefit to the Town of Marana, we are quite reluctant to util:i-ze:bdnd funds to enlarge - even on an interim basis - the Marana facility at its current location. Hence, ' it is quite doubtful that additio-nal capacity could be made available for projects such as Marana Gardens in the near future. ' B. A Certificate of Deposit at a local bank, or C. A Construction Bond for the Marana WWTF interim improvements, with appropriate instructions, or ' D. A Letter of Credit for the Marana WWTF interim improvements, with appropriate instructions. Word of Caution: The more sewage.that is placed into the existing WWTF, prior to commencing the required interim improvements;.the more ' difficult (and, costly) it may become to actually.accompl.ish the involved improvements! 1 13 With the above noted information taken into consideration (and if ' Marana Gardens desires to connect to'the system prior to the comple- tion of the above referenced CIP project), we would requirethat the owner/developer of Marana Gardens plan, design, front-end finance, ' acquire any required permits and construct.improvements to the exist- - ing WWTF - all as required to provide the additional "interim" treat- ment (and disposal) capacity needed to accommodate sewage from the ' forty-eight (48) units of the Marana Gardens project. The costs associated with the.construction (only) of the involved physical/ interim improvements to the WWTF would be eligible for sewer connec- tion fee credits. 4. Wastewater Management, through its Capital Improvement Program, will ' strive (with the support/assistance of the Town of Marana) to have the first phase'of a new regional WWTF (and the initial segments of the associated influent interceptor/trunk sewers) ready for service in mid -1989. 1 5. In the event that the owner/developer of Marana Gardens would desire to connect up to. twenty-five (25) of the project's first housing units into the existing Marana VWTF - prior to the completion of the ' required interim improvements to the existing WWTF; financial assur- ances for the costs associated with the required interim WWTF improvements - in one of the foilowing'forms - would need to be provided to Wastewater Management: A. A Third Party Trust Assurance Agreement, in the same format as the Pima County Assurance Agreement, modified to reflect.Town of Marana, as appropriate, or ' B. A Certificate of Deposit at a local bank, or C. A Construction Bond for the Marana WWTF interim improvements, with appropriate instructions, or ' D. A Letter of Credit for the Marana WWTF interim improvements, with appropriate instructions. Word of Caution: The more sewage.that is placed into the existing WWTF, prior to commencing the required interim improvements;.the more ' difficult (and, costly) it may become to actually.accompl.ish the involved improvements! 1 13 It should be noted here that the owner/developer (or their authorized agent) will have to apply for, and be issued, a construction permit for the installa- tion of the involved public sewage conveyance facilities, and for the required "interim" improvements to the Marana 19WTF - all prior to commencing the actual work on the development (progress) in the field. Any.required easements will need to be secured and provided to Pima County prior to the release of the involved public sewerage facilities. ' It should be noted that the owner/developer of properties lying.easterly of I-10 (from Tangerine Road to the Pima/Pinal border) are contemplating the Mr. John B. Oder, P.E. along and immediately adjacent to the I-10/SPRR corridor, to serve the February 10, Page -J 1988 involved area and convey the sewage to the proposed/relocated Marana WWTF - near the Pima/Pinal border (west of I-10). The degree of service/relief that t. 6. To summarize: The following issues/items must be rely>olved before any building permits ' are issued by the Town of i*V4arana.for units within Marana Gardens: be abandoned when .that new sewer is placed into service. The improvement A. The owner/developer shall prepare approvable (by PCWWMD) Con- tion is as yet unknown. struction Documents for the required public sanitary sewage ` ' conveyance facilities - including any necessary augmentation of, questions, please contact me at 792-8676. tRichard -the downstream public wastewater pump:i.ng system(s). B. The owner/developer shall prepare approvable (by PCWWMD, ADEQ and ' ' PCDOT & FCD) Construction Documents for the required "interim" xc: George A. Brinsko improvements to the existing Marana WWTF; and the associated Ray Teran ' financial assurances, as described above in Section 5. C_ A formal Sewer Service Agreement (SSA) must be consummated Jerry B. Stratton 14 between the owner/developer and Pima County (or their authorized agent) for the project, as a whole or in phases. It should be noted here that the owner/developer (or their authorized agent) will have to apply for, and be issued, a construction permit for the installa- tion of the involved public sewage conveyance facilities, and for the required "interim" improvements to the Marana 19WTF - all prior to commencing the actual work on the development (progress) in the field. Any.required easements will need to be secured and provided to Pima County prior to the release of the involved public sewerage facilities. ' It should be noted that the owner/developer of properties lying.easterly of I-10 (from Tangerine Road to the Pima/Pinal border) are contemplating the formation of an improvement district to design and install a trunk sewer, along and immediately adjacent to the I-10/SPRR corridor, to serve the t involved area and convey the sewage to the proposed/relocated Marana WWTF - near the Pima/Pinal border (west of I-10). The degree of service/relief that that proposed sewer will provide to areas ;tying southerly of I-10 (such as the ' system(s) to which Marana Gardens will be tributary) is still unknown. It is conceivable that the sewer may cause one or- more of the downgradient WWPSs to be abandoned when .that new sewer is placed into service. The improvement ' district is still in the planning stage; hence, the estimated date of comple- tion is as yet unknown. I hope this letter addresses your concerns in this matter, and if you have any ' questions, please contact me at 792-8676. tRichard G. Harrington, .E., R.L.S. Chief Engineer ' RGH:hlb xc: George A. Brinsko Ray Teran ' Jon C. Schladweiler Mark R. Stratton ' Jerry B. Stratton 14 I �I February 16, 1988 Richard G. Harrington P.E.,R.L.S. Grief Engineer Pima County Wastewater Management Department. 130 West Congress Tucson, Arizona -85701 RE: Marana Gardens Subdivision M12-87-1 Public Sanitary Sewage Service Dear Nr. Harrington: This letter is to confirms my understanding of the results of our meeting on February 12, '1988. 'Ihe subdivision will consist of forty-six (46) single family detached dwelling units. Standard sanitary sewer collection plan with the associated approvals. and permits are required for the subdivision. Wastewater Management has scheduled upgrading of the.downstream pumping facilities so it is therefore unlikely that any additional pumping augmenta- tion will be required. Interim improvements to the existing Marana WWTF will be required. The Arthur Beard Engineers Design Report dated January, 1987, will be used to evaluate the needed interim improvements. A supplimental design report based on the A.B.E. Report if required. Twenty-five housing units will be allowed.connections prior to the comple- tion of any interim WWrF providing the plans .pave been approved and the as- surances have been posted to cover the construction cost. ' A Flood Plain use permit.and a sewer service agreement is required. .If all of the above statements are correctt,'no response to this letter ' is requested. If not, please let me know as SC)On as possible. Very Truly Yours, John B Oder P. E. ' JO/mj 1 15 t . MARANA GARDENS SPECIFICPLAP3 PART TWO: SPECIFIC PLAN. TEXT ELEMENT , ' OBJECTIVES '. The the Marana Garden Specific Plan is to: objectives of 'a. -Provide a point of beginning for residential and ultimately other types of growth radiating out from ' the Town Core. b. Provide housing with a neighborhood setting which will enhance the value of the area and still be within the economic reach of future Marana residents. c. Establish land use patterns which will encourage car ' pooling and reduce automobile trip generation. 4 ' d. Provide flood protection for this area. ' PROPOSED USE The land use proposed by the Marana Gardens Specific Plan is.single family detached residential. The Marana General t Plan designates Zone G with a zone intensity of 1, a res- idential range of 4.0 to 22.•0 RAC and a Target of 8.0 to 10.0 RAC. The density proposed by this Specific Plan if 5.3 RAC. ' This is below the target near the low end of the residential range. The Marana General Plan does not specify lot size, however to achieve the recommended density small lots or '16 1 1 1 1 1 1 1 1 1 1 1 1 PROPOSED USE (Continued) Multiple family units will be required. The surrounding neighborhood is a composite of residential types. On' the east side of Sand.ario.Road are small single family detached and mobile homes._To the north is a low income apartment complex, mobile homes and vacant land. To the west is open farm land. To the south is a partially developed trailer park with a few scattered trailers. 17 2Iamas ,.8 'ZSIXg 17A z w � H � H U' �7 Pa N U O H � H � � N Q U � W O v] O � � W Ln o U n 8 a a H N y W � q UJ = ZONAL LAND USE ' I _ ..� - L ' •--T---` - r .. r- - ! ... :.. _ _ . _ _ ` �„�� ' Tom_ r ui.i �ass♦..:�vo.'o......gP-t!m .aaz: aurr •— =_�+ OW E w C•- - A '�–ice •y _ ( .1 0,J— 'GJ. — y r _ e' �_. .� _ C A\T�F�d. __ E .t. _ _ � •� �, A 9 .A { g� 8` _ ,` . �. ' i C C D• `. i-' B E E-�- E • E �. E, - '--r C 4 E •.w... �..c. :13_A- F r — - ■ _. _ B i C I _-� . �• -L.W.. � __1 JL .- - ;.. � � .��' I r', •tip .' Jr� � .y�. 1. i'sY6WW. W.a.: <aissasosa,smaaa. uvvvwiwII• .-�-" ''–_ _ '.' .. x - LEGEND ' x•■■ ■, rr.r•rrw. o...i. -. .io». c.. or. .`•...» �vr....r,...ar l...r».,ew e.�.., nv..., ..... —` a c"o...r ; rf.. r ... .r--_ ::...:.. t• ,. e�..;:. l�_J �" Ca V,... .. .... ..--� ;. i.. ..n...w.. r.t ..wu. (.n.n,a ,........... TOWN'OFIVOIARAllf-i A R I Z O N A 18 60NAL INTENSITY 1-7 rpt, _rl \ - _• � __ i!�' _' ._- It, . .. � �. `S ,.. , : ; -`,�' •mak,. `�v:.� _`� 13 . �� '<� , - _ � • � ��' � „}� ' 'gam _' ,. ti r •--�`_� � :: y�)�yt �y�aaawacFeeD • E A ,a c Ijl +-• a A g 9 _ c s ;ams A , E ;� •F F.�f 1 _ -c c . , _ ,• • _� p _.— _ _ __ ..fir_ _ --_ t` C` �_ � om�s�G?iSuoo2"a u:• ..... , ..•...g . •i is '� � _ i �'- _ ' —_ " _ „ • pry' , _ - :. ..- . _..' � •`_ - �X _ `?i _ Y, -i 1Zone lr*Walty Poaldent'n! Pangs i ar�et I 4.0-22.0 RAC 9.G-i0.J AAC LI Y 11 2.0–i3A PAC 9.0 RAC ' 1� 0.25-5.0 RAC 2.0 RAC TN --� AR 1 0 N A .-' 19 ' 1 = EXISTING LAND USE. ! 1 k ...i _ _ •'tV'.I J'. •I • 'S• rr '�,•,r T• �,• `�, • _ CC L /. » .� � ,—_ _ C _—C—�.`.� 1 f \ _ : a. .�•> ' _� L`.�Ik ' 111 - Y , A,14� - ` ]-JI}�.-li-,-.-ter fro_. -• �1 •�,• •• ! - i • / i . _ • __ . _ I .. � �, . �•� I ����` �,.�k I�'�i .t ' i'� • _ice i • •�' L _ i _ _ - '' �` - I I � Z^�� Irl \� �,•� •� , � r-- ....•.a a •.v..rcr_• : �e ,i� 5 ? . `ice `_ ' r ` O.O �aa O�aaod•oa••••a••aaa0ara0as000a•aaO•_•aOaNaYOGtl LL ,,tom-�--- - ,, ,,: -<"- - _., �. ` ._ • - - ,. ' - .'. � .- ':- _ —{� •a�•••Y• ONMPiO•M•a aaM �� , .— -- •rra••r•vaar......i v4vaada•v ••ar� avoa./vv1•w�lran -_/• 1 T; _ '..�, 1_ �� LW AwIciAhre EE' :�.I P-tdkVAmexatlon l_ it Akport '�l suw Alc. %&*na/lanaf9 TOWN OF MARARN13A = A R I Z 0 N A 20 ! 21 AREA MAP WITH SEWER LOCATION i p 4 r 'Y CIO H InL4 'Alp I Z;z 'Y CIO H InL4 'Alp I i I PROCEDURES FOR AMENDMENTS TO;THI:S;SPECIFIC PLAN The Specific Plan may be,amended,b'y submitting a written application for amendment to°ahe Tlanning and Zoning t Administrator. The application shall state the regulation or. regulations that 'are to be amended and theVaa feet such. ammendments will have on the remainder of the plan. All- Specific Plan amendments shall be in substantial conformance with the intent of th'e original Specific Plan. The Planning and'Zoning Administrator shall refer the. amendment request with his recommendations to the Planning 'h Commission for Public Hearing. The Planning Commission Town,Council. The shall make its recommendation to the To Town.Council will act on the proposed amendments after holding Public Hearing the a on subject... ' The planning and Zoning Administrator may allow minor changes to the Specific Plan, providing the modifications do.not conflict.with the-intent of the original plan. Minor changes do not include increasing building heights, ..densities or a change in.the.residential use. 25 I .. I ' LAND USES AND RESTRICTIONS i I. RESIDENTIAL - HOMES:INTENDED F'O:R THE OCCUPANCY' OF A- SINGLE RAML,LY: II I I i I. I I I I• I�� i � .I I. 1; I I I I I i I Ii ,i li I I ii j I I I I I j I I I I i ' I I I I i I I I I j I I � I li I I I I I I , I j I t II I I I I , 5. Front a}nd rear and seth cks. from the y r e.r n p op ty li e:-. -' 1 The minimum setbacks :shall be- equal to the building 20 -feet the height . of or whichever is greater. 6. Side Yards: The .side -yards shall be.a minimum of 10 feet unless zero lot line construction is used. If the zero 1 lot line.opti.on is chosen the minimum distance between buildings shall .be 20 feet. 1 7. Parking: A minimum of two off street parking spaces, not less than 8%2 feet wide.and 20 feet long shall be 1 provided on each lot. 1 i 1 1 26 A Y LAND USE AND RESTRICTIONS (Continued) i' 8. Access:" Accesslot,;.wit .hi.n this development shall be from 'a pu'Llzcly c'cdica:ted. street. 9. Street improvements: The. streets within this development shall be constructed with a minimum roadway width o£ 30 feet. of pavement`; concr;e,te •'curbs`, and gutters and ' 4"foot wide .con`cr"ete.sidewalks .on each side :of the roadways.. The sidewalks are to'be..constructed adjacent to the back of the curbs. Suffici.en.t.right of way is to be dedicated toP rovide for all of the. proposed roadway facilitates.The proposed ROW is 50 feet. HYDROLOGY A hydrology and drainage analysis is presented in the included drainage report by CIG Drainage Engineering. CIR"CULATION PLAN.: The small size of thisproject dictates that all const- ruction be accomplished in a single phasd. this Sandario-Road which ,serves project has adequate capacity. to Yandle the additional traffic generated by' ' t"his.project. For'eas'e of ingress,and egress to the site Sandario'Ro.ad is to"be' widened to provide an acceleration .and deceleration lune. :An "additional 1Q feet .of .right. of " way is to be dedcated.for,Sandario Road.. Because of the setting street lighting is not proposed, 1 for this. project: t27 c��a i� .o •D nroc[ro.w[ •D. X11 DEC. M. Mto N — n •[ .... rrr Tvm 1 ` G5� CIRCULATION PLAN The eas end of the new street will be barricaded to .prevent intrusion on to the neighboring property. The eas erly cul-de sac will serve as a temporary turn around. 28 CIRCULATION - �-- - — ,�g' ,fir•; a F,y 1 ` `• _ % ,} � , J 17 ---moi -- X ; _ _ , , ' ' ' - - -ti _ •, ' , `�., i � ,. � � � � i �_�p�'i' < ^ -`'4 :ter .,�,• , 5 � 1 �.: :��. W :w sn•.cf �``'','� ` 1 ~ mmb. + ' ..!- L -1 •17�� -1�•�� ,�:' �� `.Ktti ' ti �a•mm ■m •.some oe� i mm •omr.••• : Aja- -.-. _�-/� amo _q. mpaomm •�mamo�s bbl* bT ey ;/d•. .�' • .. ` f . i'�- �' JS.s^'` J,,.±,�Y,�_,^{�,•,�..f'1a i...)- .1•j S"5�!�y.: �. _ . . , ' .�• 1 '�' it-: ='/' J'`•.-.'1� ,2r' �r ' L 4� _Y•• ti.1 -Jam'•\`• •� ',,X\ � ,7� J / .�t�•'i•�•'C'J4T ' �,� al� ��_: \ " � �.- I � I . • /'�~,�: C v'--,�:�C%r ? .... •1 �.%�!, j j�C ' Lµ~ �:� =r 1 , ]1 ^. tT� , . a. _ S ' 1 � � `�� •.-�''_'-_—moi.•+---- Tan a '.L ' S• P.� i _y, ', . 1 •.�� :�? e P -1l • f. 77 I`{{` - ti _ _•_ ---` _ - _ -\— — -may•'Linda Vlat. _ _ ° - s•c e.r, Oil Twilary r 'logo .. :.. - a•mmmvmmvmum.ii � .. r' . ~-ly-'`' - - --_ -�L p - •' Y -: ' lEC3Elm _—_ _.••�•eo•.......ce_^mo__ �_ = ,.T:. -- •-1-- -- J _ I '� �� Proposed Interchange - f l Existing Interchange % '^ �-� ; :•�� . •.'_ state Hghway�_ 5" .. Koy Feature ' �� 1 Principal Arterial TOWN OF MARANA 29 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 UTILITY PLAN Eight inch sanitary sewers will be each lot within the subdivision. Th will be prepared to Pima County Was standards and processed for approva When accepted they will be maintain It is proposed that the existing tri expanded simultaneously with the hoi Electrical service will be provided Power Company. Gas Service will be provided by Soul Company. Domestic water will be provided by Association. Solid waste pick up will be by SCS The above services require service payment of the appropriate fees. All utilities are to be underground. NEI )nstructed to serve construction plan water Management by that agency. I by Pima County. fitment ponds be ;ing construction. ,y Tucson Electric ern Arizona Gas rtaro slater Users rporation. agreements and the ' LANDSCAPE PLAN b The front yards of each of the.lots.are to be landscaped in a desert motif using low water consumption vegetation. OPEN SPACE, The Specific Plan area is less than 10 acres. A cash ' contribution will be made to the Town of Maran'a per section 0.6.03.02 E'of the Development Code. ' 31 ANP 2" BRAs 1 "21/4 mcowc— "YO1-T17' Z 5 tilla55, lyd7z17 N ' y':':i i:` FAST NOC.'OZCY -/l/ �p K) I . I I I U 13:18. le> N I 36 L 9 Y hy, rD?5jC: fl;Z4r1lq 5 7121196LP) 13 c,,- 4 9/T ll�f-S61LTS GFSOPV�Ey I kn TIOIY OF THE A -W 7;ql-,l T CV*T TZIF ,?N - 011A6 MER S---6 7-11.1'r)l Z3 7 1`11VA C6VJV1' 4RIZ,1-ryd �?O .419 LEGALDESCRIPTION: The south 330 feet of the North 695 fee't of the NE 4j NE k, Section 28, T 11 S, R 11 E,GSR B&M. 1 32 CO zz 0 263¢'03 w /,Y rA4 IL - 1317.'OZ /YD (3 1317'17 AV. JL C 7/1" SET /Z SO FND S.?z 13:18. le> N I 36 L 9 Y hy, rD?5jC: fl;Z4r1lq 5 7121196LP) 13 c,,- 4 9/T ll�f-S61LTS GFSOPV�Ey I kn TIOIY OF THE A -W 7;ql-,l T CV*T TZIF ,?N - 011A6 MER S---6 7-11.1'r)l Z3 7 1`11VA C6VJV1' 4RIZ,1-ryd �?O .419 LEGALDESCRIPTION: The south 330 feet of the North 695 fee't of the NE 4j NE k, Section 28, T 11 S, R 11 E,GSR B&M. 1 32 CO zz ' Prepared by: CMG DRAINAGE ENGINEERING, INC. 110 S. CHURCH AVE„ STE. 458 ' TUCSON, AZ 85701 For: ' JOHN ODER, P. E: 9343 PASEO TIERRA VERDE TUCSON, AZ 85749 t ' MARCH 9, 1988 ` ' �` � ���E ^rf � •moo. 5275 Y U N A ' SS URA, %325- Page 1 3 3 3 6 2 5 7 .g TABLE OF CONTENTS r I. "INTRODUCTION H. HYDROLOGY. ' 2.1. Offsite Hydrology 2.2 Onsite Hydrology ' III. ONSITE DRAINAGE PLAN LIST OF FIGURES ' FIGURE 1 - LOCAT'10N. MAP FIGURE 2 - DRAINAGE BASIN BOUNDARY MAP A FIGURE 3 SITE PLN ' FIGURE 4 - FEMA STUDY MAP. 1 t Page 1 3 3 3 6 2 5 7 .g I. INTRODUCTION ' This report presents the results of a, `drainage 'study for a parcel of land located within Section 28, 'Township 11 South', Range 13 East, GSSRBEM, ' Pima County, Arizona.. A 'location map -for the- subject property is shown ' on Figure 1 of this report. The parcel is', approximately 9.5 acres in size and is bounded on the east by Sandar.io Road between Grier Road and ' Barnett Road. The property is planned as a housing development. ' addressed .the offsite and onsite -drainage which impacts_ upon This ,report 9 ' the subject property and the 'with -project drainage design plan. ' The methodology used to compute peak discharge rates was taken from the Pima County Hydrology Manual. This . methodology was selected for use ' County. because it has been calibrated to small watersheds within Pima 'Additionally,. the Town of . Marana is, currently drafting a floodplain ordinance which. issomewhat similar to the Pima County Floodplain ' Ordinance. Therefore, use of the Pima County method will assure compatibility with existing and future drainage design standards: Finished floor elevations for structures within this development were established based upon water surface elevations- for a 100 -year flood on the ' Santa Cruz River of 70,.000. cfs. The revised regulatory floodplain maps have 'been reviewed and approved by ' the Town. of Marana and will be ' adopted by the community in the near. future. Setting the finished. floor ' elevations based upon this information will insure compatibility with future - conditions regulatory floodplain mapping` and floodplain ordinances. 1 L-_ u n u\ n c` �• 1 J- 1 JL-_.._JLC__=JL ____J J' \ -5r---�r. - Ir ----ter \---�( N\\�`l q1 1. O� c r•• °\ 22 \ �' 1 . 1 l\\\` .21,1L O 1 — 1 1 1 L-_ u n u\ n c` �• _--JL_____ JL \ JLJL -ter---v----�r,-�=-�r �•. \ -_-'��-,�� J- - JL-_.._JLC__=JL ____J J' \ -5r---�r. - Ir ----ter \---�( N\\�`l q1 II IL: 11- n .II n ii.. \ „ --- a u u u0-. • i o 0 �� O� c r•• °\ 22 \ �' 1 . l\\\` .21,1L O O — JL -',• -=JI --= -'ll' -- /966-- ---- ROAD Ma ana • a • \ u u fJr High \ '. Sch 'R 0 1968 d R AD .. '/982}- •• .. \� II$'1 p, Oht n /99Marana� II High SchO°I 1 F n ' I • \k n y \\ n8 Settling \ :• Ponds n o n n it 11 n a ?8 Well /99-51\ u 111/987 __- /977 II/9B/ 27 \ II II \ If e II to II \ n 11 II \ if 198/ ' 1� Well... \ 1991 II I - - IIMOORE . a I�,-1 •off...• .�I ■ II• 'I'(I. \9�� it II 11. HYDROLOGY ' 2.1 Offsite H drolo Y gY ' One offsite drainage basin impacts upon the subject property. This basin collects runoff from a 20.8 -acre .area to. the south and east of the subject ' property: Runoff generated by basin' #1 flows north. along Sandario Road within a ditch along the west -side of "the road. The 100 -year peak dis- charge rate at CP#1, located at the southeast corner of the subject .prop- ' ei-ty, is 80 cfs. Runoff from basin #1 continues north past the subject property and then flows west -in a ditch along the south side of Grier Road... ' 2.2 Onsite Hydrology Y gY ' The subject. property is divided into two onsite drainage basins. Basin #2 collects runoff from. the eastern, 3.6 acres of the site. Runoff. generated by basin #2will flow east 'into the ditch along the west .side of Sandario Road-. The runoff will then be carried north within the ditch as described above for basin #1. The 100 -year peak runoff rate with the proposed ' development is 25 cfs. Basin #3 collects runoff from a 5.9 -acre area of the subject property. Runoff generated by basin #3 :will flow west across the subject property and= onto. the property along . the west _boundary. The runoff will then flow northwest to the ditch along the south side of Grier ' Road. The 100 -year peak discharge rate .for basin #3 with the proposed developmentis '37 cfs. p 9 P p • Hydrologic data sheets for basins #1, #2, and #3 are located in Appendix B. The Pima County Hydrology Method was used to determine the peak 3 111.. ONSITE DRAINAGE PLAN Runoff generated on the subject property: will be collected within a 32 -foot jo wide street through the' center- of the. site (see Figure 3) . The runoff. generated by 'basin #2 v)ill 'flow east: along the .onsite street and into the ditch along Sandario Road,. as described above in Section 11. The depth of flow for the onsite street at cross-section A -A' is 0.53 for the 100 -year ' event. Runoff generated by basin. #3 will be collected within the onsite street and carried west to the property line where' it is discharged onto the adjacent property, as described in Section II.: The depth in the street at ' cross-section B -B' for the 100 -year event is_.0.63 feet. The owner of the subject property has a written agreement with the adjoining property ' owner to the west to accept runoff from this development. p Runoff within the 'ditch will not spill over onto the subject property. The 100 -year peak discharge rate for flow within the ditch along Sandario Road is 105 cfs (runoff from basins #1 and #2) Hydraulic 'computations de- termined that the ditch has the capacity to this runoff without p Y carry ' spillover •onto the site. However; spillover onto Sandario Road will occur for the 100 -:year event (see hydraulic computations for cross-section C -C' ' located in Appendix B) . The depth of flow at cross-section C -C' is 2.0 feet. ' The proposed minimum finished floor elevations shown on Figure 3 are one foot above the 100 -year- water surface elevation for the Santa Cruz River. The water surface elevations used are from the updated FEMA Flood 6 D�.ID --------------- �fr��b�•—r � uinN j•u.r / vs ♦.iunp Y o tav�] o t W iebo 4 V p pP \kj k, nit o �+ u2r�p w h • p �? M pV` m 2v� �0 �• Com. _ � O �fr��b�•—r � uinN j•u.r / vs ♦.iunp V- i Y o tav�] ow t iebo 4 O, p pP \kj k, nit o �+ u2r�p w h • p �? M pV` m 2v� V- i Insurance Study for the Santa` Cruz , River. Figure 4 shows a portion of the FEMA study maps for the -area surrounding the subject property. The water surface elevations..- shown are ,for ,the 100 -year event. The ' proposed ' 12 finished floor elevations are at least feet above the flowline of the Santa ' Cruz as required by the current Town of Marana Floodplain Ordinance. Flowline elevations for the Santa Cruz River at each cross-section are also shown on Figure 4 of this report. ,Additionally, it should be noted that ' the, proposed minimum. finished floor elevations are one, foot above the depth of flown within the onsite . street and adjacent ditch. •, 8 ' F.. A S T March, 6,:: 1988"'.. :.' Mr John Oder ; 9345 Paseo Tie:rra.Verde .Tucson, ,AZ. 85749,,. RE Report for Marana Gardens Archaeolo . gical _E�:pl"oration '(PAST: Job No. 881691, Dear -Mr-..Oder Archaeologists .from P. A. S.T. conducted 'a .5 personday, 10 acre exploration'..of:,the Marana"Gardens r"property on Mar -ch 6;:198,this exploration consisted of an intensive "on -foot coverage. of :the proper.._ty` by our 'staff in order .to . identify and lo.ca't.e any' • cultural resources, historic or prehistoric,'within`the property '.boundaries.: ('see attached .'documents'). Field:,:personnel (D. Stephen) were spaced 15 to 20 meters apart and crossed the subject property an 'a `series. of ;contiguous 'corridors. General: conditions were excellent ':for.. conducting the ,fieldwork,:. ,.-Gr.ound. visibility, was. severely effected by disturbances to the ground. surface,. the.* presence of trees, "shrubs., semi -shrubs:,. succulents and ,grasaes There ",were no surface - indications'. of signi'fcant archaeological, materials on the property.,,. Records at the Arizona. =`State 'Museum were''also-checked..-for-the subject property ' I recommend , that .the ,proposed dev.el"opni1. ent related activities .may'' ...�be.gin on thesubject propert.v : Based .on the f field, methods employed and the -observablesurface indicati,ons.,.there is: note ' sufficient -evidence o warrant•.furt.her..archaeologica-1 s.tudies•,on " the Marana Gardens property. However,. this.: 'does 'not preclude the poss;ibility. 'that.- ground disturbing .: activities could. reveal '. the presence of cultural:resources. In the unlikely event such `materials are';: discovered, :construction activities should cease and .a • professional archaeologist bre consulted to assess the 'potential" significance of `any 'artifacts -or features unearthed. If J -may be of any further' assistance please d ' not hesitate to contact me. i Cheers, David V. M Stephen Archaeologist' encl. ^PAST !fle.-hGr:e r\rctiaeviog s's 5035 Gnder Rarnch Rr: 160 2) i ^'_r?^. Tucson, Arizona tow Nj SANDARIO ROAD;I� ulfl A T, -� rte' "N V IC AIN us I tm JZ. I