North Peoria Area Drainage Master Plan - Flood Control District of ...

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Peoria General PlanThe Peoria General Plan is the fundamentalplanning document for the City of Peoria toguide growth and development within theCity and its planning areas. The plan wasupdated to include increased planning effortsmandated by Growing Smarter and GrowingSmarter Plus legislative statutes. The GeneralPlan adopted by Peoria’s voters went intoeffect June 15, 2001. Land Use, Recreation andOpen Space, Safety, and EnvironmentalResources elements of the plan provide policylevel guidance for development that aredirectly applicable to the North Peoria ADMP.The General Plan recognizes the unique characterand natural resources of the northernhalf of the city which includes the North PeoriaADMP study area and provides guidanceso that there is a balance between facilitatingdevelopment without endangering the protectionof the natural resources in the area.Lake Pleasant/North Peoria Area PlanThe Lake Pleasant/North Peoria Area Plan,completed by the City of Peoria in Novemberof 1999, provides guidelines to assist in thepreservation and enhancement of the environmental,recreational and aesthetic values ofthe Lake Pleasant Area while allowing forcontrolled development that is sensitive to thegoals of the plan and the natural environment.The Plan recognizes the assets of the uniquephysical characteristics, flood hazard, biologicaland visual resources, as well as existingdevelopment constraints within the area. Theeastern portion of the Morgan City Area lieswithin the Lake Pleasant/North Peoria Planboundaries.Peoria Desert Lands Conservation MasterPlan5The major goal of the Peoria Desert LandsConservation Plan, completed in August of1999 is to “Maintain the vitality of the uniqueSonoran Desert environment by providinghigh quality passive and active open spaceareas, while encouraging development that issustainable and supportive of the environment”.To meet the intent of the goal, recommendedpolicies that prescribe a course ofaction are provided to help guide development.In addition to recommended policies,sensitive land areas identified for potentialpreservation or conservation are presented.Sensitive land areas referred to as drainagecorridors include, Morgan City Wash in theMorgan City Area, Unnamed Washes 1, 2, and3, and their major tributaries in the Big SpringArea, and Twin Buttes Wash in the TwinButtes Area.White Tanks/Grand Avenue Area PlanAdopted in 1997, the Comprehensive Plan-Maricopa County Eye to the Future 2020,requires that County-area plans be updated toensure consistency with the ComprehensivePlan. The White Tanks/Grand Avenue AreaPlan adopted December 6, 2000 is an updateof the White Tank/Agua Fria Policy andDevelopment Guide and the Grand AvenueCorridor Area Land Use Plan. The plan recognizesthe scenic beauty in the northern portionof the North Peoria ADMP study area andencourages preservation while recognizingproperty rights of landowners to develop theirproperty.Desert SpacesIn 1995, the Maricopa Association of Governments(MAG) adopted the Desert Spaces plan.Desert Spaces is a regional open space managementplan designed to guide the membersof MAG in protecting open space while allowingfor future community growth and development.The intent of the plan is to preserve,protect, and enhance significant natural andcultural resources. Natural resources includeupland landforms, rivers and washes, andwildlife habitat. The plan also presents aregional network of trails that when implementedwould allow the public to enjoy thediversity of open space that the plan presents.Mountainous areas designated for openspace preservation includes the HieroglyphicMountains. Approximately half of the NorthPeoria ADMP study area is located in theHieroglyphic Mountains.
NORTH PEORIAAREA DRAINAGE MASTER PLANDesert Spaces-Environmentally SensitiveDevelopment AreasThe Environmentally Sensitive DevelopmentAreas (ESDA) Plan adopted by MAG in Juneof 2000, presents policies and design guidelinesfor areas identified in the Desert SpacesPlan as “Retention Area”. The purpose of thedesign guidelines is to provide guidance forboth the public and private sectors for developmentprojects within Environmentally SensitiveDevelopment Areas. EnvironmentallySensitive Areas presented in the Plan includethe northern portion of the North PeoriaADMP study area north of the Central ArizonaProject Canal.ENVIRONMENTAL HAZARDSIDENTIFICATIONWithin non-urbanized/rural watersheds naturalenvironmental hazards associated withrunoff from storm events exist. Without sufficientplanning and management, natural hazardsare compounded as development occurswithin a watershed. In order to protect privateand public property, naturally occurringenvironmental hazards and hazards createdby urbanization need to be identified. Environmentalhazards associated with storm runoffcan be categorized into flood hazards anderosion hazards. Under the authority of ARS48-3605, the Arizona Department of WaterResources (ADWR) has established criteriaand standards for determining flood and erosionhazard areas. The North Peoria ADMPconsiders hydrology, hydraulics and geomorphicevaluations, sediment engineering andcriteria established by ADWR in the identificationof flood and erosion hazards.HYDROLOGY,PSRXQGPHQW$UHD8SVWUHDPRI6WRFN7UDFNHydrologic analysis evaluates rainfall-runoffrelationships for a given area (watershed)where the volume and rate of runoff is estimatedat specific locations. An understandingof the hydrology of an area, both in existingand future watershed conditions is key indetermining flood hazards and in identifyingpotential impacts to watercourses drainingthe watershed due to urbanization. Theresults of hydrologic analyses conducted aspart of the North Peoria ADMP are used for:• Delineation of 100-year floodplain atselected locations.• Sedimentation engineering and geomorphicanalyses.• Hydraulic evaluation of flood controlmanagement alternatives.• Hydraulic evaluation of stormwater storagealternatives.Approximately 126 watersheds were delineatedwithin the study area to determine rainfallrunoff relationships for the 2-, 5-, 10-, 25-,50-, and 100-year frequency storm events forboth existing and future conditions. Figure 6depicts watersheds evaluated for the NorthPeoria ADMP.6
Page 2 and 3: TABLE OF CONTENTSPreface ..........
Page 4: PREFACEAt the request of the City o
Page 8 and 9: LIST OF TABLESTable 1: Regional and
Page 10 and 11: INTRODUCTIONThe natural physical ch
Page 12 and 13: minimize the effect of urbanization
Page 16 and 17: HYDRAULICS8QQDPHG:DVK%LJ6SULQJHydra
Page 18 and 19: FLOOD AND EROSION HAZARD ZONESWith
Page 20 and 21: ing them before they are destroyed
Page 22 and 23: PUBLIC INVOLVEMENTAn integral part
Page 24 and 25: hard pan, typically less than two f
Page 26 and 27: Economic CriterionThe evaluation of
Page 28 and 29: Table 4Summary of Evaluation Result
Page 30 and 31: INTRODUCTIONRULES OF DEVELOPMENTCom
Page 32 and 33: Objective EH1.3Identify erosion haz
Page 34 and 35: the purpose of watershed and waterc
Page 36 and 37: the North Peoria ADMP. Users of the
Page 38 and 39: (short, constricted reaches), backw
Page 40 and 41: • Collect hydrologic data - peak
Page 42 and 43: • Basin Outlet (Culvert). The bas
Page 44 and 45: Low Impact Structural AlternativeFo
Page 46 and 47: ack at the natural channel bed. In
Page 48 and 49: stability, and to assure structure
Page 50 and 51: developed for the Estrella Roadway,
Page 52 and 53: gabion mattressA gabion mattress is
Page 54 and 55: Maricopa County, August 21, 1993, H
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100-year W.S. ElevationBufferFEMA 1
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NORTH PEORIA AREA DRAINAGE MASTER P
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100-year W.S. ElevationFEMA 100-yea
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