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

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the purpose of watershed and watercoursemanagement.Biological ResourcesGoal BR1 - Preserve sensitive habitats within theNorth Peoria ADMP Peoria project area.Objective BR1.1The reach of perennial flow for MorganCity Wash and Agua Fria River and theadjacent riparian habitats should be protectedfrom future development in orderto maintain the ecological integrity andintact condition of these habitats.Policy BR1.1.1Encourage that developers contact theArizona Game and Fish Departmentfor specific development design considerationsfor areas adjacent to theperennial flow reach for Morgan CityWash and the Agua Fria River locatedin the Morgan City Area.Objective BR1.2Riparian vegetation habitats should bepreserved along major washes in the MorganCity, Big Spring, East Terrace, andTwin Buttes areas to enhance bank stability,to decrease lateral erosion, and tomaintain the existing sediment balance ofstreams.Policy BR1.2.1Recommend that vegetation and anadjacent buffer zone be preservedalong major washes.Desert Lands Conservation Master Plan(August 1999), and the Lake Pleasant/NorthPeoria Area Plan (November 1999).Visual CharacterGoal VC1 - Maintain the existing visual character(natural, historic) of the region.Objective VC1.1Minimize the visual impact of stormwaterstorage facilities.Policy VC1.4.1Encourage that stormwater storagefacilities be designed to appear in conformancewith the natural contoursand alignment of the terrain.Objective VC1.2Encourage maintenance of the naturalwash side-slope texture and color in areasof disturbance.Policy VC1.2.1Where constructed, flood control facilitiesand side-slope stabilization measuresshould match the adjacentterrain in color and texture.Objective VC1.3Minimize the number of wash crossings inorder to prevent disrupting views up ordown the wash. Minimize impacts toplant and animal habitats, and avoid disturbingthe existing sediment balance,decrease the need for public maintenanceand minimize scour and deposition.Other applicable policies and guidelines forpreservation of sensitive habitats, buffer areasadjacent to riparianriparian corridors, preservationof significant stands of representativeplant communities and revegetation of disturbedareas are presented in the ComprehensivePlan-Maricopa County Eye to the Future2020 (1997), and the ESDA (June 2000) forareas within Maricopa County. For areaswithin the City of Peoria, applicable policiesand guidelines are presented in the City ofPeoria’s General Plan (June 2001), Peoria25Policy VC1.3.1Where utility, trails, or roadway crossingsare necessary, cross perpendicularto wash, at the narrowest point and/orat the point of least vegetation disturbance.Policy VC1.3.2Replant disturbed areas using existingnative plant species types and densitiesthat are consistent with existingconditions.
NORTH PEORIAAREA DRAINAGE MASTER PLANOther applicable policies and guidelines forpreservation of landform visual resources arepresented in the Comprehensive Plan-MaricopaCounty Eye to the Future 2020 (1997),Maricopa County’s Zoning Ordinance (HillsideDevelopment Standards (August 1993))and the ESDA (June 2000) for areas withinMaricopa County. For areas within the City ofPeoria, applicable policies and guidelines arepresented in the City of Peoria’s General Plan(June 2001), Peoria Desert Lands ConservationMaster Plan (August 1999), Lake Pleasant/North Peoria Area Plan (November 1999),Zoning Ordinance (September 1995 (HillsideDevelopment Overlay District)).Cultural ResourcesOur cultural resources inform us of prehistoricand historic cultures and cultural changethrough time. Both Maricopa County and theCity of Peoria recognize the importance of culturalresources and have adopted conservationand preservation policies that strive toprotect our cultural resources. Applicable policiesand guidelines for the identification, protectionand conservation of cultural resourcesare presented in the City of Peoria’s GeneralPlan (June 2001), Comprehensive Plan-MaricopaCounty Eye to the Future 2020 (1997),and Maricopa County’s Desert Spaces Plan(1995).Multiple-Use OpportunitiesAs an element of the North Peoria ADMP, anassessment of opportunities and limitationsfor integrating multiple-use recreational featuresinto preferred flood control managementalternatives was conducted.26Opportunities identified are primarily locatedalong Morgan City Wash in the Morgan CityArea, Unnamed Washes 1, 2, and 3 in the BigSpring Area, and Caterpillar Wash and TwinButtes Wash in the Twin Buttes Area. Thelocation of multiple–use recreational facilities(identified as part of this study) along thesewash corridors are primarily limited to the100-year floodplain and/or erosion hazardzone and possible detention/retention facilities,located within a wash, that may be constructedby developers. Multiple-useopportunities constraints are the physicaldimensions of the 100-year floodplain anderosion hazard zone and steep terrain. Washcorridors in the Morgan City Wash Area, BigSpring Area, and the Twin Buttes Area abovethe CAP canal are typified by incised channels,steep banks, narrow floodway limits thatare coincidental with floodplain limits (minimumdevelopment potential with floodplain)and erosion hazard zones that are not significantlydifferent than the 100-year floodplainlimits. Twin Buttes below the CAP Canal ischaracterized by a wider floodplain and erosionhazard zone than the reach above theCAP. Given the 100-year floodplain and erosionhazard zone dimensions and steep terrainconstraints multiple-use opportunitiesassociated with flood control managementalternatives are primarily limited to trails andopen space located within a wash corridor(the wider the floodplain/erosion hazardzone the greater the opportunity). Multiple-Use opportunities could be enhanced by planningrecreational facilities located outside ofthe wash corridor that connect to potentialtrail systems/open space areas within andadjacent to a watercourse.Planning efforts for multiple-use recreationalfacilities in the North Peoria ADMP shallinclude where merited the incorporation ofguidelines and standards developed for theCity of Peoria and Maricopa County in variousplanning documents that include, the Cityof Peoria’s Trails Master Plan (January 1999)and River Master Plan (January 1999), theFlood Control Districts Agua Fria WatercourseMaster Plan (2001), Maricopa County’s, Highway74 Scenic Corridor Overlay Zoning OrdinanceXXII-F-1, (August 1993) and, MaricopaCounty’s Parks and Recreation Department,Proposed Maricopa County Regional TrailSystem (on going).The following general goals are offered asopportunities to meet local community needsfor recreation and open space. Specific objectivesand policies are not developed as part of
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 14 and 15: Peoria General PlanThe Peoria Gener
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 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
Page 70 and 71: 100-year W.S. ElevationBufferFEMA 1
Page 72 and 73: NORTH PEORIA AREA DRAINAGE MASTER P
Page 74: 100-year W.S. ElevationFEMA 100-yea

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