North Peoria Area Drainage Master Plan - Flood Control District of ...
North Peoria Area Drainage Master Plan - Flood Control District of ... North Peoria Area Drainage Master Plan - Flood Control District of ...
Economic CriterionThe evaluation of the economic criterion isbased on the effectiveness of each alternativein satisfying two elements: ImplementationCost and Maintenance Cost.Implementation Cost. This element representsthe estimated cost of the proposed alternativeto the public, either through increased developmentcosts passed on to future residents ofthe area who will directly benefit from theimprovements (local public) or the costs to thegeneral public. The cost for a structural alternativeconsiders the cost of the structuralimprovements necessary to implement theproposed alternative (a positive cost), thevalue of land that is reclaimed from the floodplain/erosionhazard zone by the structuralimprovements (a negative cost, i.e., benefit).Added together, these costs represent the totalnet cost of the alternative. The effectiveness ofa given alternative is measured by using thetotal net cost. The lower the net cost thehigher the rating for the Economic Criterion.Maintenance Cost. This element accounts forthe potential maintenance costs associatedwith the structural components of an alternative.It has been assumed that such costs areproportional to the length of bank protectionproposed for a given alternative. The greaterthe bank protection length, the higher thepotential maintenance cost and the lower therating.SUMMARY OF EVALUATION RESULTSFlood control management alternatives weredeveloped for watercourses in the MorganCity Area, Big Spring Area, and Twin Buttesarea. Table 2 lists the watercourse evaluatedwithin the specific planning areas. The watercourseswithin a planning area have similarphysical and hydraulic characteristics andtherefore are evaluated collectively. Results ofthe evaluation are applied to all watercoursesin a specific planning area. Scoring results, forwatercourse management alternatives, forplanning areas are listed in Table 3.Stormwater storage flood control managementalternatives were developed and evaluatedfor the Big Spring Area with the intentthat the results are applied to other planningareas that have characteristics such that thestandard practice of retaining the 100-year, 2-Table 2Watercourses EvaluatedPlanning AreaMorgan CityWatercourseMorgan City WashBig Spring Unnamed Wash 1Unnamed Wash 2Unnamed Wash 3Twin ButtesCaterpillar Tank WashTwin Buttes WashEast Garambullo WashWest Garambullo WashWhite Peak WashWest Fork of White Peak Wash17
NORTH PEORIAAREA DRAINAGE MASTER PLANTable 3Summary of Evaluation Results Watercourse Management AlternativesPlanningAreaEvaluationCriteriaWeightingFactorNon-Structural Low ImpactStructuralPartial Structural Full Structural Do NothingRating Score Rating Score Rating Score Rating Score Rating Score1 2 3 4 5 6 7 8 9 10 11 12 13Morgan City Public Safety 10 8 80 8.3 83 NA NA NA NA 6 60Social 3 11 33 9.8 29.4 NA NA NA NA 7.5 22.5Environmental 6 14 84 10.8 64.8 NA NA NNA NA 5 30Economic 4 6 24 6.6 26.4 NA NA NA NA 2 8Total Score = 221 203.6 120.5Big Spring Public Safety 10 8 80 8.3 83 7.5 75 NA NA 6 60Social 3 10 30 9.8 29.4 9 27 NA NA 7 21Environmental 6 15 90 10.8 64.8 7.8 46.8 NA NA 5 30Economic 4 6 24 6.6 26.4 4.4 17.6 NA NA 2 8Total Score = 224 203.6 166.4 119Twin Buttes Public Safety 10 7.9 79 8.3 83 NA NA 6.7 67 6 60Social 3 10.9 32.7 9.8 29.4 NA NA 7.2 21.6 7 21Environmental 6 14.5 87 10.8 64.8 NA NA 4.6 27.6 5 30Economic 4 6 24 6.6 26.4 NA NA 4 16 2 8Total Score = 222.7 203.6 132.2 11918
- 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 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
- 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
NORTH PEORIAAREA DRAINAGE MASTER PLANTable 3Summary <strong>of</strong> Evaluation Results Watercourse Management Alternatives<strong>Plan</strong>ning<strong>Area</strong>EvaluationCriteriaWeightingFactorNon-Structural Low ImpactStructuralPartial Structural Full Structural Do NothingRating Score Rating Score Rating Score Rating Score Rating Score1 2 3 4 5 6 7 8 9 10 11 12 13Morgan City Public Safety 10 8 80 8.3 83 NA NA NA NA 6 60Social 3 11 33 9.8 29.4 NA NA NA NA 7.5 22.5Environmental 6 14 84 10.8 64.8 NA NA NNA NA 5 30Economic 4 6 24 6.6 26.4 NA NA NA NA 2 8Total Score = 221 203.6 120.5Big Spring Public Safety 10 8 80 8.3 83 7.5 75 NA NA 6 60Social 3 10 30 9.8 29.4 9 27 NA NA 7 21Environmental 6 15 90 10.8 64.8 7.8 46.8 NA NA 5 30Economic 4 6 24 6.6 26.4 4.4 17.6 NA NA 2 8Total Score = 224 203.6 166.4 119Twin Buttes Public Safety 10 7.9 79 8.3 83 NA NA 6.7 67 6 60Social 3 10.9 32.7 9.8 29.4 NA NA 7.2 21.6 7 21Environmental 6 14.5 87 10.8 64.8 NA NA 4.6 27.6 5 30Economic 4 6 24 6.6 26.4 NA NA 4 16 2 8Total Score = 222.7 203.6 132.2 11918
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