Work Plan - Final - Maricopa County Department of Transportation

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• Research and identify any water quality issues for the project, includingidentification of potential jurisdictional waters (JDs) and permit needs,• A jurisdictional delineation will not be completed, However, completedexisting jurisdictional delineations shall be identified,• Make reasonable effort to obtain documents available from previouslyapproved JDs and Section 404/401 permitting through developer actions,1.3.5. Hazardous Materials• Obtain a regulatory database report to determine the potential for hazardousmaterials that may adversely affect the project area,• A windshield field review will occur.1.3.6. Noise Impacts• Preliminary qualitative evaluation of potential noise impacts/potentialreceptors,• No measurement or modeling will be conducted.1.3.7. Air Quality• Preliminary evaluation for compliance with national standards, includingMobile Source Air Toxins (MSATS) and impacts to regional non-attainmentareas,• No measurement or modeling will be conducted.1.3.8. Documentation• Develop an environmental constraints map,• Format the EO as a separate document for easy future reference,• The EO will be notated to clearly state that it reports and summarizes existingdocuments and dates, to the extent they are available, and that new studieswere not conducted.1.4. Drainage OverviewProduct: Technical Memorandum #3 – Conceptual Drainage ReportThe Consultant will prepare a Drainage Overview Report for the corridor feasibilitystudy area using existing available studies and data, from Flood Control District ofMaricopa County (FCDMC), Arizona State Land Department (ASLD), Town ofBuckeye, MCDOT, Arizona Department of Water Resources (ADWR), CentralArizona Project (CAP) and developers, as well as limited field review, and existingmapping and hydrology/hydraulics. Data obtained and evaluations conducted under thistask will be used in both Phases of this study. The Consultant will:• Obtain and Review Existing Reports including:o FCDMC Area Drainage Master Studies (ADMS) and Area DrainageMaster Plans (ADMP) that address drainage conditions along the corridor,
o CAP drainage studies that address drainage conditions along within oradjacent to the corridor. Arizona Department of Transportation (ADOT)drainage studies that address drainage conditions adjacent to the corridor(I-10),o Research, identify, and summarize other relevant information fromFederal Emergency Management Agency (FEMA), FCDMC, andmunicipalities,o ADWR groundwater level mapping (most current mapping), includingknown fissures,o Regional context flood and geomorphic hazard maps based on existingfloodplain reports and geologic mapping within and adjacent to thecorridor.• Determine the existing off-site concentration points and flow magnitudes forthe 100-year storm event using existing data and studies (the determinationwill be based on simple area/graphic interpolations).• Where necessary, use regional regression equations to calculate the drainageflows affecting the study (hydrologic modeling is not included in this scope ofwork).• Contact appropriate personnel from MCDOT, FCDMC, Town of Buckeye,ADWR and Arizona Geological Survey to identify and summarize pastdrainage problems, subsidence and fissure areas.2. Phase II – Develop Candidate Alignments and Preferred AlignmentIn this phase, based on the issues and constraints identified in Phase I, the Consultant willdevelop candidate alignments. Layout of these alignments will be based on a minimum corridorright-of-way width of 200-feet. Right-of-way requirements associated with parkway-to-parkwayand parkway-to-freeway interchanges will also be indentified based on the latest designguidelines developed by MCDOT and ADOT. Using information acquired in the previoustasks, the Consultant will develop and evaluate in more detail the candidate alignments forthe Hidden Waters Parkway Corridor. The Consultant will identify a framework of evaluationcriteria that will be presented to the Technical Advisory Committee) TAC for review. Using theframework, the Consultant will prepare an alternatives evaluation matrix. Based upon theevaluation, the Consultant will recommend a preferred alignment to be carried forward forfurther refinement. The Consultant and MCDOT will jointly conduct Public Open Houses at aconvenient location(s) in the study area to present the candidate alignments study and preferredalignment recommendations.2.1. Development and Evaluation of Candidate AlignmentsProduct: Technical Memorandum #4 –Candidate Alignments and EvaluationBased on evaluation of the candidate alignments (fatal flaw in Phase I), theConsultant will carry out a more detailed analysis of the no-build alternative and up tothree candidate alignments. This analysis will address engineering feasibility,environmental compatibility, economic viability, compliance with Title VI of the Civil
Page 1 and 2: Hidden Waters Parkway NorthCorridor
Page 3 and 4: AbbreviationsArizona Department of
Page 5 and 6: 2.0 Study Area Definition/Project U
Page 7 and 8: 3.0 Key IssuesThe intent of this st
Page 9 and 10: 3.2 DrainageThe Hidden Waters Corri
Page 11 and 12: 5.0 Study Process and ApproachThe H
Page 13 and 14: Figure 5-2 Project ScheduleHidden W
Page 15 and 16: Arizona Parkway Intersection/Interc
Page 17 and 18: 8.0 Criteria for Evaluation of Alte
Page 19 and 20: xHiddenWaters Parkway: Interstate 1
Page 21 and 22: xAttendeesHidden Waters Parkway: In
Page 23 and 24: x444AgendaHidden Waters Parkway:Int
Page 25 and 26: xHiddenProject GoalsWaters Parkway:
Page 27 and 28: xHiddenTechnical Advisory Committee
Page 29 and 30: x111Scope of WorkHidden Waters Park
Page 31 and 32: ContentsStudy Overview ............
Page 33 and 34: the first step in the development p
Page 35 and 36: • Topography from existing source
Page 37: Product: Technical Memorandum #2 -
Page 41 and 42: 3.1. Technical Advisory Committee (
Page 43 and 44: o Douglas Rancho Toyota Proving Gro
Page 45 and 46: • Study Purpose/Need,• Study Go
Page 47 and 48: The Consultant will prepare the cor
Page 49 and 50: x222Project NotesProject Budget:$50
Page 51 and 52: Type First Name Last Name Title Com
Page 53 and 54: HIDDEN WATERS PARKWAY CFS: QUALITY
Page 55 and 56: verification of verbal conversation
Page 57: □ Preferred Alignmento Standard c

Work Plan - Final - Maricopa County Department of Transportation

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