RFP_-_City_of_Daytona_Beach_Stormwater_Model_and_Watershed_Management_Plan.docx

City of Daytona Beach Stormwater Model and Watershed Management Plan

Scope: The intent of this project is to develop a citywide stormwater Hydrologic and Hydraulic (H&H) model, evaluate potential flooding risks (current and future), and develop conceptual flood mitigation solutions. The city covers approximately 70 square miles and is home to approximately 65,000 residents, 55% of which are considered Low and Moderate Income (LMI). In addition, more than 21% of the population is aged 65 years and over.

This project furthers the Community Development Block Grant’s National Objective in that it benefits LMI persons. It also benefits the sub-objectives of housing and job retention activities by giving the City the tools to mitigate flood impacts to housing and employment centers. The median age of housing stock in Daytona Beach is 40 years. Older housing stock, more prevalent in LMI census tracks, is particularly susceptible to significant flooding and wind damage, as it was constructed before current building codes. If the cost to repair a home after a hurricane exceeds 50% of the pre-damaged value homes must be demolished, placing a great financial burden on LMI persons. LMI persons, many elderly and on fixed incomes, do not have the resources to re-build and have difficulty finding comparable housing that they can afford. This project also furthers the State of Florida’s Hurricane Ian Action Plan for Disaster Recovery by giving the City of Daytona Beach the tools to plan for mitigation projects in vulnerable neighborhoods. The Action Plan’s main focus is preserving housing stock. A higher level of modeling detail will be incorporated in areas that are prone to flooding including residential developed areas with a focus on LMI areas and commercial areas, on which a large portion of LMI residents depend on for employment.

It will be incumbent upon the selected consultant to work with the City to determine how best to address the needs and goals identified above in the most cost-effective way.

Section 2: List of Potential Services

The following list provides guidance on some tasks that will be required as part of the scope of work. Services may include, but are not limited to:

1) Data Collection and Cataloging

· Kickoff Meeting

· Data Collection

· Data Cataloging

2) Project Geodatabase Development

· Existing Model Data Migration

· Watershed Boundary Delineation

· Topographic Void Identification and Corrections

· Historic Flooding Data

· Model Network Development and Data Capture

· Field Data Acquisition Needs

· Topographic Void Update

· Field Data Acquisition (Reconnaissance / Verification)

· Field Data Acquisition (Professional Survey)

· H&H Parameterization

· Memorandum

3) Model Execution, Calibration and Verification

· Generation of the model from GIS

· Model Setup and Initial Simulations

· Flood Profiles and Level-Pool Floodplains

· Stabilization (Debug)

· Initial Conditions

· Update to model based on tasks above

· Data Collection and Storm Selection

· Model Calibration and Verification

· Update model based on Task 3.8

· Model Execution for design storms

· Level Pool Floodplain Development for Design Storms

· Floodplain Mapping (Transitional Floodplains)

· Level of Service (LOS) for Buildings and Roadways

· Task Memorandum

4) Future Conditions Analysis

· Rainfall and Sea Level Rise Scenario Development and Simulations

· Vulnerability Evaluation

· Task Memorandum

5) Conceptual Design Alternatives

· Conceptual Design Alternative Development (based on City input and LOS analysis)

· Memorandum

6) Deliverables: The final product deliverables will generally include:

· Existing Conditions Model Files

· Project Geodatabase (GIS that houses the model data in a geospatial format)

· Mapped Inundation Areas for the simulated storms (i.e. floodplain polygons)

· Master Plan Summary Report that documents the following:

· model development efforts,

· calibration/verification

· storm simulation results

· inundation area maps

· flood protection level of service across the city for the simulated storms

· future condition vulnerabilities (SLR scenarios and potential increases in rainfall) Section 3: Schedule – To be determined by Volusia County

The following is the anticipated Project Procurement Schedule. The below schedule is subject to change and is only intended as a guideline.

Date Issue RFP

Date Hold Pre-proposal Meeting

Date RFP Due Date/Open RFPs

Date Evaluation (Selection Committee Meeting)

Date Begin Contract Negotiations

Section 4: Proposal Evaluation Criteria and Submittal Information

1. Key Personnel Qualifications & Experience (Weight=30) Provide information regarding qualifications and experience as they relate to Stormwater Modeling and Watershed Management Plans. Provide resumes for Key Personnel. The following roles are considered Key Personnel:

· Project Manager

· Designer of Record

· Hydraulic Modeler Proposer may include up to three additional resumes for personnel not specifically identified in this criteria. Note whether individuals are performing multiple functions.

Individual resumes are limited to one page and should include the following information:

· Description of the individual’s proposed Project role

· Number of years of experience

· Office location

· Education, professional licenses and/or certifications

· Experience relevant to the individual’s proposed role on the Project, the individual’s title and role on each listed project and how their past performance on previous projects will benefit this Project

2. Project Manager Past Performance (Weight=20) Provide two project examples of Citywide Stormwater modeling design projects completed by the Project Manager. In order for a project example to be considered eligible, the proposed Project Manager must have served as the Project Manager on the project example. Additional consideration will be given to projects completed within the past 10 years with design capacities and operation similar to proposed project. Each project example will be limited to one page. Provide a project reference for each project and provide the following information at a minimum:

· Name of Owner

· Owner reference and contact information (reference should be for the project manager or someone familiar with the project)

· Contract value

· Dates work was performed

· Project description

· Any challenges which occurred and how they were overcome

3. Designer of Record Past Performance (Weight=15) Provide two project examples of Citywide Stormwater modeling design projects completed by the Designer of Record. In order for a project example to be considered eligible, the proposed Designer of Record must have served as the Designer of Record on the project example. Additional consideration will be given to projects completed within the past 10 years with design capacities and operation similar to proposed project. Each project example will be limited to one page. Provide a project reference for each project and provide the following information at a minimum:

· Name of Owner

· Owner reference and contact information (reference should be for the project manager or someone familiar with the project)

· Contract value

· Total change order amounts for design and construction

· Dates work was performed

· Project description

· Any challenges which occurred and how they were overcome

4. Project Approach (Weight=35) Provide a maximum four page narrative demonstrating the Proposer’s understanding of the project issues and objectives and how the Proposer intends to ensure the scope, budget and schedule will be met. Identify what the Proposer considers to be the greatest challenge and how they plan to overcome the challenge/minimize risk.