FLOOD10391 ‎(2)‎

• County: Boulder
• Community: Boulder
• Stream Name: South Boulder Creek
• Title: Proposal, South Boulder Creek Floodplain Study Hydrology and Hydraulic Analyses, RFP No 17-2003
• Date: 3/14/2003
• Prepared For: Boulder Department of Public Works Utilities Division
• Prepared By: Ayres Associates
• Floodplain - Doc Type: Floodplain Report/Masterplan

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AYRES

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INTRODUCTION

We understand that the purpose of this project is to accurately and clearly define the
flooding characteristics of South Boulder Creek from the mouth of the canyon at
Eldorado Springs to its confluence with Boulder Creek. The results of this study will be
used to develop non-structural (management) and structural flood mitigation options
with the process leading to a public decision on implementing a flood mitigation plan for
this area. Our approach is to provide a high quality, realistic model of hydrology and
hydraulics and floodplain risk using proven, state-of-the art technology.

We realize that the most meaningful and practical flood mitigation alternatives evolve
from a valid base of knowledge that the public understands and accepts. As such, our
mapping, hydrologic/hydraulic methods, risk analysis, and related key activities will be
prepared for a seamless transition into the alternatives definition and evaluation.

The "Proposed 'Scope of Work" (Section III of the RFP) describes a reasonably
exhaustive level of effort needed to accomplish the goal described in the "Introduction"
(Section I of the RFP). It allows the flexibility needed to perform those tasks that are
technically justified to comprehensively define the flooding problem. The RFP
technical appendices describe in more detail what can be done with unrestricted
resources. To control the scope of the study and to maximize its value, we propose
that some of the work items in the appendices be performed only if judged necessary,
if funding is available, and for an additional fee that will be determined at that time.

PROJECT ApPROACH I PROJECT MANAGEMENT

Ayres Associates proposes to complete work for the South Boulder Creek Floodplain
Study using the resources of our two Colorado offices with assistance from four
subconsultants. Mr. Doug Laiho will provide project management from our Louisville
office, which is just a few minutes down U.S. Highway 36 from the site. He is also a
resident of south Boulder, giving him a keen appreciation of the people and issues and
allowing him to be available at virtually any time. Mr. Laiho will coordinate activities of
in-house staff as well as those of our subconsultants. He will be the City's main point
of contact and expects to work closely with City staff to coordinate activities, schedule
efficient completion of tasks, and provide complete communications.

Ayres Associates has well-defined procedures for controlling schedule and costs. Mr.
Laiho will prepare a detailed work plan and schedule showing activities and time
allocation for each TasklSubtask. The work plan and schedule are important
management tools for ensuring the completion of quality work on time and within budget.

The work plan will indicate delivery of draft text documentation as each of the three main
components of work (hydrology, hydraulics, and risk assessment) are completed. After
the fourth public meeting, these draft reports will be consolidated into a single document
for final publication. The form of model deliverables and support documentation will be
determined after the close of work on this phase of the project and will be compatible
with future uses by the City and whatever company is retained to evaluate mitigation
alternatives during the next phase.