Brown and Caldwell, Inc. 9/20/2023

PGSF WMVD Storm and Combined Sewer Design Scope of Work 08-25-2023 2 of 41 Category 2: Sensitive information Category 2: For official use only / disclosure permissible by law. Phase 515 Rehabilitation Method and TM for Existing BNSF Crossing Phase 520 60% design of crossings Phase 530 BNSF permit and supporting TM Final Design Phase 600 Final Design Management Phase 610 Final design Bid Period Services Phase 710 Bid Period Services Unanticipated Services Phase 810 Unanticipated Services Exhibit B – Budget provide additional work breakdown in to additional subphases and tasks for project tracking and control. Scope Descriptions The phase descriptions below include an objective statement, activities/approach, task assumptions, and work products that designate which service or item will be provided by the BC team. City staff activities required to complete tasks are noted where applicable. Scope assumptions applicable to the overall project are described below. Project-level Assumptions: • All deliverables will be delivered in electronic formats, with no printed copies. Bid documents will be digitally signed and sealed per WAC requirements. • The City’s PM will coordinate location for, and City staff participation in project meetings and workshops where noted. • Unless otherwise specified, meetings and workshops will be held virtually. • City PM will provide timely, consolidated staff review comments on draft work products. City review periods will be identified in project schedules. • Mileage for in person meetings and site visits are budgeted assuming the visits are to the Port Gardner site. • Meeting agendas and notes will be prepared by BC. • The City will provide any available plans, construction records, asset information, operational data, existing easement information, easement, property line locations, and related information for water, sewer, and stormwater lines adjacent to all work sites. BC will submit data requests for information that is known to be needed. • The draft scope does not include a detailed seismic evaluation of the proposed infrastructure and adjacent steep slopes and their possible failure modes. • Past studies and reports, including condition assessments, form the basis on which this scope of work has been planned. Discovery of new, unforeseeable, or latent issues associated with the existing site and facilities as uncovered through additional data collection (Phase 210) may result in need for project plan, scope, and budget changes. It is assumed that structures to be reused as described herein are salvageable in their current form without improvements or major structural modifications and support. • For budgeting purposes, it’s assumed the duration of the overall Project will be September 2023 through June 2026. The actual project schedule and schedule updates will be