2023/04/19 Council Agenda Packet

I. Site Investigation and Data Collection Consultant will review available relevant project documents, conduct a site visit, and obtain existing utility records. Consultant will survey, prepare design basemaps, and perform a geotechnical investigation. 1.1. Review available documents and research and field locate existing utilities Consultant will review and compile any relevant existing documentation on the project, anticipated to include existing city utility records, design reports/studies, and environmental or soil information. Consultant's design team members will conduct a site visit of the proposed project areas to understand field conditions and design challenges. The Consultant will coordinate with the Client prior to conducting any site visits and, if desired, may participate to share project knowledge and concerns. Existing conditions will be documented, and site photographs taken. The Consultant will prepare a memorandum to summarizing findings from review of existing documentation and significant discussions and observations from the site visits. Consultant will research utilities, coordinate and obtain records from utility agencies on existing facilities and confirm agency requirements. Consult will review record drawings and contract with a utility locating service to field mark the horizontal location of existing utilities, including city utilities and services, within the anticipated project limits. Consultant will prepare a matrix spreadsheet summarizing the existing utilities for use during design in identifying potential conflict and actions for each location. This document will be updated as design progresses to track utility coordination activities and/or whenever new information becomes available. 1.2. Topographic survey and basemapping Consultant will perform survey and mapping sufficient for final design of proposed improvements along the streets within the five project locations. The topographic survey base mapping area and limits for each of the five locations are defined as follows: • Beverly Lane Waterline Replacement: Full street right-of-way between 74th St. SE to 76th St. SE, inclusive of intersections. • 75th Street SE/Evergreen Way Waterline Replacement: Full street right-of-way for intersection including one hundred feet beyond the intersection on each street leg. • Evergreen Way Waterline Replacement: Full street right-of-way from and including the 52nd St. SE intersection to 550 feet south of that intersection. • Interstate 5 bridge Waterline Replacement: Topographic feature along bridge necessary to replace existing waterline attached to bridge structure between, and including a 50-foot-wide portion of street, E. Grand Ave. and 4th St. SE • Madrona Avenue Waterline Replacement: 2