2012/03/21 Council Agenda Packet

City of Everett March 12,2012 Page 2 5 SCOPE OF SERVICES The purpose of our services is to assist the City with design and construction support of the stream and bank stabilization measures in the project reach. Specifically, our proposed scope of services includes the following: TASK 1-DATA COLLECTION AND KICKOFF GeoEngineers will collect and review available information regarding the tributary and Powder Mill Gulch in the vicinity of project area. The information will include available reports, published papers,geographic information system (GIS) data layers, aerial photographs, Light Detection and Ranging (LiDAR) data, channel profile survey,topographic survey, hydrologic, hydraulic, geologic, geomorphic, biologic, City staff observations, and other data pertinent towards this project. Based on our prior work, this effort is expected to be minimal and efficient for GeoEngineers to complete. As part of this task GeoEngineers will also participate in kickoff meetings with the City and separately with select City staff and regulatory agency personnel (if needed). The meetings are intended to provide sufficient time for our team to meet the participants and listen to the various goals, objectives, constraints,desires,concerns,etc.that will affect the project outcomes. Assumptions ■ The City will provide a project base map in AutoCAD format: • The City will complete topographic survey within the expected extents of the stream stabilization measures (including the project reach, approximately 100 feet upstream and downstream of the project reach,and extending a minimum of 50 feet landward of the top of bank on each side of the gulch (or best possible). The survey will specifically include survey of a minimum of 12 channel cross-sections at locations to be indicated by GeoEngineers following the site visit. • The City will complete a utility locate within the project reach and will survey and note any utilities and other infrastructure on the base map. ■ The City will delineate ordinary high water mark (OHWM), wetlands, inventory and assessment of Priority Habitats and Species (PHS) cultural resources survey, and any other critical areas that are determined to be necessary for design development and permit approval,and will indicate these features on the base map. • The base map will indicate relevant property boundaries. • The City will set and/or reference a minimum of two project benchmarks denoting horizontal and vertical survey control,and indicate this information on the base map. ■ The City will provide a survey of the channel profile of the tributary from the confluence with Powder Mill Gulch to 100 feet upstream of the culvert crossing at 25th Avenue West. • The City will provide any available hydrologic reports or studies for adjacent developments or properties. • City staff will facilitate meetings and invite Geoengineers and all other attendees as necessary. is City staff will identify project goals, objectives,and key constraints for project. GEOENGINEERSI File No.06G1-086-02 33