David Evans and Associates, Inc. 11/18/2024

Page 45 of 59 City of Everett Merrill & Ring Bridge Replacement Deliverables: x Draft Drainage Report at 60% PS&E phase (one [1] electronic PDF copy) x Final Drainage Report at 90% PS&E phase (one [1] electronic PDF copy) 12. 2 TS&L and Alternative Design Study Perteet will prepare horizontal and vertical alignment alternatives for the project to support the analysis of up to three bridge alignment alternatives. The horizontal and vertical alignments for the project will be evaluated as part of the civil alternatives analysis. An opinion of cost will be prepared based on the alternatives. The opinion of cost will be based on unit prices and incorporate about a 30% contingency to account for the level of completeness of plan preparation, and to reflect experience on similar projects within the region. Perteet will prepare the Civil, Roadway, Water & Drainage Design section of the TS&L Report and deliver to David Evans and Associates, Inc. to be compiled with the rest of the TS&L Report. The Civil, Roadway, Water & Drainage Design section will include the Roadway, Water, and Drainage Design criteria, design parameters, a proposed cross section figure, and other key design elements necessary for determining the preferred alternative. The Civil, Roadway, Water & Drainage Design section of the TS&L Report will include a recommendation for the approximate horizontal and vertical alignments. The exact alignments will be fixed during future design phases. Selection of the preferred alternative will be made by the City stakeholders, and the preferred alternative will be carried forward in the design. Deliverables: x Draft and Final versions for up to three (3) alternative roadway plans and profiles as roll plots (PDF) x Draft and Final versions of the Opinion of Cost for each alternative (Excel) x Draft and Final versions of the Civil, Roadway, Water, & Drainage Design section of the TS&L Report (Word) x Written responses to City comments on the Draft deliverables 12.3 Plans, Specifications, and Estimate Construction plans, specifications, and an opinion of cost will be prepared based on the recommendations identified during the alternatives analysis and the stormwater design documentation tasks.