Otak, Inc 8/15/2016 - Laserfiche WebLink

Exhibit A Continued Deliverables: • Draft and Final Critical Areas Study Task 5 — Design Development and Alternatives Evaluation The Otak team will prepare site plans and details of up to 3 alternatives for repairing the erosion and scour problems. For each alternative,materials will be identified and quantified,and estimates of the construction costs will be provided.The recommendations for managing interior drainage will be described.The environmental impacts will be described,and the potential permitting implications (on schedule and mitigation requirements)will be estimated. Constructability issues will be evaluated.The utilities potentially impact by the project will be listed,the potential impacts described,and the concerns/constraints of each utility presented.The design development will be presented in a report with drawings showing the areal extent of the various alternatives,details of each alternative,and a description of the basis of the cost opinions.Recommendations for Phase 2 final design,induding geotechnical analyses will be induded.The final Phase 1 geotechnical report will be provided as an appendix. Deliverables • The Otak team will prepare a Phase 1 Design Alternatives Technical Memo. Assumptions • The DRAFT Design Alternatives Technical Memo will be submitted to DD5 prior to the fourth coordination meeting(Task 1.2),and the FINAL Design Alternatives Technical Memo will be submitted within two weeks of receiving DD5 comments on the draft memo. • The City will provide information on previous Army Corps authorizations and maintenance activities along this portion of the dike to identify the historical dike footprint. Identification of the historical dike footprint will support the analyses of agency permitting requirements. DD5 Dike Repairs and Improvements Project 10 otak K\project\32700\32758\Contract\Scope for Phase 1—DD5 dike repairs final 7-22.docx