8b. Presentation - Departure Drive Drainage Project
Item No. 8b_supp Date of Meeting July 27, 2021 Departures Drive Drainage Design Authorization Project Scope Scope Items: Remove and replace existing catch basin Install new external storm drainage piping connecting to arrivals drive drainage system Replace existing expansion joints Repave and reseal departures drive 2 Existing Conditions Leak Mitigation Gutter Ponding Water 3 Project Budget and Schedule Budget: Key Schedule Milestones: Original Budget: $600,000 Design Complete: Q3 2022 Revised Budget: $1,880,000* Construction Start: Q1 2023 In-Use Date: Q2 2023 *Project alternatives were analyzed during status I, however the estimates from those alternatives were inadvertently mixed up. The effect was the correct alternative but the wrong budget was approved. This revision reflects the budget for the approved alternative. 4 Cone of Certainty We are here 5 Project Risks RISK DESCRIPTION PROBLEM IMPACT MITIGATION PLAN Arrivals drive Existing power and M H Pothole during design to connection point communication determine feasibility; scope may not be infrastructure may change would require feasible prohibit gravity line additional budget connection Existing system Verify added storm M H Determine storm water flows capacity is drain connection will during design limited not put the receiving system past capacity 6
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