PICAYUNE STRAND RESTORATION PROJECT PUMP STATIONS PRELIMINARY DESIGN South Florida Water Management District Water Resources Advisory Committee April 6, 2006

Contents  Project Overview  Introduction to Pump Stations  Pump Station Preliminary Design  Schedule  Issues and concerns  Discussion

U.S 41 6L levee Recommended Plan 3 Spreader Canals 3 Pump Stations Canal Plugs 80% of Roads Removed Primary All Weather Roads Secondary Roads Flood Protection Levees ELEMENTS MILES I Management Roads 810 cfs 2650 cfs Private Lands Levee POI N levee POI SE levee POI SW levee MILLER CANAL FAKA UNION CANAL MERRITT CANAL PRAIRIE CANAL 1250 cfs

Design Activities Preliminary Design Pump Stations Road Removal BODR Development Spreader Canals Protection Levees

Pump Stations  Sized for 100 Year Storm Event  Merritt – 810 cfs  Miller – 1250 cfs  Faka Union – 2650 cfs  Designed to Meet CERP and SFWMD Standards  155 mph wind load  Diesel drives  Ten day fuel supply  Minimal Reliance on Outside Utilities  Diesel engines and generators  Remote Control and Operations Capability

Hydrologic Design Criteria  Match Canal Stage Hydrographs at I-75 For 5-Day, 100-Year Design Storm Event  No Pump Operation Below Minimum Canal Levels at I-75: Wet Season Dry Season (ft NAVD88)(ft NAVD88) Miller Canal Faka Union Canal Merritt Canal

Schedule Initiate Design12/04 Complete Design11/06 Start Construction1/07 Construction Complete12/08 Operational Testing4/09

Pump Stations Opinion of Probable Cost  PIR (Oct 2004) $67.5M (25% Contingency)  BODR (Sept 2005) $76.8M (30% Contingency)  Prelim Design (Mar 2006) $109.5M (25% Contingency)  Differences (BODR vs. Current Estimate) :  Installation of Major Equipment Added$5.6M  Additional Design Detail Reveals Additional Costs$1.5M  Use of Stainless Steel (Per District Stds.)$1.2M  Poor Soil Conditions – Requires More Site Preparation$9.2M  Additional Contingency Related Dollars$8.6M  Concrete Volume & Cost Per CuYd Under Estimated$6.6M  Potential Savings by using portable pumps for redundancy$7.0M

Stakeholder Issues and Concerns (Pump Stations)  Capacity and operation of pump stations  Hardy Pit is not a storage reservoir  Redundant pump capacity included  Pump Station operation will mimic existing structures  Impacts to wildlife due to noise, lighting, and towers

Stakeholder Issues and Concerns (other Project Features)  Location and sizing of protection levees is being addressed in a separate BODR.  Project will not change water quality  Working with DOF ; recreational opportunities will be consistent with DOF Land Management Plan  Additional modeling is being done to determine if there are impacts to Tamiami Trail  Pump stations will be operated in accordance with the Permit criteria and Operation Plan  All modeling will be completed before Final Design  Uplands and Wetlands were both used as criteria in determining Project benefits