PICAYUNE STRAND RESTORATION PROJECT PUMP STATIONS PRELIMINARY DESIGN
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PICAYUNE STRAND RESTORATION PROJECT
PUMP STATIONS PRELIMINARY DESIGN
South Florida Water Management District Water Resources Advisory CommitteeApril 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
ELEMENTSELEMENTSMILES
I-75
0 2
Management Roads
810 cfs
2650 cfsPrivate Lands Levee
POI N leveePOI SE leveePOI SW levee
MILLE
R
CA
NA
L
FAK
A U
NIO
NC
AN
AL
MER
RIT
T
CA
NA
L
PR
AIR
IE
CA
NA
L
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 4.9 5.9Faka Union Canal 4.9 5.9Merritt Canal 5.2 8.0
Schedule
Initiate Design 12/04
Complete Design 11/06
Start Construction 1/07
Construction Complete 12/08
Operational Testing 4/09
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
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