26th to 34th Street, West Avenue to Bay Avenue Flood ......1 Hour Rainfall 245 Acre Study Area...
Transcript of 26th to 34th Street, West Avenue to Bay Avenue Flood ......1 Hour Rainfall 245 Acre Study Area...
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26th to 34th Street, West Avenue to Bay Avenue Flood Mitigation Design FINAL DESIGN PRESENTATION
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Outline
Overview of Project
Construction Plans
Next Steps
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Project Overview Improve Nuisance Flooding
Pave Deteriorated Streets and Alleys
Replace Old Drainage Infrastructure
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Tide Height at NOAA Station 8534720 NAVD88
◦ Average Tide Height: -0.109
◦ Average High Tide: 1.892
◦ Average Low Tide: -2.189
◦ Winter Storm Jonas (1/23/16)
◦ Maximum High Tide: 5.226
MLLW ◦ Average tide height: 2.504
◦ Average High Tide: 4.507
◦ Average Low Tide: 0.425
◦ Winter Storm Jonas (1/23/16)
◦ Maximum High Tide:7.841
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Tide Height at NOAA Station 8534720
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24 Hour Rainfall 245 Acre Study Area
Comprising mostly residential plots, some commercial, large areas of impervious roadway
1 Year Event - 2.68 Inches of Rain - 14.67 Million Gallons of Runoff
2 Year Event - 3.27 Inches of Rain - 18.04 Million Gallons of Runoff
5 Year Event - 4.24 Inches of Rain - 23.53 Million Gallons of Runoff
10 Year Event - 5.08 Inches of Rain - 33.79 Million Gallons of Runoff
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1 Hour Rainfall 245 Acre Study Area
Comprising mostly residential plots, some commercial, large areas of impervious roadway
1 Year Event - 1.2 Inches of Rain - 7.98 Million Gallons of Runoff
2 Year Event - 1.5 Inches of Rain - 9.97 Million Gallons of Runoff
5 Year Event - 1.9 Inches of Rain - 12.64 Million Gallons of Runoff
10 Year Event - 2.2 Inches of Rain - 14.64 Million Gallons of Runoff
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Proposed Design
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Pumping Design Approximately 30,000 GPM Evacuation of Water
3 Phase Power Supply
“Booster” Pump at 30th and Haven
Ductile Iron Piping
Pump Control Panel Linking to City SCADA System
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Pumping Design
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Pump Locations
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Pump Locations
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During Construction Driveway access may be interrupted for short periods of time
Pipe work will likely be done first with uneven roadway conditions
Paving is highly dependent on temperature and will likely not begin until the spring
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Next Steps Permits are Submitted and Pending
Finalize Contract Plans
Advertise and Accept a Bid