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Concrete Water Storage Tanks
By: Ryan J. Erickson, P.E., Project Engineer,
Sunrise Engineering, Inc.
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Concrete Tank Experience
Municipalities
Subdivisions
Extensive experience in Wyoming,Idaho, Utah
Range from 100,000 to 3 million
gallons
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Construction Cost Analysis
Steel Bolted
200,000 gallons =
$175,000
1 Million gallons =
$500,000
Glass Lined Steel
200,000 gallons =$300,000
1 Million gallons =
$700,000
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Construction Cost Analysis
Prestressed Concrete
1 Million gallons = $925,000
Concrete 200,000 gallons = $270,000
1 Million gallons = $650,000
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Cost Analysis
Cost Per Gallon 200,000 Gallon
Steel = $0.88
Glass Lined Steel = $1.50
Concrete = $1.35
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Cost Analysis
Cost Per Gallon 1 Million Gallon
Steel = $0.50
Glass Lined Steel = $0.70
Prestressed Concrete = $0.93
Concrete = $0.65
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Concrete Pros & Cons
Pros
Durability
Design Flexibility
Corrosion
Resistance
Burial Ability
Freeze Protection
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Concrete Pros & Cons
Pros
Local Materials
Lower Freight
Costs
Low Maintenance
Costs
Long Service Life
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Concrete Pros & Cons
Cons
Complex Design
Complex
Construction
Quality Control
Material Delivery
Upfront Cost
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Field Evaluations
Flood Plain
Ground Water
Surface Water Access
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Design Considerations
Burial
Elevation
Security
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Design Considerations
Seismic Zone
Structural
Calculations
Overflow
Venting
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Types of Construction
Cast in Place
Local Materials
Pumps required
Additives
Steel Reinforced
Steel Cover
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Types of Construction
Cast in Place
Seismic Standards
ACI Design
Floating Lid
Neoprene Pad
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Types of Construction
Cast in Place
Hatch Size
4 x 4 Bilco
Form Removal
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Types of Construction
Cast in Place
Water Stop
9 PVC
Cold Joints
Vibrate Layers
Xypex Patch
Seepage
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Types of Construction
Prestressed concrete
Monolithic or Panel Walls
Thinner Walls
Post-Tensioned Steel Tendons
Bottom
Walls
Roof
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Types of Construction
Prestressed concrete
Larger Column Spacing
Higher Upfront Cost
1 Million Gallon Minimum
Longer Service Life
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Operation & Maintenance
Cleaning
Flush
Patching
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Conclusion
Concrete Tanks
Higher Upfront
Costs
Low Maintenance
Bulletproof
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Conclusion
Concrete Tanks
Project History
Service Life