Circular Tanks

Circular precast post-tensioned concrete tanks are utilized for a variety of water and wastewater purposes, including potable water storage, fire protection water storage, clarifiers, digesters, and more.

Features & Benefits

  • Above grade or buried
  • Walls remain in constant compression
  • “Green” roof option
  • Aesthetic versatility
  • Cost savings
  • Higher quality concrete
  • Faster installation
  • Smaller environmental footprint

Circular Post-Tensioned Concrete Tanks

Circular tanks can also be configured to be a tank within a tank for dual use efficiency.

Exterior and interior walls are post-tensioned and designed for differential loading.

Whether it’s a tank purposed for fire protection, a potable water solution or water treatment accessory, team Dutchland can manage your water safely and affordably.

Technical Details

  • AWWA D115 Standard or ACI 350
  • Panelized precast walls
  • Post-tensioned structure
  • Horizontal Multi-strand Bonded Tendons
  • Designed for 5,000 – 6,000 psi 
  • Tanks up to 50 feet tall
  • Open-top or roofed (concrete or geodesic dome)
  • Cast-in-place base slab


  • Aeration
  • Anoxic Reactors
  • Bioreactors
  • Clarifiers
  • Combined Sewer Overflow
  • Digesters
  • Effluent
  • Equalization
  • Fire Protection
  • Post-Equalization
  • Pre-Equalization
  • Sequential Batch Reactors
  • Water Storage