Drainage & Stormwater
Phoenix Precast is here to help through the entire design process. We make sure you get exactly what you need for drainage & stormwater precast structures. Providing structures for all size jobs and complexity. Our precast drainage structures are DOT approved and we have supplied the New England area precast products for over 30 years.
Drainage & Stormwater
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Area Drains - Drop Inlets (13)
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2 Ft Dia Area Drains
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2 Ft Dia Cleanout Drain
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2 Ft Drop Inlet Base
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2 Ft Drop Inlet Base With Top Slab
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2 Ft Drop Inlet Riser
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2 Ft Square Area Drains
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2 Ft Square Area Drains with Knock-Outs
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2 Ft Square Drop Inlet
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2 Ft x 4 Ft Drop Inlet
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30 In Diameter Area Drain
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30in Diameter Drop Inlet Base
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30in Diameter Drop Inlet Riser
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NHDOT Drop Inlet Type DB
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Box Culverts (6)
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Three Sided Box Culvert With Integral Footings
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Three Sided Box Culvert With Seperate Footings
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Open Top Box Culvert
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Small Open Top Box Culvert
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Box Culvert Standard Details
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Four Sided Box Culvert
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Box Structures (24)
Custom fabrication and design services for all types of fabricated metal.
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Custom Combination Headwall - OCS Structure
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Custom Inlet Control Structure
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Custom High Volume OCS
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Custom Large Square OCS
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Custom Large Square OCS with Detention Weir Wall
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Custom Multi-Stage OCS
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Custom OCS with Inlet Grate Support Shelf Cast In
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Custom OCS with Detention Weir Wall
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Custom OCS with Extended Base
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Custom OCS with Extended Base And Top Grate
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Custom OCS with Extended Base And Slide In Weir Plate
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Custom Angled Structure for Large Diameter Pipes
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Custom Angled Structure for Parallel Pipes
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1000 Gallon 2-Compartment HS-20 Oil & Water Separator
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1000 Gallon 3-Compartment HS-20 Oil & Water Separator
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1500 Gallon 2-Compartment HS-20 Particle Separator
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1500 Gallon 3-Compartment HS-20 Oil & Sediment Separator
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Generic 3-Compartment HS-20 Oil & Sediment Separator
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Generic Catch Basin HS-20 Oil & Grit Separator
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2250 Gallon 3-Compartment HS-20 Water Quality Tank
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3000 Gallon 3-Compartment HS-20 Water Quality Tank
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5000 Gallon 3-Compartment HS-20 Water Quality Tank - Option 1
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5000 Gallon 3-Compartment HS-20 Water Quality Tank - Option 2
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5000 Gallon 3-Compartment HS-20 Water Quality Tank - Option 3
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Control Weirs (3)
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Custom Outlet Control Weir Wall
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Outlet Control Weir Wall - Flat
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Outlet Control Weir Wall - Flat with Base
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Drywells - Leaching Basins (27)
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4 Ft ID DW (Open Bottom)
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4 Ft ID DW with Base Slab
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4 Ft ID DW with Solid Riser
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4 Ft ID DW with Solid Sump
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6 Ft OD Drywell
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6 Ft OD Drywell 1000 Gallon
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6 Ft OD Drywell 1200 Gallon
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6 Ft OD Drywell 1300 Gallon
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6 Ft OD Drywell 500 Gallon
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6 Ft OD Drywell 600 Gallon
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6 Ft OD Drywell Base Slab Options
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6 Ft OD Drywell Top Slab Options
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6 Ft OD Drywell With Base Slab (Deep)
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6 Ft OD Drywell With Base Slab (Shallow)
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6 Ft OD Drywell With Solid Sump
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8 Ft OD Drywell 1250 Gallon
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8 Ft OD Drywell 1800 Gallon
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8 Ft OD Drywell 2100 Gallon
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8 Ft OD Drywell 2500 Gallon
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8 Ft OD Drywell 950 Gallon
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8 Ft OD Drywell Riser
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8 Ft OD Drywell With Base Slab (Deep)
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8 Ft OD Drywell With Base Slab (Shallow)
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1000 Gallon HD Rectangular Drywell
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1000 Gallon LD Rectangular Drywell
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500 Gallon HD Rectangular Drywell
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500 Gallon LD Rectangular Drywell
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Grade Rings & C-Throats (11)
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C - Throat NH DOT
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C - Throat One Inlet Round Cap
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C - Throat Right Angle
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24in Diameter HS-20 Adjustment Rings
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30in Diameter HS-20 Adjustment Rings
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36in Diameter HS-20 Adjustment Rings
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