Large Structures

Manholes

Nyloplast offers a 36” Storm Manhole and a 48" HP (High Performance) Manhole were developed to handle larger pipe diameters, provide access, and meet structural performance standards for traffic applications. These larger diameter manholes were developed with performance, ease of maintenance, and cost effectiveness in mind. They are lightweight for ease of installation and is a perfect solution for installations where water tight performance and corrosion is a concern.

48” HP MH Key Features

  • Available with a wide range of connection types and sizes
  • Made from ADS polypropylene pipe
  • Can be placed under load-bearing surfaces or in green spaces
  • Excellent abrasion and corrosion resistance
  • Light weight structure for easy installation
  • Optional accessories available, such as FlexStorm® inlet filters
  • Significant installed cost savings
  • Easy access for easy inspections and maintenance
  • Low maintenance costs
  • Enhanced jobsite durability and performance

36” Storm Manhole Key Features

  • PVC body, water tight gasketed connections, and accepts a variety of ductile iron inlets and covers.
  • Provides watertight connections for a wide range of pipe connection types and sizes up to 36” (900 mm) diameter. See minimum angle design chart
  • Manhole accepts a variety of 30” (750 mm) diameter manhole covers and inlet grates
  • Structures tested to meet H-20 traffic loading
  • Materials provide long-service life, excellent abrasion and corrosion resistance
  • Light weight structure constructed from PVC for easy installation
  • Provides significant installed cost savings
  • Design minimum pipe angles comparable to 60” (1500 mm) precast concrete manhole
  • Ladder option provides access to pipe collection system
  • Installs three times faster than traditional precast
  • Structures can be factory built with weirs and other water quality features

Nyloplast 36" PVC Drainage Structure Technical Drawings

ADS 48" HP Manhole Technical Drawings

Large Structure Grates

Curb Inlet

2x2 Diagonal
2x2 Diagonal
2x2 Standard
2x2 Standard
2x3 Diagonal
2x3 Diagonal
2x3 High Flow
2x3 High Flow
2x3 Roll
2x3 Roll

Road & Highway (H20)

12" & 15" Standard
12" & 15" Standard
12" & 15" Solid
12" & 15" Solid
18"–30" Standard
18"–30" Standard
18"–30" Solid
18"–30" Solid
30" Pedestrian
30" Pedestrian
2x2
2x2
2x2 Steel Bar
2x2 Steel Bar
2x3
2x3
2x3 Steel Bar
2x3 Steel Bar
3x3
3x3

Large Structure Applications

  • Allow for manway access following local regulations
  • Large pipe system connections
  • Detention systems
  • Inlet and Outlet storm water control

**CLICK HERE FOR DETAILS**

Have questions?

Need support?

Call us at (866) 888-8479
Send us a message

Nyloplast Drain Basin Configurator

Create a custom drain basin online

Create a basin in minutes and get specification documents and price quotes

Try It Now