PNPCA News & Technical Bulletins

Alternative Products

If you would like information on alternative products such as retaining walls, window and vent wells, trench drains, stormwater treatment, arches/bridges, walls and more, please click here. (Acrobat Reader PDF file - download Acrobat Reader for free) .

Box Culverts

If you would like information on box culverts, please click here. (Acrobat Reader PDF file - download Acrobat Reader for free) . Precast box sections are recommended for installations where circular concrete pipe cannot provide adequate flow capacity, and as a superior substitute for cast-in-place box culverts, long span metal arches, short bridges, and multi-barrel circular culverts or drains.

Tanks

If you would like information on tanks, please click here. (Acrobat Reader PDF file - download Acrobat Reader for free) . Precast ConcreteTanks, also known as Septic Systems are sewage treatment systems common in areas with no connection to main sewage pipes. These tanks provide an environmentally sound method of waste disposal.

Catch Basins

Precast catch basins are the most widely used storm drainage product on the market. Concrete catch basins can be constructed in a variety of shapes and sizes and can be designed to meet specific site conditions. For more information on catch basins click here. (Acrobat Reader PDF file - download Acrobat Reader for free)

Vault Information

If you would like information on vaults please click here. (Acrobat Reader PDF file - download Acrobat Reader for free) This information covers structural performance, quality, economics, risk management, durability, and design.

Manhole Information

If you would like information on manholes please click here. (Acrobat Reader PDF file - download Acrobat Reader for free) This information covers structural performance, quality, economics, risk management, durability, and design. The following table is also included: basic dimensions of manholes.

Reinforced Concrete Pipe (RCP) Technical Information

If you would like technical information on RCP please click here. (Acrobat Reader PDF file - download Acrobat Reader for free)This information covers design and installation including: evaluating hydraulic requirements; selecting standard installations, evaluating maximum and minimum heights of cover; and specifying pipe size and class. The following tables are also included: full flow discharge coefficients, standard installation trench detail, standard installations, standard installation soil categories, and full flow discharge coefficients.