Installation of an RCCP Storm Drain Pipe

Assess the site conditions and select the suitable pipe class and pipe size, according to the hydraulic requirements for the project. Verify field measurements for pipe length.

Excavate the trench to 1.33 times the width of the outside diameter of the pipe, and to a depth that allows the recommended backfill cover for the pipe. Prepare the base of the trench to the required grade to minimize the adjustments to the RCCP during installation. Spread the bedding material evenly to the required depth, and compact to the density required for the pipe type.

Inspect the pipe for flaws before lowering it into the trench. Clean the pipe and joints, and keep both clean during installation.

Lower the pipe in sections, starting at the low point of the trench, and pointing the groove or bell end upstream. Lay it to the design line and grade, checking as each section is installed. Make sure the pipe bears uniformly on the bedding material.

Remove soil or foreign material before jointing pipe. Assemble joints according to the manufacturer's instructions. Use cold applied bituminous or rubber rope gasket jointing materials unless directed otherwise for the conditions.

Apply the joint material to the entire tongue, or the top half of the tongue and the bottom half of the groove, filling the joint. Close the joint between the pipes, and fill remaining voids inside and outside the pipe with the joint material. Place the pipe so that joint openings on the outside or inside of the pipe aren't more than 1/8 inch at the bottom, and 5/8 inch on top.

Backfill evenly in layers on both sides of the pipe, in 6-inch layers, to 1 foot above the pipe, without displacing or damaging the pipe. Compact each layer with the compactor, for the full length of the layer.

Add soil to the required depth of cover for the pipe for the width of the trench. Maintain the cover during construction activities that follow.