Abstract: A dual containment channel for fluids comprising a plurality of channel segments defining a channel run. Each of the channel segments comprises two spaced apart opposing channel segment side walls connected by a bottom wall for carrying a fluid. A cover is positioned between and supported by the side walls to enclose the open top of the channel run. A conduit support is positioned along the channel run along its length for supporting at least one fluid carrying conduit. An elastomeric sealing strip is positioned in two U-shaped grooves to form with grooves in the opposing channel segment side walls a continuous seal with the underside of the cover.

Abstract: A drainage channel system is disclosed which is characterized by a plurality of drainage channel segments (30) of progressively greater length adapted to be interlocked end-to-end. Each channel segment (30) comprises a pair of opposing, spaced-apart sidewalls (31), (32), a bottom wall (33) connecting the sidewalls (31), (32) adjacent one end and a top opening opposite bottom wall (33) defining a fluid entrance adapted to receive a grate (37). A sidewall extension (10) is provided for being mounted on top of each of the sidewalls of channel segment (30) along at least a part of the length thereof to effectively increase the total depth of each channel segment (30) and increase the length of a continuously and progressively sloping run of the drainage channel system.

Abstract: An anchor 20 is disclosed for supporting an open top drainage channel 40 within a trench. Anchor 20 permits accurate placement and easy adjustment of channel 40 and thereafter permits the entire channel 40 to be embedded in concrete in a single pour. The anchor 20 is embedded within the earth defining the trench and counteracts the natural buoyancy so that channel 40 does not float upwardly in the unhardened concrete.