Cleanouts are provided for low flow channel underdrains for basin designs in the State of New Jersey for maintenance purposes. The underdrain cleanout assembly has a cover located within the concrete low flow channel, but with the new Phase II storm water regulations requiring groundwater...
Is the weir an emergency spillway for the retention basin with an orifice for primary discharge? If the weir in question is an emergency spillway..the designer should check with the agency approving the basin design for the storm event that must pass over the weir. With the installation of a...