A waste product separator includes a plurality of plate gussets which support a top cover plate. Each gusset has opposite ends with an interconnecting declining edge extending from the top plate to the roadway. The respective edges further support a first ramp and a second ramp. Each ramp includes elongated slots so that onrushing waste water flows through the first ramp followed by discharge through the slots of the second ramp. Collection sections are under the top cover plate and in the path of the oncoming rush of waste water and each section includes an oil absorption unit and a toxic waste or product unit so that the waste water must filter through these units to reach a discharge ramp. The units serve as a catch basin for retaining trash.