SET's & Headwalls
 Headwalls
Underground storm sewer piping will sometimes penetrate aboveground in the form of a drainage ditch or pond inlet or discharge. There is a potential for soil erosion to occur around the pipe due to the unbridled nature of stormwater. To help prevent this erosion, a Headwall is used to terminate the pipe. The Headwall is a precast concrete structure with wings and a bottom to deflect the water away from the soil.
Safety-End-Treatments
Many rural areas that do not have underground storm sewers, have ditches that run parallel to the roadway to convey rainwater. And wherever there are drainage ditches, there are roads or driveway that eventually cross them. Stormwater piping is placed below the roadway or driveway to create a continuous waterway. At the inlet and the exit of this piping, a Safety-End-Treatment is used. The SET provides for erosion control (similar to a headwall), but also another important task; The SET can be equipped with galvanized steel rails (called “hardware”). Since the SET’s are placed along roads, there always remains a potential for vehicles to accidentally leave the roadway and strike this embankment. The SET’s hardware enhances the safety of the embankment by deflecting vehicles away from the abrupt concrete structure. Typically the county or the state will determine the specifications for these types of structures.
Park® manufacturers several types and sizes of SET’s and Headwalls that meet county and state specifications. Contact us for equipment for your specific needs. |
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