Stormwater, National Life Campus

Montpelier, Vermont | National Life Group

The National Life of Vermont campus had stormwater conveyance and discharge systems that flow over steep banks and connect into the municipal system on Memorial Drive. Over time, flow through a section of the corrugated metal pipe began to leak at the joints causing erosion around and undermining of the pipe. D&K evaluated existing conditions, documented flow patterns, and developed options to replace the damaged section of pipe and repair the embankment to limit erosion. 

Markets:

Project Elements

• New underground stormwater detention field used oversized perforated HDPE pipe in a crushed stone bed.
• Trunk line was replaced with new water-tight bell and spigot HPDE line and secured with precast structures and a stone headwall.
• Riprap swale was installed to reduce flow velocities.