Harmony Grove Village is a 740 home development on a 460 acre site in rural Escondido, CA. Approximately 45,000 linear feet of 6 to 96 inch storm drain pipe and 540 minor concrete structures were installed to control the runoff of 5 native blue line streams. Almost 1800 feet of dual 8 x 10 feet, 8 x 12 feet, and 325 feet of quad 8 x 10 feet reinforced concrete box were cast-in-place to aid in the mass conveyance of runoff water flowing from the site into Escondido Creek.