The Green – Old New Castle

VanDemark & Lynch, Inc. provided surveying and engineering services for the State of Delaware’s historic site, The Green in New Castle, Delaware. V&L worked closely with State Archeologists, and an Architect to alleviate a drainage problem at the Arsenal on the Green.

Poor drainage conditions near the building did not allow the roof runoff to flow away from the historic structure. It was evident that the poor drainage condition was beginning to take its toll on the historic building. A costly solution would have included a storm drain network to be installed under Market Street, a nearby cobblestone street in the heart of New Castle. By revising the previous design, V&L provided a cost saving alternative, which collects roof runoff and conveys it to an underground storage facility behind the building on the New Castle Green. The storage facility consists of 42 plastic modules arranged in an area with adequate infiltration rates. The collected runoff will infiltrate into the ground away from the historic Arsenal.