City offices will be closed on Monday, May 29th, in observance of the Memorial Day Holiday More Info

City of New Castle


Storm Water and Flood Protection


The City of New Castle’s efforts to prevent stormwater pollution are guided by NPDES Permit Number DE0051071 and State Permit Number WPCC3063A/96. The City is a Co-Permittee for the Stormwater Pollution Prevention and Management Program with the State of Delaware and New Castle County who are the principal permittees. Below are links to their websites.


Flood Protection in our city

Real-time Flood Gage Information

FEMA Information

Elevation Certificate