GIS – Shape Files

The LRWP is building an on-line repository of shape files specific to the Lower Raritan Watershed, but we do not yet have the capacity to host these files on our website.

However, there are a variety of government and other GIS servers with open data. Anyone with the right tech savvy can access the data, and no login credentials required:

New Jersey GIS Open Data Clearinghouse


GIS (various layers):

North Jersey Transportation Planning Authority




Middlesex County also offers an ArcGIS server for regional planning (free) registration required:


And Gmap4 is an enhanced open source Google map viewer that can display any public facing
MapServer and ImageServer data. Gmap4 can also display any WMS tiles, WMTS tiles and XYZ tiles. This browser app can be used by anyone for any noncommercial purpose: