Mahwah Department Public Works 142 N Railroad Ave, Mahwah, NJ07430 The Mahwah Department of Public Works is one of the few government organizations in the township that is not located in…More the municipal complex at 475 Corporate Drive. Instead, this building is located on North Railroad Avenue. This department houses the divisions of Streets and Roads, Buildings and Grounds, Recreation, Recycling, and Water and Sewer Utilities. This building is responsible for the maintenance and upkeep of all county properties, and collecting recyclable items on a weekly basis. Citizens with questions about any of these services should call, or visit the town website.