The NJDOT County Map Series provides a comprehensive and detailed view of the area, designed to assist residents and visitors alike. It features an extensive network of roads, including major highways such as Interstate 95 and the Garden State Parkway, as well as local roads for easier navigation. Transportation hubs like airports and railways are clearly marked, facilitating travel within and beyond the county. The map delineates county and municipal boundaries, helping users understand jurisdictional areas. Open spaces, such as state and county parks and nature reserves, are highlighted to showcase recreational opportunities. Waterways, including the Delaware River and various lakes and reservoirs, are prominently displayed. Local place names, including towns, cities, and neighborhoods, are indicated for easy location identification. Additionally, the map includes key institutions like colleges, universities, and hospitals, along with cultural features such as historical sites, museums, and landmarks. A legend and scale are provided for clarity, and inset maps offer detailed views of specific areas. This map is an invaluable tool for navigation, planning, and discovering the rich resources and attractions within the county.

Welcome to Middlesex County Open Data. This is the platform for exploring and downloading GIS data, discovering and building apps, and engaging others to solve important issues. You can analyze and combine datasets using maps, as well as develop new web and mobile applications. [County of Middlesex]

This dataset represents the Zoning Base layer for the 25 municipalities in Middlesex County. This is the default zoning district. Where overlay zoning exists, this is the underlying zoning. The Middlesex County Zoning Base GIS dataset was developed to standardize zoning maps, which are legally adopted by municipalities, and thus exhibit varying levels of detail, accuracy, and currentness, and vary in style. For the Overlay Zoning, see the related Overlay Zoning in Middlesex County, NJ item. See metadata items for more information.This dataset is updated several times per year based on best available information available from municipalities in Middlesex County. For authoritative information, contact the municipality. Municipal governments designate and administer zoning in New Jersey. This data is for information only and final decision making should only occur after consulting with municipalities to confirm the information contained in this dataset.

The GIS dataset represents the Assigned Sewer Service Areas associated with Wastewater Treatment Facilities that discharge to surface and ground water established pursuant to N.J.A.C. 7:15-4.4. Assigned Sewer Service Areas are defined as the eligible sewer service area from which sewage flows are conveyed to a specific wastewater treatment facility (WWTF). For the purposes of the wastewater treatment plant capacity analysis which is a required component of areawide Wastewater Management Plans, the Assigned Sewer Service Area is the area reasonably expected to generate sewage that will be conveyed to the WWTF or to an industrial treatment works that accepts sewage generated from areas other than the industrial facility according to N.J.A.C. 7:15-1.5.The original GIS dataset and map was approved by the Somerset County Board of Chosen Freeholders as the first phase in the development of the countywide wastewater management plan and authorized their submission to NJDEP for consideration as an amendment to the Upper Raritan, Northeast and Lower Raritan/Middlesex County Water Quality Management Plans (WQMP) on February 28, 2012 via Resolution No. R12-015. On January 24, 2013, NJDEP adopted the dataset and map as an amendment to the Upper Raritan and Northeast WQMP, and on March 5, 2013, NJDEP adopted the dataset and map as an amendment to the Lower Raritan/Middlesex County WQMP. On November 4, 2019 the NJDEP adopted the Montgomery Township and Rocky Hill Borough Component of the Somerset County WMP that includes the dataset and map, Wastewater Treatment Plant Capacity Analysis and Strategies to Mitigate Wastewater Treatment Capacity Deficiencies pertaining to Assigned Sewer Service Areas within these two (2) municipalities. Since this time, the countywide dataset and map have been updated to reflect the terminology changes contained in the WQMP Rules (N.J.A.C.7:15). For example, "Future Wastewater Service Areas Discharging to Surface Water and Ground Water are now referred to as "Assigned Sewer Service Areas". The dataset and map adopted by NJDEP in 2013 was further updated to reflect the site-specific revisions and amendments that were adopted by the NJDEP since that time. The dataset and map also incorporates wastewater flow transfers that have taken place in Montgomery Township and that were approved at the local level in Warren Township and Watchung Borough. The dataset and map also reflect the anticipated discontinuation/closure of certain existing permitted category GW and T1 WWTFs for which sewer service areas have been assigned and that are also located within the Assigned Sewer Service Areas of WWTFs that discharge to surface water. Redevelopment and/or expansion of the existing development at these sites is anticipated in the future, at which time the on-site groundwater discharge facilities will be connected to the WWTF systems that discharge to surface water. It is important to note that this dataset and map do not include any expansions of the Assigned Sewer Service Areas adopted by NJDEP in 2013 other than the NJDEP-adopted site specific amendments and revisions that took place since 2013.Areas within Somerset County are included in the following Water Quality Management Planning (WQMP) Areas: 1) Upper Raritan Areawide WQMP Area, 2) Northeast WQMP Area and 3) the Lower Raritan/Middlesex County WQMP Area. As noted in N.J.S.A. 7:15-2.3, “Areawide Water Quality Management Plans (WQMP) identify and address selected water quality and wastewater management issues for a particular jurisdictional area, including strategies to address both point and nonpoint source pollution. The areawide WQMP is the basis by which the NJDEP and the designated planning agencies (DPAs) conduct selected water quality management planning activities for a particular area of the State. The aforementioned WQMP areas represent three (3) of the twelve (12) areawide WQMPs which together cover the entire State of New Jersey that were established pursuant to Sections 208 and 303 of the Clean Water Act. Areawide WQMP include the WMPs, TMDLs, and other water quality improvement and wastewater related plans as determined appropriate by the DPA and the NJDEP”. The dataset and map are components of the Somerset County Wastewater Management Plan (WMP). The Somerset County WMP constitutes a portion of the Upper Raritan, Northeast and Lower Raritan/Middlesex County Water Quality Management Plans (WQMP).

The Map & Collection currently holds about 60,000 paper air photos, focusing primarily on London and Southern Ontario. Holdings include print photos dating from 1922 to 2001 and are filed primarily by county. Air photo collections prior to 1969 are scanned, georeferenced and available for access through a custom web application.Collections dated post-1969 are available for viewing in the Library. Patrons should be aware of what can and cannot be copied by reviewing the Canadian Copyright Act. Copies of the Act and the agreement with the University are posted in the Map Collection. Please be aware that a 50 year copyright restriction applies. Air photos can be scanned at our scanning workstation at a resolution of your choice. Urban areas are very often found within the county coverage (ex. the town of Strathroy is included in Middlesex County). Specific urban places are also filed separately for quick reference, and on the Map and Data Centre's webpage. For questions please contact Western Libraries.