Rahway River, River system through Essex, Middlesex, and Union Counties, United States.
The Rahway River is a river system flowing through Essex, Middlesex, and Union Counties in New Jersey for about 24 miles. It begins at Crystal Lake and ends at the Arthur Kill, which connects to the New York-New Jersey Harbor Estuary.
During the 1800s the river powered industrial growth as mills and factories used its water to run machinery and transport goods. This industrial past shaped how the region and its towns developed over the following generations.
The name comes from a Lenape chief called Rahwack who lived in this region long before Europeans arrived. Local communities keep this connection alive through place names and stories passed down over generations.
The waterway serves as a drinking water source for the City of Rahway and is stocked regularly for fishing activities. Public parks and access points along the river make it easy to find places to visit and explore the water.
The Rahway River Parkway was designed by the Olmsted Brothers in the 1920s and creates a connected greenway linking several towns. This linear park system is a remarkable example of early parkland planning across multiple communities.
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