Niska Isle was prior to 1915 a by highly defensible
hillock at the junction of the Lisha
Kill (creek) and Mohawk River and was once the site of a
Native American village. A trail led from the village to the
Normans Kill and
Helderberg Escarpment. A rope ferry was started in 1790, by Eldert Vischer, connecting Ferry Road on the Niskayuna side to the Ferry Road on the opposite bank. The ferry was replaced by a short-lived bridge from 1900–2. The damming of the Mohawk River for the creation of the
New York State Barge Canal in 1915 caused the mouth of the Lisha Kill to become a back bay and this required the building of a bridge to connect Ferry Road to the "mainland". The bridge, despite getting a new deck in the 1980s, was showing its age by 2008, when it was proposed that Niska Isle be abandoned. This was rejected due to a projected price tag of over $6 million to buy out the landowners. A new bridge, costing almost as much, was built in 2010. ==Demographics==