4. High Bridge Gatehouses
The gatehouses on High Bridge, which feature beautiful brick barrel vault construction on the interior, are additional inaccessible assets along this thoroughfare. As the website Croton Waterworks describes, the water once entered through the eastern gatehouse on the Bronx side and was dispersed through the western gatehouse on the Manhattan side. The western gatehouse has undergone a structural study in the past to address the significant distortion of the vaulting inside. The gatehouses are actually under the jurisdiction of the NYC Department of Environmental Protection at present.