NY 840 is a short extension of the NY 8 expressway from New Hartford to Whitesboro. It begins at the point where NY 8 leaves the expressway to join NY 5/NY 12 along the North-South Arterial Highway and runs west as an expressway to Halsey Road in Whitesboro, where it becomes Judd Road (CR 840). CR 840 continues west for a few miles to end at NY 233 in Rome.
Copyright © 2003-2020 by David Golub. All rights reserved. The author would like to thank William Roll for contributing photographs and LC for contributing documents to this web site. You may not reproduce any text or photographs on this web site without express permission from the author. Hotlinking of images from this site is strictly prohibited. Route symbols based on graphics from Central PA/MD Roads and Wikipedia.