Several blocks to the east of Grant, NY 290 reaches a junction with NY 598 (Midler Avenue). Continuing through Eastwood, the route expands to four lanes near the local water tower and crosses into the town of De Witt, where it junctions with NY 635 (Thompson Road) above railroad tracks.
In the vicinity of Grant, NY, the road bifurcates at NY 290, merging with NY 598 (Midler Avenue). As one proceeds through Eastwood, the thoroughfare expands to four lanes near a water tower and enters the town of De Witt, where it converges with NY 635 (Thompson Road) above railroad tracks.