The Sourthern Tier Expressway (I-86/NY 17) has a short spur in Bemus Point connecting from exit 10 to NY 430. It appears to be a remnanent of a longer spur that might have been planned to serve Mayville and Westfield. Some speculate that it may have been planned to be part of a former routing of the Southern Tier Expressway, and the reference route (954J) carries reference markers marked 17.

Mile Eastbound Westbound Notes
Chautauqua County
Speed Limit 55
0.0 To I-86 To NY 17
Jamestown
Erie, PA		 NY 430 West
Long Point State Park
Midway State Park
0.0 NY 430 East
Bemus Point
Ellery Center		 CR 48
1.2 I-86 West
Erie, PA
1.2 I-86 East
Jamestown		 To NY 430 NY 17
Speed Limit 55
Chautauqua County