NY 13 has a short freeway segment bypassing downtown Ithaca to the north and west along Cayuga Lake. This plan was part of a larger planned freeway corridor from Horseheads to Cortland, which would have created a shortcut around Binghamton.
| Mile | Northbound | Southbound | Notes |
|---|---|---|---|
| Tompkins County | |||
| Speed Limit 40 | |||
| 28.5 |   |
  Dey Street Willow Avenue |
At-grade intersection |
| Speed Limit 55 | Speed Limit 40 | ||
| 29.3 |  NorthStewart Park Auburn |
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| 30.4 | Cayuga Heights Road | ||
| 31.2 | North Triphammer Road Ithaca Mall |
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| 32.1 | Warren Road |
|
 At-grade intersection |
| Speed Limit 55 | |||
| Tompkins County | |||