CR 73 starts in Ho-Ho-Kus and climbs a hill into Saddle River, where it assumes the Chestnut Ridge Road name. At a sharp right turn along the Saddle River-Woodcliff Lake border, it becomes County Road and cuts over to the other Chestnut Ridge Road, which actually continues on into the Village of Chestnut Ridge, in Rockland County.
| Mile | Street Name | Feature (South to North) |
| 0.00 |  BEGINS, Ho-Ho-Kus Boro |
|
| 0.00 | Jacquelin Ave | East Saddle River Rd  |
| 0.31 | Entering Saddle River Boro | |
| 0.32 | Chestnut Ridge Rd | Mill Creek {pipe} |
| 0.81 | Chestnut Ridge Rd | Unnamed stream {culvert} |
| 1.26 | Chestnut Ridge Rd | Unnamed stream {bridge} |
| 1.91 | Chestnut Ridge Rd | Woodcliff Lake Rd,  |
| 2.45 | Chestnut Ridge Rd | (East Allendale Rd,  ) |
| 2.78 | turns right onto County Rd |
|
| 2.78 | Entering (Woodcliff Lake Boro) [Saddle River Boro] | |
 Southbound (westward) on County Road just east of Chestnut Ridge Road in Saddle River. | ||
| 3.09 | County Rd | Chestnut Ridge Rd, [ ] {signal} |
| 3.09 | turns left onto Chestnut Ridge Rd |
|
| 3.09 | Entering Woodcliff Lake Boro | |
| 3.33 | Chestnut Ridge Rd | Tice Blvd {signal} |
| 3.62 | Entering Montvale Boro | |
| 3.64 | Chestnut Ridge Rd | Woodmont Dr {signal} |
| 3.85 | Chestnut Ridge Rd | Unnamed stream {bridge} |
| 4.30 | Chestnut Ridge Rd | Grand Ave, [ ] {signal} |
| 4.47 | Chestnut Ridge Rd | Summit Ave,  {signal} |
| 5.15 | Chestnut Ridge Rd | Upper Saddle River Rd {signal} |
| 5.28 | Chestnut Ridge Rd | Unnamed stream {pipe} |
| 5.36 | ENDS, Montvale Boro |
|
| 0.00 |  BEGINS, Ramapo Town, Rockland Co. |
|