| Mile | Street Name | Feature (West to East) |
| 0.00 | CR 112 BEGINS, (Ho-Ho-Kus Boro) [Ridgewood Village] | |
| 0.00 | Race Track Rd | Franklin Tpk, CR 62 |
| 0.46 | Race Track Rd | NJ 17 |
| 0.46 | CR 112 ENDS, (Ho-Ho-Kus Boro) [Ridgewood Village] | |
| Gap in road due to NJ 17 | ||
| 0.00 | CR 82 BEGINS, (Ho-Ho-Kus Boro) [Ridgewood Village] | |
| 0.00 | Race Track Rd | NJ 17 |
| 0.23 | CR 112 turns left onto West Saddle River Rd | |
| 0.23 | Entering Ho-Ho-Kus Boro | |
| 0.28 | CR 112 turns right onto Bogert Rd | |
| 0.39 | Bogert Rd | Saddle River {bridge} |
| 0.42 | Bogert Rd | East Saddle River Rd, CR 502 / CR 75 |
| 0.42 | CR 112 turns right onto East Saddle River Rd | |
| 0.42 | Next 0.80 mile co-signed with CR 502 | |
| 0.42 | Next 0.17 mile co-signed with CR 75 | |
| 0.50 | East Saddle River Rd | Branch Saddle River {bridge} |
| 0.59 | CR 502/112 bears left onto Wierimus Rd | |
| 0.59 | Wierimus Rd | East Saddle River Rd, CR 75 |
| 1.22 | Entering (Ho-Ho-Kus Boro) [Washington Twp] | |
| 1.22 | Wierimus Rd | [Washington Ave, CR 502] |
| 1.69 | Entering Hillsdale Boro | |
| 1.97 | Wierimus Rd | [Van Emburgh Ave, CR 71] |
| 1.97 | Next 0.16 mile co-signed with CR 71 | |
| 2.13 | CR 112 turns right onto Hillsdale Ave | |
| 2.13 | Hillsdale Ave | Wierimus Rd, CR 71 {signal} |
| 2.17 | Hillsdale Ave | Garden State Pkwy, NJ 444 {overpass} |
| 2.46 | Hillsdale Ave | Unnamed stream {bridge} |
| 2.89 | Hillsdale Ave | Pascack Rd, CR 63 {signal} |
| 3.02 | Hillsdale Ave | Unnamed stream {pipe} |
| 3.54 | Hillsdale Ave | Unnamed stream {pipe} |
| 3.52 | Hillsdale Ave | Branch Hackensack River {bridge} |
| 3.66 | Hillsdale Ave | Patterson St {signal} |
| 3.75 | Hillsdale Ave | Erie Railroad {at-grade crossing} |
| 3.78 | Hillsdale Ave | Broadway, CR 104 {signal} |
| 3.87 | Hillsdale Ave | Firehouse entrance {signal} |
| 4.09 | Hillsdale Ave | Kinderkamack Rd, CR 503 {signal} |
| 4.09 | CR 112 ENDS, Hillsdale Boro | |