The first section extended from Maple Avenue in Ridgewood across to the corner of Lafayette and Washington avenues in Westwood. The second section starts at Kinderkamack Road and Westwood Avenue in Westwood and ran east to the state line at Old Tappan. The obvious connection was CR 502 to the corner of Washington Avenue, Broadway, and Westwood Avenue, and then CR S-114 to Kinderkamack Road. The county now officially identifies CR 110 as running concurrently with CR 502 through this stretch. However, the highway has now been truncated to Washington Avenue in River Vale.
| Mile | Street Name | Feature (West to East) |
| 0.00 |  BEGINS, Ridgewood Village |
|
| 0.00 | Linwood Ave | Maple Ave  {signal} |
| 0.11 | Linwood Ave | Unnamed stream {bridge} |
| 0.56 | Linwood Ave | Van Dien Ave {signal} |
| 0.78 | Linwood Ave | Pleasant Ave {signal} |
| 1.16 | Linwood Ave | Saddle River {bridge} |
| 1.16 | Entering (Ridgewood Village) [Paramus Boro] | |
| 1.28 | Linwood Ave | (East Saddle River Rd) [Paramus Rd  ] {signal} |
| 1.52 | Linwood Ave |  {overpass} |
| 1.57 | Linwood Ave | Van Emburgh Ave  {overpass/merge} |
| 1.86 | Entering (Washington Twp) [Paramus Boro] | |
| 2.24 | Linwood Ave | [Highland Ave  ] |
| 2.29 | Linwood Ave | Garden State Pkwy   {overpass} |
 Linwood Avenue eastbound as it approaches Pascack Road. | ||
| 2.44 | Linwood Ave | Pascack Rd  |
| 2.44 | turns left onto Pascack Rd, co-signed with |
|
| 2.44 | Entering Washington Twp | |
 In the half-mile stretch where CR 61 and CR 110 overlap. |
||
| 2.85 | Pascack Rd | Ridgewood Rd, ( {signal} |
| 2.85 | turns right onto Ridgewood Rd |
|
| 2.85 | Ridgewood Rd | Pascack Rd {signal} |
| 2.95 | Ridgewood Rd | Unnamed stream {bridge} |
| 3.77 | Entering Westwood Boro | |
| 3.83 | Lafayette Ave | Forest Ave Ext  {signal} |
| 3.83 | turns left onto Lafayette Ave, co-signed with |
|
 Lafayette Avenue, where it carries CR 13 and CR 110. | ||
| 4.23 | Lafayette Ave | Mill St {signal} |
| 4.68 | Lafayette Ave | Washington Ave  {signal} |
| 4.68 | turns right onto Washington Ave, co-signed with |
|
| 5.12 | Washington Ave | Irvington St {signal} |
 Looking east on Washington Avenue from Irvington Street toward Broadway. | ||
| 5.24 | Washington Ave | 3rd Ave  |
| 5.32 | Washington Ave | Broadway ( ) [] {signal} |
| 5.53 | Harrington Ave | Kinderkamack Rd  / Westwood Rd ( ) {signal} |
| 5.87 | Harrington Ave | Musquapsink Creek {bridge} |
| 6.03 | Harrington Ave | Pascack Brook {bridge} |
| 6.03 | Entering River Vale Twp | |
| 6.06 | Westwood Ave | (Cedar Ln ) |
| 6.82 | Westwood Ave | River Vale Rd  {signal} |
| 8.04 | Westwood Ave | Hackensack River {bridge} |
| 8.04 | Entering Old Tappan Boro | |
| 8.18 | Westwood Ave | Unnamed stream {pipe} |
| 8.45 | Westwood Ave | (Washington Ave) [Cripplebush Rd]  |
| 8.45 | ENDS, Old Tappan Boro |
|