The NY 198 corridor was originally served by Scajaqueda Drive and Humboldt Parkway, which were two surface streets through Delaware Park. They were upgraded to a freeway known as the Scajaqueda Expressway (NY 198) in the 1960s, connecting NY 33 to I-190. Resident opposition to the expressway has always been high, and a fatal crash in 2015 resulted in a speed limit reduction from 50 to 30, the installation of guiderail, removal of the mile markers, and a restriping of the road to narrow lanes and eliminate acceleration/deceleration lanes. The crash also caused the movement to remove the freeway to become more active.
| Mile | Eastbound | Westbound | Notes |
|---|---|---|---|
| Erie County | |||
| Speed Limit 30 | |||
| 0.0 | ![]() |
Left Downtown |
Niagara Thruway |
| 0.0 | Niagara Falls |
Niagara Thruway |
|
| 0.1 | |||
| 0.8 | Grant Street Buffalo State College |
||
| 1.4 | Elmwood Avenue South Art Gallery |
||
| 1.4 | Elmwood Avenue Art Gallery History Museum |
Elmwood Avenue North History Museum |
|
| 2.0 | Delaware Avenue |
Delaware Avenue |
|
| 2.0 | Delaware Avenue |
||
| 2.7 | Parkside Avenue | Parkside Avenue Buffalo Zoo |
At-grade intersection Formerly a traffic circle |
| 2.8 | Main Street No commercial vehicles |
||
| 3.2 | Main Street No commercial vehicles |
||
| 3.4 | Airport |
||
| 3.4 | Downtown |
![]() |
|
| Speed Limit 30 | |||
| Erie County | |||

