[1] Lake street begins at the end on the Elgin Bypass and intersection of Shales Pkwy and Bluff City Blvd.

It then gradually climbs a hill and has another traffic light with car dealerships on the left side when facing east.

After passing through more residential areas and some warehouses, it crosses under the Metra's Milwaukee District West Line (Canadian Pacific Railway) and meets the current western end of Illinois Route 390 (IL 390).

[1] Continuing east, Lake Street passes by shopping centers along with more residential areas while paralleling the Eisenhower expressway.

[1] In Stone Park, Lake Street runs concurrent with US 20 and passes by more shopping centers.

It then crosses over the Union Pacific Railroad and it passes by more residential areas and has an intersection with Illinois Route 171 (IL 171).

[1][2] In South Austin, it ends crosses under the Union Pacific and continues southeast with the CTA Green Line tracks in the middle.