| 8th and Blair Line (1912) - Assumed Removed |
| 8th and Blair Line (1912) - Potentially Present |
| 8th and Blair Line (1912) - Removed |
| College Crest Line (1910) - Assumed Removed |
| College Crest Line (1910) - Potentially Present |
| College Crest Line (1910) - Present |
| College Crest Line (1910) - Removed |
| Eugene and College Hill Line (1891) - Assumed Removed |
| Eugene and College Hill Line (1891) - Potentially Present |
| Eugene and College Hill Line (1891) - Present |
| Eugene and College Hill Line (1891) - Removed |
| Oregon Electric Railway (1912) - Potentially Present |
| Oregon Electric Railway (1912) - Present |
| Shared Line (1891-1900, 1907-1927) - Assumed Removed |
| Shared Line (1891-1900, 1907-1927) - Potentially Present |
| Springfield Line (1910) - Assumed Removed |
| Springfield Line (1910) - Potentially Present |
| Springfield Line (1910) - Present |
| Springfield Line (1910) - Removed |
| University Line/Fairmount Loop (1907/1909) - Assumed Removed |
| University Line/Fairmount Loop (1907/1909) - Potentially Present |
| University Line/Fairmount Loop (1907/1909) - Present |
| University Line/Fairmount Loop (1907/1909) - Removed |
| West 11th Avenue Extension (1913) - Potentially Present |
| West 11th Avenue Extension (1913) - Removed |