CREATE TABLE table_name_69 (final_year NUMBER, north_or_east_terminus VARCHAR2)

What is the most minimal Final year that has a North or east end of covington?
SELECT MIN(final_year) FROM table_name_69 WHERE north_or_east_terminus = "covington"
SELECT MIN("final_year") FROM "table_name_69" WHERE "covington" = "north_or_east_terminus"