CREATE TABLE table_17794 ("Year" FLOAT, "Road Opened" TEXT, "Road Closed" TEXT, "Freight Carried s Tonne" FLOAT, "Super B Capacity Reached [ citation needed ]" TEXT, "Number of Truck Loads North" FLOAT)

What is the least amount of freight carried when the super b capacity reached was February 26?
SELECT MIN("Freight Carried s Tonne") FROM table_17794 WHERE "Super B Capacity Reached [ citation needed ]" = 'February 26'
SELECT MIN("Freight Carried s Tonne") FROM "table_17794" WHERE "Super B Capacity Reached [ citation needed ]" = 'February 26'