CREATE TABLE table_203_594 (id DECIMAL, "canal" TEXT, "length  ( miles ) " DECIMAL, "locks" DECIMAL, "max length  ( ft ) " DECIMAL, "width  ( ft ) " DECIMAL, "year opened" DECIMAL, "year abandoned" DECIMAL, "year restored" DECIMAL)

the year forth and clyde was restored
SELECT "year restored" FROM table_203_594 WHERE "canal" = 'forth and clyde canal'
SELECT "year restored" FROM "table_203_594" WHERE "canal" = 'forth and clyde canal'