What is the length of the highway with remarks that it was replaced by lp 20?
CREATE TABLE table_name_28 (length VARCHAR, remarks VARCHAR)
SELECT length FROM table_name_28 WHERE remarks = "replaced by lp 20"
### Context: CREATE TABLE table_name_28 (length VARCHAR, remarks VARCHAR) ### Question: What is the length of the highway with remarks that it was replaced by lp 20? ### Answer: SELECT length FROM table_name_28 WHERE remarks = "replaced by lp 20"