Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2572788_1 (county VARCHAR, milepost VARCHAR)
### Question:
How many counties are at milepost 69.5? 
### Answer:
SELECT COUNT(county) FROM table_2572788_1 WHERE milepost = "69.5"