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_name_77 (listed VARCHAR, county VARCHAR, name VARCHAR)
### Question:
What is the date Listed of the B & O Bridge in Washington?
### Answer:
SELECT listed FROM table_name_77 WHERE county = "washington" AND name = "b & o bridge"