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_8 (width_feet__m_ VARCHAR, source__year_ VARCHAR)
### Question:
What is the width for hte truss with a source of zacher (1994)?
### Answer:
SELECT width_feet__m_ FROM table_name_8 WHERE source__year_ = "zacher (1994)"