Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_32093 ( "Name" text, "Canton" text, "Height (meters)" real, "Crest length (meters)" real, "Type" text, "Year of construction" real, "Name of the Lake" text )

### Question ###
Tell me the total number of crest length for year construction larger than 1957 for mattmark

### Accurate SQL ###

SELECT COUNT("Crest length (meters)") FROM table_32093 WHERE "Year of construction" > '1957' AND "Name" = 'mattmark'