How many miles of shoreline make up the chesapeake bay?

the total for the bay shoreline is 11,684 miles . (18,804km) the bay is 200 miles long . the bay is 21 ft deep. the bay is 2.8miles wide . the drainage basin covers64,299 sq. miles. in the Chesapeake bay about 2,700 different types of plants live in the watershed. and about 17million people . in the year 2020 we should have about 22 million people.