PORTLAND, Ore. — The devastating flow released when a dam burst upstream of Johnstown, Pa., in May 1889 transformed a small, normally tranquil river into a raging torrent that briefly rivaled the mighty Mississippi, a new study reveals.
PORTLAND, Ore. — The devastating flow released when a dam burst upstream of Johnstown, Pa., in May 1889 transformed a small, normally tranquil river into a raging torrent that briefly rivaled the mighty Mississippi, a new study reveals.