Elwa River

Tom Banse / Northwest News Network

PORT ANGELES, Wash. – Seattle's Kingdome collapsed with a bang. Explosive demolition experts also brought down the cooling tower at the former Trojan nuclear plant. But if you're hoping for the same excitement from the upcoming destruction of two big hydropower dams on Washington's Elwha River, you'll be disappointed.

The history-making dam removal that begins in September will happen slowly and methodically.

Tom Banse / Northwest News Network

Nearly 100 years of hydropower production comes to a close today (Wednesday) on the Elwha River on Washington's Olympic Peninsula. The turbines at the two dams on the river are going off line for good in preparation for the biggest dam removal in North American history.