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Jetty Island is a man-made island and park in the U.S. state of Washington, located 30 miles north of Seattle in the Puget Sound, just off the Everett, Washington waterfront. The island is two miles long and half a mile wide, approximately 1,800 acres. The island has no plumbing, electricity or structures. During the summer months, a ferry becomes operational, allowing access to and from the island. A floating restroom also becomes operational off the island’s shore.
In 1895, the Everett Land Company constructed a riprap jetty to provide a navigation channel and a fresh water harbor to support their mills, it was later named Jetty Island, as it resembles a natural island, rather then a jetty or dyke. The island is composed of sediment from the Snohomish River; Material that was created by the maintenance dredging of the Snohomish River was used to create the island, the original dredged material was placed over a 100 years ago. Today, river sediment is occasionally added using the same process. The Port of Everett purchased the island from the Everett Improvement Company after Port District voters authorized the purchase on December 1, 1928.
Although the island is only a few hundred feet from the Everett waterfront, it is only accessible by watercraft. During the summer months, the Port of Everett partners with the City of Everett Parks Department to provide a small, sixty passenger ferry that allows access to the island and is free for area residents. The ferry operates seven days a week and departs from the Port of Everett's boat launch. The length of the ferry trip is only a few minutes each way.
Jetty Island’s unique features provide excellent habitat for birds and juvenile salmon. The island is home to more than 45 bird species including osprey, shorebirds, hawks, eagles, cormorants and ducks. Visitors may see seals surfacing or lounging near the water's edge, or even witness gray whales swimming past during spring migration.