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Snohomish County

Culmback Dam

Highlight • Monument

Culmback Dam

Running

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The Culmback Dam, also known as the George Culmback Dam, is a significant man-made monument nestled on the western side of the Cascade Range in Snohomish County, Washington. Standing at an elevation of 460 meters (1,509 feet), this large rockfill dam impounds the Sultan River, creating the expansive Spada Lake. This vital structure plays a dual role, providing a substantial portion of Snohomish County's fresh water supply and generating clean hydroelectric power for the region.

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Henry M. Jackson Hydroelectric Project

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    September 23, 2023

    Running

    Culmback Dam was created in 1965 via the Henry M. Jackson Hydroelectric Project. This hydroelectric dam on the Sultan River creates Spada Lake, which provides drinking water to nearby towns and serves as a recreation site.

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    Nearby routes

    Best routes near Culmback Dam

    1. Sultan River Canyon Trail

    7.26km

    00:59

    290m

    280m

    Jog the moderate 4.5-mile Sultan River Canyon Trail through a remote canyon with old-growth trees and access to the Sultan River.

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    Elevation 460 m

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    Tuesday 24 March

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    Location: Snohomish County, Washington, United States

    Frequently Asked Questions

    What are the main hiking trails around Culmback Dam and their difficulty?

    The primary hiking opportunity mentioned is the Sultan River Canyon Trail, which offers scenic routes through the forest and views of Spada Lake. While specific difficulty ratings for all trails aren't detailed, the area is generally popular for various outdoor activities, suggesting a range of options. Hikers can expect paths suitable for exploring the natural surroundings.

    What kind of terrain can hikers expect on trails near Culmback Dam?

    Hikers can expect to traverse through lush forest environments, with trails winding alongside the Sultan River and offering views of Spada Lake. The dam itself is situated on the western side of the Cascade Range, implying some varied elevation, though specific trail elevation gains are not detailed. The area is known for its natural beauty and serene landscape.

    Are there specific viewpoints to see Culmback Dam or Spada Lake?

    Yes, trails like the Sultan River Canyon Trail offer scenic routes that provide views of Spada Lake. While the dam itself is a significant engineering marvel, the surrounding natural landscape and the expansive lake are the main visual attractions for visitors. The area is designed for appreciating the serene beauty of the reservoir and its forest setting.

    What kind of wildlife can I expect to see near Culmback Dam?

    Visitors exploring the trails and natural surroundings near Culmback Dam often have the opportunity to spot local wildlife. While specific species aren't listed, the lush forest and lake environment typically support various birds, small mammals, and potentially larger forest animals. It's a peaceful atmosphere conducive to nature observation.

    Where is the best place to park when visiting Culmback Dam?

    Parking is available at the boat launches around Spada Lake, which provides straightforward access for visitors. Given that the area attracts approximately 5,000 visitors annually, especially for activities like non-motorized boating, these designated parking areas are the primary and most convenient options.

    Is public transport available to Culmback Dam?

    Information regarding public transport directly to Culmback Dam or Spada Lake is not readily available. The area is located in Snohomish County, Washington, on the western side of the Cascade Range, suggesting that personal vehicle access is likely the most practical way to reach the dam and its recreational areas.

    Are permits or fees required to visit Culmback Dam or hike its trails?

    While there are no specific Culmback Dam hiking permits mentioned, visitors should be aware that the Sultan Basin is a public water supply. An information kiosk is available where visitors can sign in and learn about regulations for activities around the dam and Spada Lake. Adhering to posted guidelines ensures a smooth visit, but no general entry fees or permits are indicated.

    What activities are suitable for families with children near Culmback Dam?

    The area around Culmback Dam and Spada Lake offers several family-friendly activities. Non-motorized boating, such as kayaking and canoeing, is a favored pastime on the lake. Easy hikes on trails like the Sultan River Canyon Trail can also be suitable for families, allowing them to enjoy the natural beauty and spot wildlife in a peaceful setting.

    Are dogs allowed on trails and in the recreational areas around Culmback Dam?

    The provided information does not explicitly state whether dogs are allowed on trails or in the recreational areas around Culmback Dam. Given that the Sultan Basin is a public water supply, it's advisable to check for specific regulations regarding pets at the information kiosk upon arrival or with the operating authority (Snohomish County PUD) beforehand.

    Are there any restaurants, cafes, or accommodation options near Culmback Dam?

    The provided information does not mention any specific restaurants, cafes, pubs, or accommodation options directly near Culmback Dam. The area is primarily a natural and recreational site. Visitors should plan to bring their own provisions or look for services in nearby towns, as the focus here is on outdoor activities and the natural environment.

    What are the rules for boating on Spada Lake?

    Spada Lake has two boat launches, and only boats without gasoline engines are permitted. This regulation is in place to maintain the lake's cleanliness and tranquility, as it serves as a crucial source of fresh water for Snohomish County. Non-motorized boating, such as kayaking and canoeing, is a favored pastime.

    What is the historical significance of Culmback Dam?

    The Culmback Dam, built in two phases starting in 1960 and completed in 1965 (with an expansion in 1984), was named in honor of George Culmback, a former mayor of Everett. It was constructed as part of the Henry M. Jackson Hydroelectric Project to create Spada Lake, which provides 70-75% of Snohomish County's fresh water and generates 112 megawatts of clean energy.

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