Lake Sequoyah Sediment Removal Project

Lake Sequoyah Sediment Removal Project

What is this project?

The Lake Sequoyah Sediment Removal Project is an ongoing effort to remove silt from Lake Sequoyah to improve water quality and increase the recreation potential of the lake. The sediment is removed by using dredging equipment. The dredge pumps the sediment water to a dewatering basin, into a structure called a geopool that removes the water. The sediment is very rich in nutrients and can be sold after it is dewatered for use in gardening or agriculture.

Why is it important?

The sediment carried by the white river has settled in the bottom of the Lake Sequoyah since the late 1950’s when the dam was built. In some areas, the lake is only 3-4 feet deep as a result of the accumulating sediment, which inhibits its recreational use. The sediment is carried onward to Beaver Lake, the main drinking water source for Northwest Arkansas. If the sediment is removed from Lake Sequoyah, it will improve the water quality in the area.

What is the current status?

The bridges were completed in 2017. An access road is currently being built so that the trucks and equipment will have access to the sediment dewatering site (Basin 3). The road will also provide safe access to E. Huntsville Rd. (Highway 16). When the access road is complete (Summer 2018), berms will be constructed around the dewatering basin. The berms should be complete by early 2019 and the dredge and dewatering equipment will be purchased so dredging operations can begin. The dredge that will be purchased will be portable, so that it could potentially be used at other lakes, such as Lake Fayetteville.

When is completion expected?

Lake Sequoyah sediment removal is an ongoing project. After the access road and berms are constructed and dredge and dewatering equipment is purchased, the sediment removal project will continue indefinitely to keep the water quality high and maintain recreational use of the lake.

How was this project funded?

Funds are budgeted each year within the Lake Sequoyah Sediment Removal/Dredging Project in the Utilities Department.