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TOLNA, N.D. (AP) Crews are plugging a leaky dam on the Tolna Coulee in Nelson County.

The concrete-and-rock Tolna Dam has been leaking for years.

State Water Commission construction chief Jon Ketsch says the seepage has gotten worse the last five years, and this spring the dam repairs became a priority. The project will cost about $60,000.

The dam was built in 1937 as a flood control project on the Tolna Coulee, creating a 147-acre reservoir on the tributary of the Sheyenne River.

The repairs are being made with Bentonite, a clay formed by the decomposition of volcanic ash that can absorb large quantities of water.

Information from: Grand Forks Herald, http://www.grandforksherald.com (Copyright 2008 by The Associated Press. All Rights Reserved.) APNP 06-18-08 1217CDT | save this article / add to your favorites list