Regarding the recent commentary about the Conowingo Dam ("Maryland can enforce dam cleanup," Nov. 19), Bob Irvin is correct for the most part. However, let's keep in mind that the Conowingo is a man-made obstruction to sediment, leaves and tree logs that Mother Nature really intended to go to the Atlantic Ocean.
Furthermore, man gets a tremendous benefit of a lot of cheap electricity. To dredge the dam, it would require covering 10,000 acres of land 10 feet deep! I can't imagine the cost of this, but obviously, it would not be sensible in any cost-benefit analysis.
Rock Crum, Chestertown