The Chaki Wardak Dam (Pashto: چک وردګ برېښناکوټ‎), or simply the Chak Dam (Pashto: چک برېښناکوټ‎), is a dam near the Chak district center in Chaki Wardak District, Wardak Province, Afghanistan. It was originally built by Germans in 1938, making it the oldest major dam in the country.[1] It regulates flow of the Logar River, helping provide irrigation water in Chak Valley.