River Basin Surveys Papers, No. 31: Archeological Manifestations in the Toole County Section of the Tiber Reservoir Basin, Montana

The Tiber Dam, sometimes known as the Lower Marias Unit, had its inception some 50 years ago when William T. Cowan, State Senator from Hill County, Mont., stumped for the construction of a dam across the Marias River, the waters of the subsequent reservoir to be used for irrigation purposes. His was a far-sighted vision, one which was not fully appreciated until many years after his death. On September 30, 1952, President Harry S. Truman, before a crowd of 10,000 people, set off a blast marking the ground-breaking for the project. The dam, located 68 miles upstream from the confluence of the Marias and the Missouri Rivers, is a rolled earth-filled structure 4,300 feet long, with a maximum height of 205 feet and a maximum width at the base of 1,282 feet. The lake to be formed will have a surface area of 22,180 acres with a maximum length of 25 miles and a maximum width of 4 miles.泰伯大坝（Tiber Dam）有时也被称为下马里亚斯水利单元（Lower Marias Unit），其始建历程可追溯至约50年前：时任蒙大拿州希尔县州参议员威廉·T·考恩（William T. Cowan）奔走呼吁，提议在马里亚斯河上修建一座大坝，所形成水库的蓄水将用于灌溉用途。他的这一远见卓识，在其逝世多年后才得到充分认可。1952年9月30日，哈里·S·杜鲁门总统在万名民众的见证下，引爆爆破仪式，标志该工程正式破土动工。该大坝坐落于马里亚斯河与密苏里河汇流处上游68英里处，为碾压式填土坝结构，坝体长4300英尺，最大坝高205英尺，坝基最大宽度达1282英尺。其形成的水库水面面积将达22180英亩，最大长度25英里，最大宽度4英里。