AV-canyon supports a 100-ft high, constant-angle (120) arch dam. If the canyon is 60 feet wide at

Question:

AV-canyon supports a 100-ft high, constant-angle (120°) arch dam. If the canyon is 60 feet wide at the top and the design freeboard is 6 ft (i.e., the water level is 6 feet below the top of the dam), determine the abutment reactions at dam heights of 25, 50, and 7 5 feet above the bottom of the canyon.