Extracted text: Title 1. A V-canyon supports a 100-ft high, constant-angle (120°) arch dam. If the canyon is 60 ft wide at Description 1. A V-canyon supports a 100-ft high, constant-angle (120°) arch dam. If the canyon is 60 ft wide at the top and the design freeboard is 6 ft (i.e., the water level is 6 ft below the top of the dam), determine the abutment reactions at dam heights of 25, 50, and 75 ft above the bottom of the canyon. 2. A 15-m-high overflow spillway crest is 10 m wide has a discharge coefficient of 2.04 at flood stage. Flood stage occurs at a static head of 1.3 m. Determine the flood stage flow rate ignoring and including the approach velocity.