Morrow Point Dam, 12 miles downstream from Blue Mesa Dam, is
Reclamation`s first thin-arch, double-curvature dam. It is 468
feet high, 52 feet thick at the base, and 12 feet thick at the
crest. The dam has a crest length of 720 feet and a volume of
360,000 cubic yards of concrete. The spillway consists of four
orifice-type openings in the top central part of the dam,
providing a free-fall discharge higher than 350 feet to the
concrete stilling basin at the toe of the dam. Each of the four
spillway openings is controlled by a 15- by 16.83-foot fixed-
wheel gate. Maximum capacity of the spillway is 41,000 cubic
feet per second. The outlet works consists of one stainless-
steel lined 4-foot-square conduit through the dam. Control is by
two 3.5-square-foot slide gates. Discharge capacity of the
outlet works is 1,500 cubic feet per second. Reservoir capacity
behind Morrow Point Dam is 117,190 acre-feet at maximum water
surface. The active capacity is 42,120 acre-feet. Surface area
for Morrow Point Reservoir is 817 a