Blue Bolt v7 #8

Blue Bolt pursues a mysterious figure impersonating Professor Belton, the astronomer, after discovering the fake at a construction site. The impostor escapes to a dam project where Blue Bolt pursues him through a harrowing sequence involving jammed hydraulic platforms and a catastrophic flood, ultimately rescuing Bill Miles who becomes trapped in the river after the platform mechanism fails and punches a hole in the dam's riverbed.