It was built in the year 1846 by Britishers. Solani Aqueduct is one of the best creations of engineering in Uttarakhand state. It is made on the Solani River. The Solani river bed consists of sand of an average diameter of 0.25 millimeters and it carries maximum flood flow of 80,000 cusecs. The bed was lowered by 6 inches by replacing the old clay with concrete and bricks in 1956.