Performance Testing of Submerged Intake Screen

Abstract

A test of the long-term operating performance of a wedgewire-screen intake system in the Mississippi River is described. The screen was a 13.5-ft (4.1-m) long, 3-ft (0.91-m) diameter cylinder with 1 mm slot openings, providing 40% open area. It was placed 3-ft (0.91-m) above the river bed 9-ft below normal pool elevation at a distance of 150-ft (46-m) from the bank of the river. Water was drawn in through the screen by an inclined one-stage axial-flow pump on the bank of the river. The pump was rated at 10 cfs (0.28 m