INTAKES

Intake structures must provide: A. a velocity of flow 0.25 to 0.50 feet per second through the inlet structure so frazil ice is held to a minimum; B. for the withdrawal of water from the depth of the best water quality; C. inspection manholes every 1,000 feet for pipe sizes large enough to permit visual inspection; D. protection against rupture by dragging anchors, ice, and other activity; and E. permanent monuments to reference locations.