Investigations of Methods and Equipment Used in Stream Gaging, Vol. 2: Intakes for Gage Wells (Classic Reprint) - Hardcover

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Excerpt from Investigations of Methods and Equipment Used in Stream Gaging, Vol. 2: Intakes for Gage Wells

Various devices attached to the ends of intake pipes to gage wells have been used by engineers of the Geological Survey in attempts to eliminate the draw down, or difference in the heights of water in the well and in the river at stations for the measurement of stream flow. About 90 different devices and arrange ments of intakes were tested at the National Hydraulic Laboratory in order-to obtain definite information regarding the performance of the various devices and their effectiveness in eliminating draw-down.

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