The United States of America As Represented by the Secretary of

The United States of America, As Represented by the Secretary of the Interior

Kathleen H Frizell

Brent W Mefford

Blair Lewis Stringam

Douglas I Morris

Tracy B Vermeyen

A continuous flow measurement recorder is provided for making water flow measurements in an open channel. An ultrasonic sensor obtains pressure head measurements upstream from a flume or weir located in the open channel. A central processing unit receives the head measurements from the sensor and calculates the water flow rate and the total flow. A liquid crystal display device displays the water flow rate and the total water flow calculated by a central processing unit. A common, portable, easy to install housing is used to house and protect the sensor, central processing unit, and display device.

Continuous flow measurement recorder and recording method

A dam spillway system for embankment dam overtopping protection comprising a layer of free-draining, angular, gravel filter material, a plurality of rows of overlapping, tapered, concrete blocks assembled over the filter material in shingle-fashion, from the toe of the dam, up the slope to the top of the dam, and a plurality of fixed concrete toe blocks located at the toe of the dam, usually beneath the tailwater, and supporting each of the rows of concrete blocks.

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Arvada, CO, United States of America

Kathleen H Frizell