ENV* K245: Water Resources Engineering
Measuring Streamflow
Lake Lillinonah is beautiful, especially in foliage season

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Flowrate Measuring Exercise

We will compare two techniques for estimating streamflow, Q.  Both techniques require us to estimate the cross-sectional area, A.  Direct measurement also requires estimating the water velocity, v.  The Slope-Area Method will also require us to calculate the hydraulic radius (area divided by wetted perimeter) and to estimate the slope and describe the condition of the bottom of the stream.

We will directly measure depth, width, and velocity.  We will look at the bottom to guess what it’s made of.  We will estimate slope from a map.

Show map

Direct Measurement of Streamflow, Q

The Slope-Area Method for Determining Discharge (Manning’s)

ENV* K245 home

Anthony G Benoit  abenoit@trcc.commnet.edu
(860) 885-2386