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How does water flow affect fishing?ĭecreased stream flow can contribute to direct mortality if fish eggs are exposed, covered with silt, or left without sufficient, oxygenated water. Speed probably varies from about 3 ½ to 7 miles per hour.” 1.6 to 3.1 m/s. “Speed also varies along the stream channel, being fastest where the channel is narrowest and the gradient steepest, and it changes with time, being fastest at flood stage. If, for instance, 2,000 cubic feet flow through a duct with a cross-sectional area of 4 square feet each minute: 2,000 / 4 = 500 feet per minute. What is CFS in river flow?ĬFS stands for Cubic Feet per Second, and it’s a measure of the volume of water passing any given point in a river in one second. What is considered fast CFS?ĬFS is “cubic feet per second,” a unit of measurement referring to the volume and speed of water flow.A river, in the Southwest especially, is considered to have high water levels when the CFS is 3,000 and above. How many Cubic meter per second make 1 Cubic foot per second? 1 Cubic foot per second = 0.028 316 846 592 Cubic meter per second – Measurement calculator that can be used to convert Cubic foot per second to Cubic meter per second, among others. What is CFS to GPM?Ī flow of one cfs is approximately equal to either 450 gpm, one acre-inch per hour, or two acre-feet per day (24 hours).
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Multiply the number of gallons per second by 60 to convert to gallons per minute. For example, if you start with 42 cubic feet per second, multiply 42 by 7.4805 to get 314.181 gallons per second. Multiply the number of cubic feet per second by 7.4805 to convert to gallons per second.
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Sometimes called “second-feet.” How do I convert CFS to GPM? It translates into 28.32 litres of water per second. What is cusec water?ġ cusec is one cubic foot of water flow per second. The flow rate (cfs) is calculated by multiplying the velocity (ft/sec) by the area (ft2). Below3,000 cfs is generally calm, and anything below 300 to 500 cfs will be too low for paddling. From 3,000 to 6,000 cfs you should have very strong paddling skills. If the flow indicated is above 6,000 cubic feet per second (cfs), only very experienced paddlers should enter the water. One recommendation that I have given over time is that 1200 CFS is often safe for people to be getting in and out of boats easily, getting in and out of the river on the banks, and wade fishing. 1000-1500 cfs – At this level floating comes into its own. At this level look for fish out of the main current. There is plenty of water to float and you can wade the river nearly everywhere. What is a good CFS for fly fishing?ħ00-1000 cfs – This level is the best of both worlds. How many CFS are in a GPM?Ĭonversion formulas Cubic feet per second, US gallon per minute (cfs, ft3/s, gpm): cfs= 448.8325660485*gpm. How do you measure CFS?Ĭalculate the discharge in cubic feet per second (cfs) by multiplying velocity (ft/sec) by the cross-sectional area (ft2) of the stream. It is also approximately 7.48 gallons per second. One cubic foot per second (cfs) is equal to the discharge through a rectangular cross section, 1 foot wide by 1 foot deep, flowing at an average velocity of 1 foot per second.
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* 1 cfs will produce 724 acre-feet of water per year. * 1 cfs is equivalent to 448.8 gallons of water flowing per minute. What does CFS stand for in education?Ĭhild-friendly school (CFS) definition.