The accurate and representative accumulation of stream flow data is vital to illustrating a region's water resources. Hydrometric gauging stations are places containing instruments and equipment used to calculate the flow of water in rivers, lakes, canals and streams. The purpose of this assignment is to develop my understanding of stream power and specific stream power through my individual critical evaluation of the results of the classroom stream power exercise. Stream power is a criterion that measures the amount of energy spread against the river or stream bank. Specific flow power is the criterion that measures the flow power per unit area of ​​the river or stream channel. Stream power and specific stream power calculations have been applied to the rivers of Ireland. The use of flow power varies in different analyzes and is based on the type of exhaust used in the flow power calculation. This may be a discharge that reaches its peak during a flood event or it may be the highest discharge with periodic frequencies of recurrence. To effectively describe the river bed, the most powerful flow rate; The bank's total debt relief should be taken into account. Methods To calculate the discharge, the average annual settlement is used rather than the bank's full discharge as it is easier to obtain the average annual settlement from data sources. Then a particular hydrometric measuring station is selected from the OPW hydrometric data site http://www.opw.ie/idro/ which provides the station name, station number, stream, reference to national network, the river basin, the river basin and the average annual flow. To determine the slope of the water surface between the upstream and downstream parts, the difference in height between them and the distance along the channel or... in the center of the map... with braided river channels. It is renowned that this flow represents the primary dynamic force active in the modeling of a riverbed. On this basis we can come to the conclusion that the vertical alterations of the riverbed elevation are strongly influenced by the different types of flow that cross the section of the river. A high discharge caused by a flood event influences a powerful level of erosion, the expansion of the depth of the riverbed elevation and a small discharge should help the concentration of sediments in the riverbed elevation, thus the increase of the height of the land as a result of sediment deposition. The larger the river, the lower the values ​​of the specific power of the watercourse, probably due to a greater obstruction of the riverbed which consumes a large amount of energy to the detriment of that accessible to transfer and move the bed load.