Boiling water reactor fuel channels bulge and bow because of pressure, temperature, fast neutron flux, and their gradients. Channel deformations can be calculated by means of the finite element technique. Calculated bulge and bow results for WNP-2 fuel channels in different core locations and at different power levels have been obtained as functions of core residence time. In general, channel bulge is largest at the core center and decreases toward the core periphery. Bulge increases with the power level and the core residence time. Channel bow is largest at the core periphery and decreases for the next two rows of channels radially inward. Bow rate is highest in the first reactor cycle and then decreases. After an initial period, bow ceases to increase with residence time and may even decrease. The analytical results are being used by the Channel Management Program at Washington Public Power Supply System to optimize the utilization of fuel channels.