CIV E 444 - APPLIED HYDRAULICS
SPRING 2016
LAB No. 11


  1. Design a circular concrete culvert with the following data:   Q = 320 cfs; inlet invert elevation = 200 ft; bottom slope = 0.01; culvert length = 150 ft; tailwater depth above outlet invert = 4.5 ft; roadway shoulder elevation = 220 ft; Manning's n = 0.015; entrance type is square edge with headwalls, and upstream freeboard = 2 ft. At what discharge would the culvert diameter be required to be 0.5 ft larger?? Use ONLINE CULVERT.

  2. Determine the rating for an ogee-type spillway with length L = 12 m, design head H = 1.0 m, crest elevation at 170 m, and river bed elevation at 155 m. Neglect the approach velocity. Compare with ONLINE OGEE RATING.

  3. A hydraulic jump is formed in a rectangular channel. The upstream depth and velocity are y1 = 0.2 ft and v1 = 10 fps, respectively. What is the energy loss? Verify with ONLINE CHANNEL 12.

  4. A 24-in diameter pipe converges into an 8-in pipe as shown in the figure. A gate slot is located in the smaller pipe. Use the free-vortex incipient cavitation index σi to estimate the flow rate that will cause incipient cavitation near at or near point A in the gate slot.