Blaisdell, Fred W.2011-06-252011-06-251958-03https://hdl.handle.net/11299/108031The theory of the hydraulics of closed conduit spillways has been presented previously as Part I of this report series. Parts II to VI describe the laboratory tests, record the observed flow phenomena, and give the discharge and pressure coefficients necessary for the application of the theory. This information is given for five different forms of the closed conduit spillway, four of which are recommended. The drop inlet described in Part II is not recommended because of its poor hydraulic performance.en-USWorking Paper