Model Test Results of Circular, Square, and Rectangular Forms of Drop-inlet Entrance to Closed-conduit Spillways

by Harold W. Humphreys, Krishan P. Singh, Nani G. Bhowmik, S. D. Lin, Stanley Alcide Changnon, Thomas A. Butts, Veerasamy Kothandaraman, Wun-cheng Wang, C G Lonnquist, D H Schnepper, Gunnar Sigurdsson, John William Wilson, Ralph L. Evans, D. B. Beuscher, H. James Owen, William T. Sullivan · 1970