Journal of Hydraulic Engineering.. Vol. 116 No. 12 (1990). 

 - New York : American Society of Civil Engineers.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Technical Note and Discussions on December 1990 in Vol. 116 No. 12. 
<br/><br/>EDITORIAL. TECHNICAL PAPERS : Computation (Investigation, Education, and Application) / James A. Liggett. Predicting Incipient Fluidization of Fine Sands in Unbounded Domains / Gerard P. Lennon, Tom Chang, and Richard N. Weisman. Spreading of Oil Spilled under Ice / Poojitha D. Yapa and Tamara Chowdhury. Effect of Buoyancy on Transverse Mixing in Streams / Michael S. Bruno, Michael Muntisov, and Hugo B. Fischer. Boundary Shear Stress and Roughness over Mobile Alluvial Beds / Peter J. Whiting and William E. Dietrich. Effects of Momentum Transfer in Compound Channels / D. Stephenson and P. Kolovopoulos. Surging in Urban Storm Drainage Systems / Qizhong Guo and Charles C. S. Song. TECHNICAL NOTE : Optimal Spectral Base-Flow Estimation / Jaime Collado, Alvaro A. Aldama, and Jose L. Acosta-Rodriguez. DISCUSSIONS : Bar Form Resistance in Gravel-Bed Rivers. Richard D. Hey / Andre Robert. Closure by author. Hydrologic Approach to Prediction of Sediment Yield. Kazumasa Mizumura / Henry R. Hudson. Closure by author. END OF YEAR INDEX.