Results of the Cazenovia Creek ICS model study showed that a 1.8-m(6-ft)-high weirequipped with nine piers and bordered by a bypass floodway is likely to retain ice well beyond the maximum recorded discharge for ice-jam floods since 1971. We feel confident that such a structure will prevent future ice-jam flooding of West Seneca and Buffalo, New York. This design was accepted by the U.S. Army Corps of Engineers, Buffalo District, and the structure is currently scheduled for completion by 1990. Once the structure is built, field data will need to be obtained in the following areas: Freeze-up and breakup conditions over several winters; Ice loads on the structure; Water levels immediately upstream of the ICS. These data are necessary for comparison with the results of the model study, and for future improvements in the design and techniques of hydraulic models involving ice processes. (edc).