Arizona Canal Diversion Channel Selection of Roughness Coefficients for Designing the Concrete-Lined Channel

摘要

The US Army Engineer Division, South Pacific, and the US Army Engineer District, Los Angeles, invited the Committee on Channel Stabilization to meet with them in an effort to determine the most appropriate roughness value to use in computing the capacity for the concrete-lined portions of the proposed Arizona Canal Diversion Channel in Phoenix, Arizona. Prior to the meeting, the Los Angeles District prepared a report titled 'Manning's Roughness Coefficients Used for Designing Concrete-Lined Channels' and furnished copies to each Committee member. The report reviewed their experience in designing concrete-lined channels, listed and described field measurements, and discussed Manning's n values computed from field measurements. The report also d irrigation projects. This report formed the basis for much of the meeting's discussions.