Whittier Narrows Flood-Control Basin, Los Angeles County Drainage Area, California: Hydraulic Model Investigation.

摘要

The investigation of Whittier Narrows Dam was conducted to verify and supplement hydraulic computations for the initial designs. The various designs were altered to achieve maximum hydraulic efficiency and economy. Particular emphasis was given to the flow characteristics developed in the Whittier Narrows basin from inflow provided by the Rio Hondo and San Gabriel River and the outflow which is controlled by two hydraulic structures, the Rio Hondo outlet works (the main regulating structure) and the San Gabriel spillway. The tests were conducted upon six individual models, one being the general model of the Whittier Narrows basin. In general, the overall model functioned as assumed in the design of the project. However, problems were apparent at specific points which needed more detail study, namely the San Gabriel spillway, the Rio Hondo outlet works, the Rosemead Blvd. drop structure, and the San Jose diversion channel. The model studies of these structures are described individually in this report. (Author)