Telegraph Canyon Creek Channel Improvement Project, San Diego County, California; Hydraulic Model Investigation

摘要

Tests were conducted on a 1:20-scale model of Telegraph Canyon to determine the amount of head that would be required to increase the capacity of the culverts from 1,700 cfs to 3,300 cfs, and to develop an energy dissipator design downstream from the existing culverts. Initially, the model reproduced approximately 3,400 ft of the channel and culverts from sta 69+39 to 35+31. Later in the testing program, the model was modified to reproduce upstream channel improvements to sta 78+00 to reflect the change in location of the inlets to the box culverts from sta 59+70 to 67+40. (FR)