Desert Hot Springs Master Drainage Plan Line B, Stage 1; Line F; Stage 1, and Camino Campanero Basin

Desert Hot Springs Master Drainage Plan Line B, Stage 1; Line F; Stage 1, and Camino Campanero Basin

The proposed project consists of construction, operation and maintenance of certain flood control and drainage facilities described herein including "Line B, Stage 1", "Line F, Stage 1", "Camino Campanero Basin" an an interim collector structure. Line B, Stage 1 is identified in the current Desert Hot Springs Master Drainage Plan (MDP) although its proposed alignment has been shifted to the west. Line F, Stage 1 and Camino Capanero Basin are not identified in the current MDP but will be included in the next MDP update. Line B, Stage 1 is proposed as an underground storm drain consisting of a 12 ft wide x 10 ft high reinforced concrete box (RCB) along Verbena Drive. Line B, Stage 1 and the interim collector structure will drain into the proposed Camino Capanero Basin, a 17 acre detention basin located at the northeast corner of the intersection of Verbena Drive and Camino Campanero. Camino Campanero Basin will utilize geotextiles to provide erosion protection on the sideslopes and outlets into the proposed Line F, Stage 1, which will consist of a 1,500 lineal foot daylight channel and ~1,000 lineal feet of rock-lined levee having a maximum height of 5 ft above existing ground. Line F, Stage 1 is to be located between Camino Campanero and Camino Aventura. The northernmost 400 ft of Line F, Stage 1 is proposed to consist of a rock lined open channel transition structure with 3:1 sideslopes and a bottom width varying from 50 ft to 150 ft. The remainder of Line F, Stage 1 is proposed to consist of an earthen channel bottom with 3:1 rock-lined and/or geotextile-lined sideslopes and a bottom width of 150 ft. Because design and construction of the proposed Desert Hot Springs MDP "Line A" is not expected to be initiated for several yaers, an interim collector structure is proposed to collect a portion of the flows that Line A would otherwise collect and convey them into the proposed Line B, Stage 1 system. The proposed interim collector structure will be located immediately west of Verbena Drice and north of Park Lane. The proposed structure will be a maximum of 6 ft in height above the existing ground and will vary in width from 20 ft to 350 ft. A 12 ft wide x 8 ft high RCB will extend from the interim collector structure along Park Lane and connect ot Line B, Stage 1 in Verbena Drive. Interim appurtenant drainage improvements, such as concrete ditches and flood walls, along Verbena Drive between Park Lane and Camino Capanero may also be required to collect and conver surface flows into the proposed Camino Campanero Basin. The interim collector structure will be supplanted by the future construction of Line A.

Desert Hot Springs

Riverside

California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Department of Fish and Wildlife, Region 6, Department of Toxic Substances Control, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency, Department of Water Resources

Department of Water Resources

Water Facilities (Type flood control)

flood control facilities

Air Quality, Biological Resources, Cultural Resources, Noise, Transportation