SCH Number 2007031152

Project Info

Title

Rough Grading Permit for a 10-acre Parcel Located North of Sandalwood Drive on 7th Street

Description

The proposed project consists of a Rough Grading Plan for an approximate 10-acre site. No development project is planned for this site at this time, though the parcel is zoned for commercial development in the future. Approximately 15,680 cubic yards of soil will be moved as part of the grading operations. The proposed grading plan would not require the export or import of soil; the existing soils would be balanced on site. There are two drainages and an unnamed stream that would be filled as part of the proposed project. The two drainages are intermittent and are located in the middle and southern portions of the project site, respectively. The unnamed stream is a blue-lined stream (also intermittent) in the northern part of the project site. In the northern portion of the project site, the unnamed blue-line stream would be filled and drainage across that portion of the site would be via a new 30-inch and 24-inch underground pipeline. This new pipeline would connect to an existing 30-inch pipeline at I-10 and the eastern project boundary, and to an existing 36-inch pipeline at 7th Street on the west. The new pipeline would be built along a proposed City of Calimesa Drainage Easement. As part of this portion of the project, the existing 7th Street drain would be removed and replaced with a new "V" gutter drain and a desilting basin drain pipe and riser would also be installed. In the southern portion of the project site, the two intermittent drainages would be filled and one 24-inch pipeline would be constructed. The new pipeline would be connected to an existing 24-inch pipeline located at I-10 and the eastern project boundary and to an existing 30-inch pipeline at 7th Street to the west. A City of Calimesa Drainage Easement is also proposed at this location. Both pipelines include the installation of manholes and pipe headwalls. The existing on-site Yucaipa Valley Water District pipeline located near the middle of the site would be protected in place with 48-inches of cover, mounding over the pipeline would be required. A 2-foot by 6- to 12-inch deep V-ditch is proposed around the northern, eastern, and southern portion of the site to transport runoff water to the existing storm drain system along 7th Street. In addition, the onsite power poles would be protected in place per Southern California Edison guidelines.

2 documents in project