The California Department of Fish and Wildlife (CDFW) has executed Streambed Alteration Agreement EPIMS-SDO-23273-R5, pursuant to Fish and Game Code
section 1602, to the project Applicant, Grande Menlo Park, LLC. The overall project consists of rough grading, including removal of an old soil stockpile, removal of the temporary water quality control basin installed on-site in 2008 for the Riverview Professional Center development west of Riverview Parkway, rerouting the existing storm drains, and re-grading the Las Colinas drainage channel. The project will widen the channel to 25 feet wide at the channel bottom and 70 feet wide at the top of bank. The channel bottom will be planted with perennial native hydrophytic herbs, and the channel banks will be planted with native wetland and riparian trees and shrubs in the lower zone, and with native riparian and upland trees and shrubs in the upper zone. Five pipes will convey runoff from modular wetlands in the development area to outlets in the channel. The construction of Riverview Parkway will include a crossing of the reconstructed channel consisting of two 14-foot box culverts with headwalls and flow attenuation riprap, measuring approximately 175 linear feet.