To address this issue, maintenance and improvements would be made to the Arboretum Waterway (removal of sediment, narrowing of channel, and changes to waterflow), adjacent landscaping. Phase 2 will start at the Wyatt Pavilion Footbridge and extend west of the Mrak Hall Drive Bridge, stopping adjacent to King Hall. The project will dry out the channel, remove the accumulated sediment, recontour the channel, install a series of small headwalls and weirs to control water elevations and facilitate the movement of recirculated water.
This project qualifies as categorically exempt under Exemption Class 1 of the Guidelines for the implementation to the CEQA. Class 1 exemptions for existing facilities apply to the operation, repair, or minor alteration of facilities. Applicable mitigation measures from the 2003 LRDP EIR remain in effect for implementation of the project. In addition, none of the exceptions for application of a categorical exemption apply to this project.