Greenville-Banning Channel Improvements Project

Greenville-Banning Channel Improvements Project

Downstream of California Street: The project would remove and replace the existing concrete lining, and extend the lining to the tops of the banks. California Street to New Hampshire Drive: The proposed project would steepen and concrete-line the channel side; partially concrete-line the channel bottom; and widen the earthen bottom by two feet. The New Hampshire Drive RCB would be replaced to improve channel capacity. The road would be closed for an estimated 8-10 weeks. Upstream of New Hampshire Drive: The project would steepen the channel sides and widen the bottom. The channel would be concrete-lined to increase its capacity.

Costa Mesa, Orange

Orange

California Air Resources Board (ARB), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California State Lands Commission (SLC), Caltrans, Division of Aeronautics, Department of Water Resources, Office of Emergency Services, California, Office of Historic Preservation, Resources Agency, Resources, Recycling and Recovery, California Department of Transportation, District 12 (DOT)

California Department of Transportation, District 12 (DOT)

Water Facilities , Other (Maintenance & Improvement)

Maintenance/improvement to flood control channel

Aesthetics, Agriculture and Forestry Resources, Air Quality, Coastal Zone, Cultural Resources, Cumulative Effects, Drainage/Absorption, Economics/Jobs, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire, Wildlife