SR-133/SR-241 Permanent Restoration Project

SR-133/SR-241 Permanent Restoration Project

SR-133 0.5 mi south of Irvine Blvd to SR-241/133/ 0.4 mi south of Portola Pkwy to NB off-ramp to Toll Plz in Orange County Project Description: The California Department of Transportation (Caltrans) District 12 initiated a major damage permanent restoration improvement and promoting resilient operations project to repair severely damaged Transportation assets caused by the 2020 Silverado Fire and to improve the resilience of other existing roadway assets considered to be within a fire hazard severity zone. The improvements will be in Orange County, California on State Route 133 (SR-133) from Post Mile (PM) 11.4 to PM 13.6, and on State Route 241(SR-241) from PM 24.5 to PM 35.7 in the cities of Irvine, Orange, and Orange County, Unincorporated. The proposed project build improvements would include improvements along SR-133 south of Irvine Boulevard (Blvd) Over Crossing (OC) to Junction (Jct) SR-241 and on SR-241 south of Portola Parkway (Pkwy) OC to NB off-ramp Toll Plaza. Two alternatives are being considered, The Build and No Build Alternative. The proposed improvements of the build alternative include necessary repairs on the fire damaged guardrails, drainage facilities, roadway signs, and electrical systems. Moreover, the build alternative also aims to improve the existing infrastructure by making it more resilient to extreme weather and natural disasters. The project’s proactive approach includes drainage improvements, upgrade traffic safety devices, replacement of pavement sections impacted by the culvert replacement, landscaping replacement, electrolier replacement, and conductor loop replacement.

Irvine, Orange

Orange

Southern California

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 12 (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Fish and Game Commission (CDFGC), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California State Coastal Conservancy (SCC), California State Lands Commission (SLC), California Transportation Commission (CATC), Colorado River Board, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 8, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, University of California Natural Reserve System (UCNRS)

Transportation:Highway/Freeway (SR-133/SR-241 Permanent Restoration Project)

Site Plan

Biological Resources, Geology/Soils