Propeller Drive Extension Project (DPW 18-20)

Propeller Drive Extension Project (DPW 18-20)

The project is a public improvement project that includes extending Propeller Drive approximately 1,115 feet east from its current terminus to connect with Taxiway B of the Paso Robles Municipal Airport (Airport) and construction of a new roadway (Empennage Drive), which will be approximately 660 feet long and connect the new section of Propeller Drive to the CAL FIRE Paso Robles Attack Base at the north end of Taxiway B. The new roadways will be a minimum of 25 feet wide. The project would fill and realign an intermittent drainage (Drainage 1) and install a new soft bottom culvert within Drainage 2. Drainage 3 will be realigned through natural bottom swales to direct flows to the proposed culvert and eventually reconnect with Drainage 1 on the north side of Propeller Drive. The extension of Propeller Drive and installation of the culvert are expected to impact all three mapped drainages. The project has been designed to avoid all impacts to mapped wetland features. Once completed, overall vehicle traffic and circulation will be improved. Based on engineer’s estimates, the project will result in the following: • Grading Estimates: Total Cut: 1,323 cubic yards Total Fill: 9,185 cubic yards Total Export: 8,462 cubic yards • Area of Disturbance: Ground disturbance/excavation: 135,000 square feet (3 acres) Pavement overlay/new impervious surface area: 61,050 square feet

Paso Robles

San Luis Obispo

Southern California

California Air Resources Board (ARB), California Department of Fish and Wildlife, Central Region 4 (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 5 (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, California Department of Transportation, Division of Aeronautics (DOT)

California Department of Transportation, Division of Aeronautics (DOT)

Transportation:Local Road (extension and new road; approximately 1,715 linear feet)

Road improvements

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire