SR 104/Foothill Boulevard Improvements

SR 104/Foothill Boulevard Improvements

The proposed project includes construction of a portion of Foothill Boulevard between the Wildflower subdivision and SR 104, a new connection to SR 104, and associated widening and striping improvements at the SR 104/Foothill Boulevard intersection (post mile 6.55). North of SR 104, Foothill Boulevard currently has a 60-foot right-of-way with two 12-foot wide travel lanes, two 3-foot shoulders, and two 4-foot wide bike lanes. South of SR 104, an approximately 600-foot long segment of Foothill Boulevard would be constructed to connect the Wildflower subdivision to SR 104. The extension of Foothill Boulevard south of SR 104 would be designed similar to the existing roadway north of the intersection. The extension of Foothill Boulevard is not subject to California Department of Transportation (Caltrans) oversight. The proposed improvements to SR 104, including the SR 104/Foothill Boulevard intersection would be located within Caltrans' right-of-way. Therefore, an encroachment permit would be required for construction in these areas. The proposed improvements at the SR 104/Foothill Boulevard intersection would include a new at-grade connection of the southern segment of Foothill Boulevard to SR 104; installation of a stop sign at the northbound lane of Foothill Boulevard accessing SR 104; widening of the northbound SR 104 left turn lane into the project at Foothill Boulevard; construction of a 443-foot long, 12-foot wide, left turn lane, a 90-foot long bay taper and a 718-foot long approach taper at the northbound left turn movement of SR 104; construction of a left turn lane, bay taper and approach taper for the southbound, SR 104 movement to Foothill Boulevard; construction of a 346-foot long, 12-foot wide, left turn, 90-foot long right turn bay taper for the southbound, SR 104 movement. The project also includes installation of an 8-foot shoulder on both the north and south sides of SR 104 and construction of various storm drainage improvements with the right-of-way of the proposed Foothill Boulevard extension. In addition, a 249-foot long type 6A retaining wall is proposed along the south side of the SR 104 widening between Station 337+17 and 339+60. The retaining wall would be constructed of poured in place reinforced concrete or reinforced concrete masonry unit (CMU) and range in height between 5 and 7 feet. It should also be noted that a 10-inch backwash line is proposed by the Amador Water Agency, separate from the proposed roadway improvements, within the Foothill Boulevard right-of-way south of SR 104 and through the intersection of SR 104 and foothill Boulevard. The backwash line would be constructed as part of the backwash pump station plans and extend to the Ione water treatment plant, north of SR 104 beyond the proposed improvements. Construction of the backwash line may occur concurrent with the proposed roadway improvements or at a later date.

Ione

Amador

California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Department of Toxic Substances Control, Department of Water Resources, Office of Historic Preservation, Resources Agency, California Department of Transportation, District 10 (DOT)

California Department of Transportation, District 10 (DOT)

Residential (Units 1181, Acres 482.32), Transportation:Other

Other

Aesthetics, Agriculture and Forestry Resources, Air Quality, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Sewer Capacity, Solid Waste, Transportation, Vegetation, Wetland/Riparian, Wildfire, Wildlife, Utilities