SR 99 / Elverta Road Interchange Project

SR 99 / Elverta Road Interchange Project

The key components of the proposed project are: Construct a partial cloverleaf interchange at SR 99/Elverta Rd (to replace the existing "at-grade" intersection); Realign the existing southbound lanes of SR 99 to fit under the new overcrossing; Maintain a 46 ft median on SR 99; Widen Elverta Rd to 4 through lanes (2 lanes each direction) within the State access-control limits. Caltrans and Sacramento County standards will be incorporated into the project for improvements on Elverta Rd; Construct a 6ft sidewalk on the north and south sides of Elverta Rd; Realign the existing drainage.irrigation canals (located in all quadrants of the project) just outside the proposed State right-of-way limits, adjacent to the diagonal on- and off-rampos; and Acquire ~41 acres for road right-of-way. The project limits along SR 99 are ~3,700 ft on either side of the existing intersection and ~1,800 ft on either side of the existing SR 99 lanes along Elverta Road. Refer to Plate IS 3 for the interchange design. The interchange will have loop-on ramps in the northwest and southeast quadrants and 4 direct-connecting ramps. The northbound diagonal off-ramp will be a 2-lane ramp with an auxiliary lane on the freeway. The southbound diagonal off-ramp will be a single-lane ramp at its connection to the freeway, with an additional lane beyond the gore area. Both off-ramps will have additional turn lanes at the ramp terminus at Elverta Rd. Traffic signals will be constructed at both ramp intersections on Elverta Road. Both loop on-ramps and the northbound diagonal on-ramp will be constructed with sufficient width to accommodate 2 lanes (striping for two mixed-flow lanes and a HOV bypass lane). This project will construct the interchange to accommodate the future widening of both SR 99 and Elverta Rd. The project will not widen SR 99, but it will realign the existing southbound lanes to fit under the new overcrossing.

Sacramento

Sacramento

Air Resources Board, Transportation Projects, California Department of Conservation (DOC), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 3 (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Central Valley Flood Protection Board, Department of Water Resources, Office of Historic Preservation, Resources Agency, Resources, Recycling and Recovery

Other (public infrastructure-transportation)

public infrastructure

Aesthetics, Agriculture and Forestry Resources, Air Quality, Cultural Resources, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Public Services, Transportation, Wildlife