SR 99 / Elverta Road Interchange Project

5 Documents in Project


SCH Number
Lead Agency
Sacramento County
Document Title
SR 99 / Elverta Road Interchange Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
roadway / agriculture
Document Description
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.

Contact Information

Joyce Horizumi
Agency Name
Sacramento County
Contact Types
Lead/Public Agency


Cross Streets
Elverta and SR 99
Total Acres
State Highways
E Drainage Canal
Other Location Info
Nearest Community: Natomas

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
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
Development Types
Other (public infrastructure-transportation)
Local Actions
public infrastructure
Project Issues
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

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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