Whitelock Interchange

Project Overview 

The City of Elk Grove (City), in coordination with the State of California Department of Transportation (Caltrans), is currently planning a new interchange at Whitelock Parkway and State Route 99 (SR99) as included in the City’s General Plan. The new interchange project (Project) will help to address the expected increased traffic demand due to existing residential growth and planned future developments near Whitelock Parkway. A bike and pedestrian overcrossing of SR99 is included in the project and auxiliary lanes connecting to the new interchange are being considered. Also included is the realignment or modifications to East Stockton Boulevard and widening of Whitelock Pkwy. The Project also includes environmental clearance of high occupancy vehicle lanes on SR99.

Project Background 

As the Project directly connects to an existing Caltrans managed facility, collaboration and approval by Caltrans will be required throughout all phases of the project. The first phase for this type of project is the Project Initiation Phase, which resulted in the project of a Project Study Report - Project Development Support document (PSR-PDS). The purpose of the PSR-PDS is to identify and estimate project scope, schedule and support costs necessary to complete future studies and work needed during the environmental phase. The PSR-PDS for this Project was approved on August 9, 2020.

Current Phase 

With the PSR-PDS completed, the Project has entered into the next phase which is the Project Approval and Environmental Document Phase (PA&ED). The purpose of the PA&ED phase is to analyze and refine alternatives and perform the necessary environmental studies, with the end result being an approved Project Report, California Environmental Quality Act (CEQA) environmental document, and National Environmental Policy Act (NEPA) environmental document. The lead agency for both CEQA and NEPA compliance is Caltrans.


2022 Environmental technical studies and alternatives analysis. 2023 Notice of Preparation Circulation, 30 days, provide comments between September 6th and October 7th. Public meeting during alternatives development. 2025 Prepare environmental document. Public meeting prior to circulation of draft environmental document. public circulation of draft environmental document (45 days). 2026 Final design and right-of-way (property) acquisition. Public meeting at start of final design. Construction - timing dependent on availability of funding.


Left Content

Contact Information

Public Works

Project Manager

Tom Metcalf
Email or (916) 990-1055
Media Contacts

City of Elk Grove

Kristyn Laurence
Email or (916) 478-2206
Right Content

Sign up for Updates

By submitting this form, you are consenting to receive communications from: The City of Elk Grove, 8401 Laguna Palms Way, Elk Grove, CA, 95758, US, http://www.elkgrovecity.org. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact.