A 34-mile regional expressway connecting Sacramento’s growing communities.
The Capital SouthEast Connector is a planned regional expressway linking Interstate 5, Highway 99, State Route 16, and Highway 50 across five member jurisdictions. Formed as a Joint Powers Authority in 2006, the project has delivered 11 miles of expressway and two highway interchanges to date, with construction underway on additional segments.
A 34-mile corridor across five jurisdictions.
The Connector follows a 34-mile arc across the southern and eastern edge of the Sacramento region, running from Interstate 5 in Elk Grove, east along Grant Line Road through Sacramento County, to Highway 50 in El Dorado County. Each of the three corridor segments — Kammerer Road, Grant Line Road, and White Rock Road — its respective member jurisdiction and advances independently as funding and design mature.
6 miles · I-5 to Hwy 99
City of Elk Grove
19 miles · Hwy 99 to White Rock Road
Sacramento County, City of Elk Grove, City of Rancho Cordova
9 miles · Grant Line to Hwy 50
Folsom and El Dorado County
Delivering the Connector, segment by segment.
The Connector is a long-term, multi-phase build, advanced as funding, design, and partnerships align. The project is tracked across three stages: what is complete and open today, what is underway and anticipated to open by 2030, and what is planned for delivery after 2035.
Mile Expressway
Miles Completed
Interchanges Completed
Member Jurisdictions
Constructed Improvements
RAISE Grant Secured
Complete and open now
Six completed roadway segments and two highway interchanges, delivered over two decades of regional partnership.
- 2023: Kammerer Road Reconstruction
- 2023: Grant Line Road Widening (Waterman to Bradshaw)
- 2023: Scott Road Realignment
- 2023: White Rock Road Phase 1 (Prairie City Rd to E. Bidwell St)
- 2018: White Rock Road (Grant Line Rd to Prairie City Rd)
- 2015: Hwy 50/White Rock Road/Silva Valley Parkway Interchange
- 2015: Grant Line Road UPRR Overhead
- 2009: Hwy. 99/Kammerer Road/Grant Line Road Interchange
Explore each segment of the corridor.
The Connector corridor is divided into three named segments, each with its own design standards, construction timeline, and funding status. The summaries below detail what has been completed, what is actively under construction, and what remains in planning across Kammerer Road, Grant Line Road, and White Rock Road.
Connecting I-5 to Highway 99 in Elk Grove.
Kammerer Road links Interstate 5 to Highway 99 across the southern end of the Connector corridor, providing regional access for freight, commuters, and emergency response. The reconstructed segment was completed in 2023, with a three-mile extension now being designed and moving towards construction ready.
Kammerer Road Reconstruction (Bruceville Rd to Hwy 99)
Hwy 99/Kammerer Rd/Grant Line Rd Interchange
A 3 mile extension, fully is being designed with a $170 million construction budget. The segment is currently acquiring right-of-way and seeking construction funding.
The 19-mile stretch from Highway 99 to White Rock Road.
Grant Line Road runs 19 miles from the Highway 99 interchange east to White Rock Road. It is the longest stretch of the Connector corridor, carries significant regional freight, and spans multiple member jurisdictions. Two segments are complete, one is in active delivery, and the remaining 14 miles are in long-term planning.
Grant Line Road, Bradshaw to Douglas (14 miles)
Grant Line Road Widening (Waterman to Bradshaw)
Grant Line Road UPRR Overhead
A 3.6-mile safety and freight mobility upgrade, budgeted at $55 million. The project is actively acquiring right-of-way and is seeking construction funding.
Connecting Grant Line Road to Highway 50.
White Rock Road links Grant Line Road to Highway 50 through Folsom, and El Dorado County. With four completed segments, including the Hwy 50/White Rock Road/Silva Valley Parkway Interchange, it is the most fully delivered portion of the Connector to date.
Scott Road Realignment
White Rock Road Expressway Phase 1 (Prairie City Rd to E. Bidwell St)
White Rock Road (Grant Line Rd to Prairie City Rd)
Hwy 50/White Rock Rd/Silva Valley Pkwy Interchange
A 2.5-mile reconstruction, budgeted at $40 million. This segment connects the existing completed portions in Folsom and El Dorado County, completing White Rock Road as a continuous regional expressway.
Support from across the region.
The Connector advances through sustained partnership with federal, state, tribal, and local leaders across the Capital Region.
Built on public oversight.
The Capital SouthEast Connector is delivered by a Joint Powers Authority formed in 2006 by five member jurisdictions. Public funds are tracked against project milestones, board meetings are open to the public, and financial reporting is published on a regular cycle.
2002
SACOG completes the Route Study, identifying the potential alignment for a regional expressway
2004
Project placed before voters via Measure A, and approved by 75% in Sacramento County
2006
Connector JPA formed by five member agencies
2011
Programmatic EIR Approved
2014
Adopted into Sacramento County General Plan
Today
11 miles open, $230M invested, $460M remaining
GFOA Distinguished Budget Presentation Award
Recognized by the Government Finance Officers Association for budget transparency and clarity in FY 2024/2025.
Open public board meetings
All JPA board meetings are open to the public. Agendas, materials, and recordings are published on the Board Meetings page.
Fund Balance Reserve established
In May 2024, the JPA Board formalized a Fund Balance Reserve policy to ensure continuity of operations across funding cycles.
Formation Documentation
Joint Exercise of Powers Agreement
Executed December 12, 2006. The founding agreement that established the Elk Grove – Rancho Cordova – El Dorado Connector Authority across five member jurisdictions and defined its powers to plan, design, finance, and construct the Connector.
Bylaws
The operating rules governing the Authority's Board procedures, quarterly meetings, officer roles, and internal governance. Board meetings are conducted under the Ralph M. Brown Act.
Sacramento County General Plan Circulation Element Amendment
Adopted May 28, 2014 by the Sacramento County Board of Supervisors (Resolution 2014-0397). Incorporates the Capital SouthEast Connector into the County's General Plan, with updates to the Transportation Plan, Circulation Element, Bikeway Master Plan, Delta Protection Element, and Open Space Element.
The road ahead.
The Connector has delivered 11 miles of regional expressway and leveraged more than $230 million in public investment to date. Completing the remaining 23 miles requires closing a $460 million funding gap and navigating persistent challenges around regional planning, multi-jurisdictional coordination, and shifting costs. Here's how the JPA is responding, and what's ready to build the moment funding lands.
Go behind the scenes of the Connector project, from engineers and contractors to community leaders and elected officials.
