Segment 1: Orangethorpe Avenue to Lambert Road
This segment was the first project to be approved with the completion of the environmental phase in December 2007. The project is currently in the design phase and construction is scheduled to begin in fall 2010, depending on state funding availability.
Five Miles of Improvements
The SR-57 is an important truck route and integral part of Southern California’s freeway network. Currently, drivers experience substantial traffic congestion during peak afternoon hours. In an effort to improve traffic flow, OCTA, in cooperation with the Caltrans District 12, is adding a northbound lane along a five-mile section of the freeway in Orange County between Orangethorpe Avenue in Placentia to Lambert Road in Brea.
Project Improvements
Improvements to this five-mile stretch include the addition of one general-purpose lane along with merging lanes, standardization of existing lane widths and shoulders, and reconfiguration of certain on-ramps and off-ramps.
Key Objectives
- Reduce traffic congestion and delays
- Increase traffic flow and safety for the 144,000 to 158,000 vehicles projected to travel this section of the freeway daily
- Facilitate the flow of goods and services via the SR-57
- Achieve a major component of the Measure M2 Freeway Improvement Plan
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Conform to state, regional and local plans and policies
Next Steps
Design plans, specifications and estimates have been finalized in preparation for the construction phase to begin in fall 2010, depending on state funding availability.
Project Timeline
| Project Approval: | December 2007 |
| Design Completed: | December 2009 |
| Construction Begins: | Fall 2010 |
Freeway Improvements Open:
| Summer 2014 |
Funding Sources
The estimated total cost of the project is $142 million. Project funding sources include the state Proposition 1B: Corridor Mobility Improvement Account Program funds and Orange County's Measure M2 – the half-cent sales tax for transportation improvements approved in 2006.
On Nov. 7, 2006, county residents also approved Measure M2 (M2) for another 30 years to 2041. An M2 Early Action Plan was implemented in 2007 and allows OCTA to advance the implementation of M2 projects – such as the SR-57 widening – before 2011.
Keep Me Informed
We welcome your input on the SR-57 Northbound Widening Project. Please enter your comments and contact information here. Be sure to indicate if you would like to be contacted regarding questions or concerns about the project. Thank you for your opinion.
Segment 2: Katella Avenue to Lincoln Avenue
The environmental phase for the Katella to Lincoln segment was completed in November 2009. The design phase is expected to be completed by fall 2010, with construction scheduled to begin in summer 2011, depending on state funding availability.
Three More Miles of Improvements
Improvements to this three-mile stretch include adding one northbound general purpose lane from the Katella off-ramp to the Lincoln on-ramp. Also included is additional widening to bring the general purpose lane width, the high occupancy vehicle (HOV) lane width, and the inside shoulder width into conformance with Caltrans design standards.
Key Objectives
- Reduce traffic congestion and delays
- Increase traffic flow and safety for the 142,000 to 158,000 vehicles projected to travel this section of the freeway daily
- Facilitate the flow of goods and services via the SR-57
-
Achieve a major component of the Measure M2 Freeway Improvement Plan
- Conform to state, regional and local plans and policies
Next Steps
Design plans, specifications and estimates are being developed in preparation for the construction phase to begin in summer 2011, depending on state funding availability.
Project Timeline
| Project Approval: | November 2009 |
Design Completion:
| Spring 2010 |
| Construction Begins: | Summer 2011 |
| Freeway Improvements Open: | Late 2014 |
Funding Sources
The estimated total cost of the project is $41 million. Project funding sources include the state Proposition 1B: Corridor Mobility Improvement Account Program and Orange County's Measure M2 – the half-cent sales tax for transportation improvements approved by voters in 2006.
Keep Me Informed
We welcome your input on the SR-57 Northbound Widening Project. Please enter your comments and contact information here. Be sure to indicate if you would like to be contacted regarding questions or concerns about the project. Thank you for your opinion.