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Safety Notice | Aviso de Seguridad
Please adhere to detour routes and exercise caution in construction zones.
Por favor, siga las rutas de desvío y tenga precaución en las zonas de construcción.
Colima Road – Traffic Control
Project Summary
Los Angeles County residents deserve access to state-of-the-art transportation infrastructure that is safe, resilient, sustainable and equitable. The County is investing in enhancing the quality of life in the unincorporated communities of Hacienda Heights and Rowland Heights by making significant improvements to the roadway along Colima Road.
In partnership with the community, Los Angeles County Public Works is set to enhance approximately 5 miles of roadways, including traffic signal improvements, curbs, gutters, sidewalks, driveways, cross gutters, and curb ramps. To further promote cycling and ensure safer travel for bicyclists, new bike route signs will be installed along Colima Road. Additionally, the medians will be landscaped to beautify the immediate communities.
Public Works is pursuing a proactive approach to community engagement, making sure that local concerns are heard and addressed. Public Works is committed to issuing advance notice to both residents and businesses prior to construction activities, to minimize community disruption.
We encourage residents and business owners to share concerns or feedback with our designated representative listed at the bottom of this page. Your input is invaluable, and we are dedicated to addressing issues that may arise during the project’s development. By collaborating, we can ensure a successful outcome that benefits the entire community.
Project: Colima Road Improvement
Los Angeles County residents deserve access to state-of-the-art transportation infrastructure that is safe, resilient, sustainable and equitable. The County is investing in enhancing the quality of life in the unincorporated communities of Hacienda Heights and Rowland Heights by making significant improvements to the roadway along Colima Road
Resources
Project Progress
During Construction
What you can do:
During construction, please slow down, be alert, obey all posted traffic signs and allow for extra travel time. Your patience, cooperation, and understanding are appreciated as we revitalize this corridor.
*Construction is dynamic and dependent on many variables and is subject to change.
Events and Updates
Project Schedule
| Start Date | Project Details |
|---|---|
| Summer 2025 to Winter 2026 | This will be 1 of 4 stages implemented within the project. Stage 1: Project will start from Halliburton and Colima heading West to City of Whittier Boundary. Duration is estimated to last from Summer 2025 to Winter 2026. Pedestrian and vehicular access will remain open with temporary sidewalk detours and traffic control implementations. |
| Winter 2026 to Summer 2026 | Stage 2: Project will start from Azusa Avenue and Colima heading West to Halliburton Road. Duration is estimated to last from Winter 2026 to Summer 2026. Pedestrian and vehicular access will remain open with temporary sidewalk detours and traffic control implementations. |
| Summer 2026 to Winter 2027 | Stage 3: Project will start from Walnut Hall Road and Colima heading West to Azusa Avenue. Duration is estimated to last from Summer 2026 to Winter 2027. Pedestrian and vehicular access will remain open with temporary sidewalk detours and traffic control implementations. |
| Winter 2027 to Summer 2027 | Stage 3: Project will start from Fullerton Road and Colima heading West to Walnut Hall Road. Duration is estimated to last from Winter 2027 to Summer 2027. Pedestrian and vehicular access will remain open with temporary sidewalk detours and traffic control implementations. |
Project Update:
This is to inform the public that paving along Colima Road between Casino Drive to Halliburton Road will be at nighttime. It is anticipated that construction would start on Sunday, February 22, 2026, to Sunday, March 15, 2026. The hours of construction will be from 7:00 P.M. to 5:00 A.M.
Community Meetings
The County might host occasional community meetings to keep area residents and businesses up to date on progress and important phases of construction.
Share your name and contact information with the project team to be notified of these meetings and other updates.
Contact
Nadeem Syed, PE
Project Manager
Los Angeles County Public Works
NSyed@pw.lacounty.gov
For urgent issues at the construction site, please contact Public Works dispatch at 800-675-HELP (4357).
For reasonable ADA and Title VI accommodations, interpreting services, and materials in other languages, please contact Public Works at (626) 979-5333.
Para acomodaciones razonables de ADA (Ley de Estadounidenses con Discapacidades) y Adaptación del Título VI, servicios de interprete y materiales en otros idiomas, por favor contactarse con Obras Publicas a (626) 979-5333.
如果您需要合理的便利安排、口譯服務和其他語言的材料，請聯繫公共工程部，電話 (626) 979-5333。此服務為免費服務。