City of Walnut
Intersection at
Grand Avenue & La Puente Road
October 2025 – April 2026
Areas of Impact:
- Grand Avenue
& La Puente Road
Impact to Traffic & Access:
- Reduced Speed: The posted speed limit in the work zone will be reduced to 40 MPH for the safety of workers and motorists.
- Lane Closures: At least one lane in each direction will remain open at all times.
- Driveway Access: Maintained at all times unless special arrangements are made.
- Parking Restrictions: Temporary “No Parking” signs will be posted 72 hours in advance in affected areas.
- Pedestrian Access: At least one pedestrian crossing will remain open in both the north–south and east–west directions during construction.
- Transit Service: Bus stops within the work zone may be temporarily relocated.
The City of Walnut began construction on the Grand Avenue and La Puente Road Intersection Improvement Project on Monday, October 6, 2025. Work is anticipated to be completed by the end of April 2026, and work hours are Monday - Friday, 7:00 a.m. - 4:00 p.m. This project will upgrade traffic signals, improve drainage, reconstruct sidewalks and curb ramps for ADA compliance, and enhance roadway safety. As part of the initial work, the existing monument sign and several trees at the southeast corner of Grand Avenue and La Puente Road will be removed to accommodate a new dedicated right-turn lane.
Contact Information:
For questions or concerns during construction, please contact the City of Walnut Public Works Department: (909) 598-5605 | publicworks@walnutca.gov
The City of Walnut appreciates your patience and cooperation as it completes these important improvements to enhance safety and traffic flow in the community.