Since its incorporation in 1960, the unprecedented growth of San Dimas has transformed the City from an essentially rural area to a well-balanced community offering industrial, commercial, and residential living. In addition to the 1,700 acre Frank G. Bonelli Recreational Area which lies within the City boundaries, there are many parks such as San Dimas Canyon Park, a city-owned golf course (San Dimas Canyon Golf Club), and over 27 miles of equestrian trails for riding. The city services include an extensive recreational program for youth and for senior citizens, and the City boasts a new modern City Hall, with excellent provisions made for County Sheriff and Fire Departments, along with a fine Los Angeles County Library and Engineering Regional Office.
City Construction Projects
Visit this page for construction and related notices for work occurring in San Dimas.
Please click here for the most up-to-date information on the Foothill Gold Line.
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CC2022-06 Via Verde Street Improvement Project

Construction Update:(4/24/2023)
We would like to inform you that the contractor has scheduled the completion of the base layer of the pavement section for this week, followed by the construction of the final rubberized asphalt layer of the asphalt pavement section. The rubberized pavement work will commence this week and continue on next week.
Furthermore, we would like to advise you that Sully-Miller, the contractor, will be temporarily closing the Via Verde 57-FWY ON/OFF ramp on May 6th (Saturday) from 5 AM to 5 PM. This closure is necessary to facilitate the paving work on the Caltrans portion of the Via Verde Project.
We understand that this temporary closure may cause some inconvenience, and we apologize for any disruption this may cause. We assure you that we are making every effort to minimize the impact and complete the work as quickly and efficiently as possible.
Thank you for your cooperation and understanding.
The City of San Dimas has awarded a contract to Sully-Miller Contracting Company to reconstruct the roadway on Via Verde from 500’ west from the 10-FWY on/off ramp intersection to the 57-FWY on/off ramp intersection. The planned improvements will provide both an aesthetic enhancement to the neighborhood and improve access for residents. Construction is anticipated to start January 23rd, 2023.
Project Improvements Include:
Concrete improvements include ADA curb ramps, curb & gutter, sidewalks and driveway approaches.
Rehabilitation of the asphalt pavement section that will provide an aesthetically pleasing, smoother and quieter street surface for many years.
Construction is anticipated to start January 23rd, 2023 and will take approximately three months. During construction, there will be temporary traffic impacts and traffic may be restricted. This is necessary to provide adequate safety for passing traffic and to provide a smooth long-lasting finish. There will be times that driveway access is restricted on Via Verde. You will be notified in advance when this is necessary. The City and its Contractor will work to minimize inconvenience as much as possible. Your cooperation in following temporary traffic control devices will help reduce the duration of the construction and allow the City to restore normal traffic patterns in a timely manner.
While the construction impacts are temporary and inconvenient, its benefits are expected to last for decades to come. We would like to thank you in advance for your patience and cooperation during construction.
For any questions on this project, contact the Public Works Department at (909) 394-6240 or email publicworks@sandimasca.gov. Reasonable Accommodations will be made for individuals who are affected by the project. Please Call (909) 394-6240.
Construction Update:
September 09th, The City’s Contractor is scheduled to complete Street paving on San Simeon, Santa Cruz, San Marcos, San Luis Rey Drive, and San Antonio Rd. The streets will be closed to vehicle access and residents should anticipate not having vehicular access to their garages from 7:00am to 5:00pm.
September 13th, The City’s Contractor is scheduled to complete Street paving on Via Vaquero West of San Dimas Avenue. There will be limited vehicle access on Via Vaquero due to the scheduled street paving. Please allow additional travel time to accommodate for the construction. The streets will be posted “No Parking” in advance of the street closures. Please adhere to all construction signage. Waste management will service trash bins early in the morning.
To help minimize construction impacts, the City will continue to waive overnight parking restrictions starting through September 13 for all delineated parking stalls on Via Vaquero, on the West side of San Dimas Avenue North of Via Vaquero and at the City Municipal Park and Ride South of Railroad between Monte Vista and San Dimas Avenue as shown on the attached.
For any questions, please contact the City’s Public Works Department at (909) 394-6240 or via email at publicworks@sandimasca.gov.
Project Description
The Via Vaquero et al Street Improvement Project will reconstruct approximately 150,000 square feet of pavement using approximately 4,250 tons of asphalt concrete. The project will rehabilitate Via Vaquero West of San Dimas Avenue including all connecting public streets. This project will provide an aesthetically pleasing, smoother, and quieter street surface for many years. Along with the street rehabilitation the project will replace minor curb, gutter, sidewalk panels and corner ramp upgrades improving accessibility.
Construction is scheduled to start August 15, 2022 and is anticipated to take approximately three months to complete. The project cost is approximately $1.4 million and of that cost $300,000 is SB 1 Road Maintenance and Recovery Act of 2017 funded (Gas Tax). The new pavement’s estimated useful life is 20 to 25 years.
Due to construction, portions of the street must be closed to provide adequate space for traffic and to provide a smooth long-lasting finish. The City and the contractor will work to make this closure as short as possible. However, residences adjacent to the construction should anticipate not having access to their garages from 7:00AM to 5:00PM on specific days. Notifications will be provided prior to the access restrictions.
For any questions on this project, contact the Public Works Department at (909) 394-6240 or email publicworks@sandimasca.gov. Reasonable Accommodations will be made for individuals who are affected by the project. Please Call (909) 394-6240.
CC2022-03 Derby Road, Kent Street & Leed Court Street Improvement Project
Construction Update: Derby Road, Kent Street & Leed Court Street Improvement Project
Date: 08-22-2022
The City’s contractor R.C. Becker and Son Inc. is anticipated to begin construction July 18th, 2022.
Manholes and utility boxes/valves were adjusted on 8/18. Contractor will be paving around the manholes and utility boxes/valves on 8/23.
Project Description
Derby Road, Kent Street & Leed Court road will be under construction by July 18th, 2022. The project will reconstruct approximately 63,000 square feet of pavement using 1,700 tons of asphalt concrete and 1,200 SF of portland cement concrete improvements. The new pavement will provide a smooth-running road surface free from defects, quieter and fix cross fall drainage issues. The project is estimated to cost approximately $500,000.00 and of that cost $400,000.00 is SB 1 Road Maintenance and Recovery Act of 2017 funded (Gas Tax).
Construction is anticipated to take 1 month to complete.
To accommodate vehicles that are normally parked in garages accessed from these streets, the City will allow overnight street parking for all streets and limits per enclosed graphic starting July 17th. All other parking restrictions (red curb, fire hydrant, no stopping zones, etc.) shall remain in effect.
While the streets are closed for construction, Waste Management will be picking up the bins early in the morning.
The City appreciates your cooperation in this important neighborhood enhancement project and apologizes for the temporary inconvenience associated with the construction process.
For any questions on this project, contact the Public Works Department at (909) 394-6240 or email publicworks@sandimasca.gov.
Construction Impacts: Work will be phased and access will be limited during certain construction phases when: concrete is being poured, existing pavement is being removed, new pavement is being placed and rolled. Affected residents will be notified in advanced.
Reasonable Accommodations will be made for individuals who are affected by the project. Please Call (909) 394-6240.
CC 2021-03 Covina et al Street Improvement Project
Construction Update: Covina et al Street Improvement Project
Date: 12-18-2021
Scheduled Work The City’s contractor Gentry Brothers Inc. is scheduled to place asphalt pavement (the final cap) on Saturday , December 18 from Arrow Highway to Cliffside Drive (reference image below) starting at 8:00 am through 5:00 pm.
Construction Impacts: One traffic lane will be maintained in each direction on Covina Blvd during final asphalt paving . Left turn vehicle traffic on Covina Blvd will be impacted during the scheduled paving. Access will be restricted at each drive approach for a short duration while the paving machine and crew places asphalt directly in front of each drive approach. Access will be maintained to all businesses. Sections of sidewalks and/or crosswalks will be closed to pedestrian traffic while remaining concrete work is being completed.
Large equipment will be utilized during this construction phase. Please plan for additional travel time due to construction and adhere to the temporary traffic control and signage.
For questions or concerns please contact the Public Works Department at (909) 394-6240 or via email at publicworks@sandimasca.gov.
Project Description
The Covina Boulevard et al Street Improvement Project will reconstruct approximately 325,000 square feet of pavement using approximately 9000 tons of asphalt concrete. The project will rehabilitate Covina Boulevard between Arrow Highway and the 57 freeway on/off ramps providing an aesthetically pleasing, smoother, and quieter street surface for many years. Along with the street rehabilitation the project will replace minor curb, gutter, sidewalk panels and corner ramp upgrades improving accessibility.
Construction is scheduled to start October 4, 2021 and is anticipated to take approximately three months to complete.
Where feasible this project uses environmentally friendly and cost-effective construction processes including Full-Depth-Reclamation (FDR) which recycles the existing asphalt concrete and underlying aggregate base/soil material. The existing pavement will be pulverized or crushed, mixed with cement, and rolled into a stronger sub-base; left to cure for up to five days per lane and closed to vehicle traffic. Following the cure time, the new asphalt concrete pavement shall be constructed. The project cost is approximately $2 million and of that cost $600,000 is SB 1 Road Maintenance and Recovery Act of 2017 funded (Gas Tax). The new pavement’s estimated useful life is 20 to 25 years.