Agenda #: 5.5
Meeting Date: May 20, 2025
TO: Honorable Mayor and Members of the City Council
FROM: Daniel Fox, City Manager
TITLE: NOTICE OF COMPLETION FOR THE INTERSECTION SAFETY IMPROVEMENTS PROJECT (CIP# TI24301).
STRATEGIC
GOAL: Safe, Sustainable & Healthy Community
RECOMMENDATION:
Approve and authorize the Public Works Director to file a Notice of Completion for the Project.
FINANCIAL IMPACT:
Funding for this Project was included in the FY 2023/24 Capital Improvement Program.
The final construction cost totaled $270,981.77, which is $30,644.23 under the authorized amount of $301,626.00 (construction agreement: $251,355.00; contingency:
$50,271.00).
BACKGROUND/DISCUSSION:
The Project included traffic signal upgrades and safety enhancements at the following nine (9) signalized intersections:
:
1. Diamond Bar Blvd & Sunset Crossing Rd – Installed high-visibility crosswalks and added new nearside vehicle indications.
2. Diamond Bar Blvd & Golden Springs Dr – Restriped intersection approach lanes and added nearside vehicle indications.
3. Diamond Bar Blvd & Pathfinder Rd – Upgraded to Audible Pedestrian Signal (APS) push buttons.
4. Diamond Bar Blvd & Brea Canyon Rd – Installed accessible pedestrian countdown signal heads and APS push buttons.
5. Golden Springs Dr & Carpio Dr – Installed accessible pedestrian countdown signal heads and APS push buttons.
6. Brea Canyon Rd & Golden Springs Dr – Added high-visibility crosswalks,
nearside vehicle indications, and APS push buttons.
7. Grand Ave & Diamond Bar Blvd – Installed accessible pedestrian countdown signal heads and APS push buttons.
8. Grand Ave & Summitridge Dr – Added high-visibility crosswalks and new nearside vehicle indications.
9. Pathfinder Rd & Fern Hollow Dr / Brea Canyon Rd – Installed high-visibility crosswalks and added two nearside vehicle indications.
A construction contract was awarded to PTM General Engineering Services, Inc. on July 16, 2024, in the amount of $251,355.00, with an approved contingency of $50,271.00, totaling $301,626.00 in authorized funding.
Due to material availability constraints and extended procurement lead times, the Notice to Proceed was issued on February 24, 2025, and construction began on March 4, 2025, and concluded on March 27, 2025. All punch list items were completed on April 7, 2025.
To meet current safety and operational standards, additional work was performed, including:
• Removal of existing striping and application of refreshed lane markings. • Installation of reflective pavement markers and detailed pavement elements. • Electrical upgrades including new wiring, pedestrian signal head replacements, and conduit cleaning.
• Replacement of damaged lids and components to ensure system functionality.
These changes were essential to deliver a complete and reliable upgrade in line with long-term safety objectives. One change order (CO #1) was issued, resulting in a net increase of $19,626.77, bringing the final project cost to $270,981.77, within the overall authorized budget.
PREPARED BY:
REVIEWED BY:
Attachments:
1. 5.5.a Notice of Completion