Item 8 - Accep. of Sewer Line Repair Replace 14-15 (Pomerado Rd Stone Canyon Rd) Proj.; Bid 18-020 with Scott Michael, Inc., as CompleteApril 20, 2021, Item #8DATE: TO: FROM: CONTACT: SUBJECT: Summary: AGENDA RE PO RT City of Poway April 20, 2021 Honorable Mayor and Members of the City Council Robert Manis, Director of Development Services-P,v\ Andrea Thomas, Associate Civil Engineer 11Lv (858) 668-4605 or athomas@poway.org C/1) v CITY COUNCIL Acceptance of the Sewer Line Repair Replace 14/15 (Pomerado Road/Stone Canyon Road) Project; Bid No. 18-020 with Scott Michael, Inc., as Complete On May 15, 2018, the City Council awarded the contract for the Sewer Line Repair Replace 14/15 (Pomerado Road/Stone Canyon Road) Project; Bid No. 18-020 to Scott Michael, Inc. in the amount of $543,626.00. This action will accept the project as complete. Recommended Action: It is recommended that the City Council: (1) Accept the Sewer Line Repair Replace 14/15 (Pomerado Road/Stone Canyon Road) Project as complete; (2) Authorize the City Clerk to file and record the Notice of Completion; (3) Authorize the release of the retention in the amount of $44,182.90, if unencumbered, 45 days after City Council acceptance; (4) Release the Merchants Bonding Company for Material and Labor in the amount of $883,658.05 after the release of retention; and (5) Retain the Merchants Bonding Company Bond for Faithful Performance for a period of one year. Discussion: The Sewer Line Repair Replace 14/15 (Pomerado Road/Stone Canyon Road) Project was designed to replace a sewer main in Pomerado Road and abandon existing clay pipe due to age and vertical anomalies requiring frequent labor-intensive maintenance. A majority of the project scope is located within City of San Diego city limits and a Right-of-Way Permit was obtained from the City of San Diego for the project. The construction encountered unforeseen obstacles in the course of construction. An unmarked waterline, a mismarked telecommunications duct bank, and a series of subterranean boulders were discovered directly in the proposed path of the pipe installation. The pipe alignment was redesigned multiple times, yet construction continued to experience unforeseen conflicts. The project approach was deemed infeasible due to potential unforeseen conditions and staff sought 1 of 2
April 20, 2021, Item #8alternate solutions with less risk of encountering costly conflicts. There were four change orders for this project, resulting in a final contract amount of $883,658.05. Change Order No. 1 in the amount of $38,271.50 was approved to make repairs to the existing trench where an AT&T duct bank was discovered. Change Order No. 2 in the amount of $185,076.10 was approved to realign the sewer around the AT&T duct bank. Change Order No. 3 in the amount of $158,693.93 was approved to cover costs related to removal of a rock obstruction and delay charges. After processing the fir$.t three change orders, the project was re-evaluated. Construction on the project was halted, and Change Order No. 4 was approved to cover remaining delay costs and delete the unfinished portions of work. The change order credited the project in the amount of $42,009.48. Tasks from the final scope of work were completed in June 2020. Development Services staff have continued to work with Public Works staff to develop a resolution to the on-going maintenance issues in the existing clay sewer main. A construction change has been submitted to the City of San Diego to incorporate design changes that will repair the existing pipeline. Staff will be advertising the redesigned project for construction once the City of San Diego approves the construction change. Environmental Review: The matter of acceptance of public improvements that have been completed is not subject to the California Environmental Quality Act. Fiscal Impact: Sufficient funds are available in the Sewer Line Repair Replace 14/15 (Pomerado Road/Stone Canyon Road) (SWR0001 ). After the retention payment of $44,182.90, there will be an available balance of $369,102.58. Surplus funds will remain in the project account SWR0001, Fund 5200, for use on future sewer line replacement projects. Public Notification: None. Attachments: None. Reviewed/ Approved By: Assistant City Manager 2 of2 Reviewed By: Alan Fenstermacher City Attorney City Manager