File #: 18-1361    Version: 1
Type: Agenda Item Status: Approved
File created: 8/28/2018 In control: Board of Supervisors
On agenda: 11/13/2018 Final action: 11/13/2018
Title: Community Development Services, Department of Transportation, recommending the Board retroactively approve and authorize the Chair to execute Contract Change Order 2 with Granite Construction Company in the amount of $182,820 for the Cosumnes Mine Road & Bridge Storm Damage Repairs Project, Contract 2719, PW 18-31209, CIP 78700/78701/78712; and make the following finding to waive the competitive bidding process for the change order: the nature of the subject of the contract is such that competitive proposals would be unavailing or would not produce an advantage, and the advertisement for competitive bid would thus be undesirable, impractical, or impossible. (Est.Time: 5 Min.) FUNDING: Local and State discretionary funding initially (100%), with Department of Transportation staff working with the Federal Emergency Management Agency and the California Office of Emergency Services to obtain reimbursement. (Local, State, and Federal)
Attachments: 1. A - Contract Change Order 2, 2. Staff Presentation BOS Rcvd 11-13-18, 3. Executed Contract Change Order
Related files: 18-0807, 19-0183, 18-1835
Title
Community Development Services, Department of Transportation, recommending the Board retroactively approve and authorize the Chair to execute Contract Change Order 2 with Granite Construction Company in the amount of $182,820 for the Cosumnes Mine Road & Bridge Storm Damage Repairs Project, Contract 2719, PW 18-31209, CIP 78700/78701/78712; and make the following finding to waive the competitive bidding process for the change order: the nature of the subject of the contract is such that competitive proposals would be unavailing or would not produce an advantage, and the advertisement for competitive bid would thus be undesirable, impractical, or impossible. (Est.Time: 5 Min.)

FUNDING: Local and State discretionary funding initially (100%), with Department of Transportation staff working with the Federal Emergency Management Agency and the California Office of Emergency Services to obtain reimbursement. (Local, State, and Federal)
Body
DISCUSSION / BACKGROUND
The Board authorized Community Development Services, Department of Transportation (Transportation) to advertise the Cosumnes Mine Road & Bridge Storm Damage Repairs Project (Project) for bids on May 8, 2018 (Item 27). Transportation opened bids on May 31, 2018, and the Board awarded the Project to Granite Construction Company (Granite) on June 12, 2018 (Item 47).

Construction began on August 6, 2018 with dewatering and excavation of the washout area at the north abutment of the bridge where the storm damage occurred. Once the abutment footings were exposed, Transportation observed that the footings were founded on material different than what was anticipated in the geotechnical study. Due to limited access near the north bridge foundation, the nearest location a boring was able to be drilled was approximately 45 feet north of the existing footings. The information obtained from the boring was different than the actual subsurface conditions at the repair area. Once the actual foundation subgra...

Click here for full text