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  Consent-Community Services   # 33.       
Community Services  
Meeting Date: 12/07/2021  
Brief Title:    Amendment 2 for Bridge Design Services
From: Taro Echiburu, Director, Department of Community Services
Staff Contact: Todd N. Riddiough, Principal Civil Engineer, Department of Community Services, x8039

Approve second amendment to Agreement No. 13-0159 with Quincy Engineering, Inc. to provide for additional survey, environmental, historical mitigation, and bridge design work, increasing the total contract amount by $179,012.05 for the Rumsey Bridge Project, and extending the term of the agreement through December 31, 2024. (No general fund impact) (Echiburú/Riddiough)
Recommended Action
Approve and authorize the Chair to sign the second amendment to Agreement No. 13-0159 with Quincy Engineering, Inc., to provide for additional survey, environmental, historical mitigation, and bridge design work, increasing the total contract amount by $179,012.05 for the Rumsey Bridge Project, and extending the term of the agreement through December 31, 2024. 
Strategic Plan Goal(s)
Safe Communities
Reason for Recommended Action/Background
This amendment will allow Quincy Engineering to proceed with additional survey, environmental, historical mitigation, and bridge design work needed to advance right of way acquisition and complete final design of the Rumsey Bridge Project.

On December 6, 2011 the Board of Supervisors approved an agreement with Quincy Engineering, Inc. for bridge design and environmental services on two County bridge projects, County Road 99W over Buckeye Creek near Dunnigan, and County Road 41 over Cache Creek in Rumsey (Rumsey Bridge Project).  The contract was executed on September 17, 2012 and work on both projects began shortly thereafter.

The consultant’s work for the County Road 99W bridge replacement over Buckeye Creek concluded after the bridge construction was completed in summer/fall 2017.

The design and environmental process for the Rumsey Bridge Project has been more complicated due to the historical significance of the bridge which required a more formal decision-making process to determine whether to rehabilitate or replace the bridge, and the significant public involvement that has taken place for these project complexities. Contract Amendment 1, approved in 2016, captured some of the additional environmental effort required for the Rumsey Bridge Project.  Amendment 2 is needed to modify the Agreement for the following reasons:  
  • Additional parcels have been identified, above and beyond those originally anticipated ten years ago, as being impacted by the Rumsey Bridge Project, and thus require additional surveying and plat and legal description work added to project Task 4 for the right of way acquisition process.
  • An additional amount of environmental coordination will be required due to changes made to the California Environmental Quality Act (CEQA) guidelines checklist since 2013 and transitioning to using the recently adopted Yolo County Habitat Conservation Plan/Natural Community Conservation Plan (HCP/NCCP) for environmental mitigation in project Task 7.
  • The approved “Memorandum of Agreement Between the California Department of Transportation and the California State Historical Preservation Officer Regarding the Rumsey Bridge Replacement Project (MOA)”, necessary due to the historic nature of the bridge, requires several, unanticipated historical mitigation activities that need to be added to project Task 7.
  • California Department of Transportation (Caltrans) has recently revised their standards for bridge barrier rails and approach guardrails, which necessitates redesign of those previously designed Rumsey Bridge Project elements and an update to the bridge structural calculations in project Task 9.
  • Design coordination and interface with Caltrans for an encroachment permit to realign CR 41 with State Route 16 was not previously accounted for in the original agreement.  Efforts are being added for this work in project Task 11.
  • Rumsey Bridge Project was approved by Caltrans to proceed into the right of way phase in March 2021, and therefore right of way acquisition and bridge final engineering design will not be able to be completed by the current term end date of December 31, 2021.
  • The existing Agreement extended from 2012 through 2021 because of the extended length of time it typically takes to complete bridge projects. The Agreement contains an annual ‘cost of living’ escalation clause that provides for increases to the contractor’s direct labor expense, not to exceed the smaller of the actual rate increase granted to an employee, or 2-percent.  Because the Rumsey Bridge Project has progressed at a slower pace than expected, the escalation clause creates a situation where more effort than expected is occurring at a later date in the contract, and the contract cap does not include an allowance for increasing this escalation. With this amendment, the rates provided in Attachment A will be considered the consultant’s new, base hourly rates, until the next request for escalation made by the consultant that is allowed by the Agreement. This amendment will also increase the annual ‘cost of living’ escalation limit to 3-percent.
The consultant’s proposed cost for the additional work totals $179,012.05.  The amendment would increase the contract cap by $179,012.05, to $1,631,679.81, and extend the term end date of the Agreement to December 31, 2024.
Collaborations (including Board advisory groups and external partner agencies)
County Counsel approved the agreement amendment as to form.
Competitive Bid Process

Fiscal Impact
Fiscal impact (see budgetary detail below)
Fiscal Impact (Expenditure)
Total cost of recommended action:    $   179,012
Amount budgeted for expenditure:    $   370,000
Additional expenditure authority needed:    $   0
One-time commitment     Yes
Source of Funds for this Expenditure
Explanation (Expenditure and/or Revenue)
Further explanation as needed:
The amount budgeted in the FY 2021/22 Road Fund budget for the Rumsey Bridge Project is sufficient to cover the cost of the recommended action.  Project costs are 100% reimbursed with federal funds through the Highway Bridge Program.
Att. A. Second Amendment

Form Review
Inbox Reviewed By Date
Nicholas Burton Nicholas Burton 11/24/2021 01:09 PM
Taro Echiburu Taro Echiburu 11/29/2021 10:18 AM
Financial Services Shelby Milliren 11/29/2021 03:21 PM
County Counsel Hope Welton 11/30/2021 04:55 PM
Madison York Madison York 12/01/2021 07:39 AM
Elisa Sabatini Elisa Sabatini 12/01/2021 12:34 PM
Form Started By: Todd Riddiough Started On: 11/10/2021 03:39 PM
Final Approval Date: 12/01/2021


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