City of Chino
CA

Staff Report

Amendment to the State Route 60 Bridge Crossings Project Design Professional Services Agreement with Michael Baker International.

Information

Department:Public Works DepartmentSponsors:
Category:Report

Attachments

  1. Printout
  2. MBI (A3)

Budget String

Revenue: Expenditure: 5407360 48004-WA18A Transfer In: Transfer Out:

Body

BACKGROUND

The California Department of Transportation (Caltrans) is proceeding with a bridge retrofit project along the State Route 60 Freeway in the City of Chino.  The bridges included in this project are located at Benson, Monte Vista, and Pipeline Avenues. The purpose of the project is to correct non-standard vertical clearances over the SR60. Providing standard vertical clearance for the three bridges will reduce the possibility of these structures being struck by oversize vehicles.

Caltrans notified City Staff that the project will require relocating existing sewer and water lines for these bridges.  At the time, the relocation liability was unclear, and it was believed that the City would bear the relocation cost.  Based on research conducted by Overland Pacific Cutler, LLC (City’s Right of Way Consultant), it was determined that Caltrans is liable for the design and relocation of the water and sewer lines during construction.

On April 3, 2018, Council awarded a Design Professional Services Agreement to Michael Baker International (MBI) to prepare plans and specifications for various utility relocations. Sewer and water line relocation designs for various locations were completed under the original agreement.

 

ISSUES/ANALYSIS

MBI completed a “Bore and Jack” design with a horizontal alignment for a sewer line just west of Benson Avenue. The design required a deep vertical alignment which ended at the bottom of freeway slopes on both sides.  On top of said slopes, homes and pools currently exist.  Upon Caltrans review of the design, it was their opinion that the bore and jack operation would compromise the stability of the slope to the north and south of the alignment and it would possibly cause damage to the two residential properties at the top of the slopes. Therefore, Caltrans requested that a Horizontal Directional Drilling design be followed, keeping the new sewer within the Benson Alignment.  Soon thereafter, staff requested and received a proposal from MBI for the re-design of the sewer in the amount of $140,916.

Staff recommends that the City Council approve the amendment to the Design Professional Service Agreement with MBI in the amount of $140,916 to re-design the sewer line as requested by Caltrans and approve $14,000 for project contingencies for unanticipated design changes.  The proposed amendment would result in total not-to-exceed contract amount/expenditures of $525,426 which includes contingencies and the completed design work for the other utilities within the bridges.

All design costs will be reimbursed by Caltrans as per the utility agreements entered into between the City and Caltrans on May 14, 2019.

 

Attachment: MBI Amendment

 

Meeting History

Jun 4, 2019 7:00 PM Video City Council Regular Meeting
draft Draft
RESULT:APPROVED [UNANIMOUS]
MOVER:Marc Lucio, Council Member
SECONDER:Tom Haughey, Mayor Pro Tem
AYES:Marc Lucio, Eunice M. Ulloa, Paul Rodriguez, Tom Haughey, Mark Hargrove