SR 06:198 - Laserfiche WebLink

contractor. In order to provide the necessary inspections through completion of the project, it is necessary to amend the contract with S & C. Staff is recommending that the City Council approve Contract Amendment Number 1 for Consultant Services with S & C Engineering in the amount of $18,500.00. Funding for these additional services is being provided under terms of a reimbursement agreement with BIC, which will also need to be amended to reflect these additional services. Honorable Mayor and Members of the City Council: BACKGROUND Bernal Investtnent Company (BIC) , with principal Greenbriar Homes Communities, is required as part of its Bernal Property development project to construct the Valley Avenue Railroad Undercrossing. The project includes the extension of Valley Avenue from Laguna Creek Lane to the intersection of Case A venue crossing the Union Pacific Railroad tracks via a new undercrossing. The street section will allow for one traffic lane in each direction, plus a 6-foot wide disabled vehicle area on both sides of the street and a separated bike/pedestrian walkway. The undercrossing will be similar to the Bernal Avenue undercrossing, but with fewer lanes. In addition to the street extension, the project also involves the rerouting of the Zone 7's B-2 channel around the undercrossing, including the installation of a concrete box culvert where the channel crosses under Valley Avenue. BIC hired DeSilva Gates, a general contractor, to do this work. Because of the complexities of the railroad bridge and undercrossing, the City entered into a consultant contract with S & C Engineering (S & C) to provide engineering shop drawing review and inspection services for the railroad bridge structure, including temporary shoring, the storm drain pump station and the storm drain box culvert for the Valley Avenue Railroad Undercrossing. The City commonly enters into separate consultant contracts to provide engineering shop drawing review and inspection services during the construction of specialty structures, such as bridges, pump stations and reservoirs, as the City does not have staff specialists in these areas. S & C has provided consulting services on a time and materials basis, with services to date totaling $77,170.00. Unfortunately, there have been several major revisions to the contractor's shoring design (which allows the contractor to work closer to the active railroad tracks during the excavation for the undercrossing). These revisions included additional inspections and resolution of welding deficiencies. Additionally, at staff's request, S & C subcontracted with another specialty engineering firm to inspect in-place welds. This inspection revealed several welds that were rejected; consequently, more welds needed to be inspected than were SR:06:198 Page 2 of 4