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PROPOSAL TO CITY OF SANT~4 A NA PAGE 22 AMENDMENT TD BRIDGE RETROFIT CONTRA CT SELS'MIC RETROFIT STRA TEG Y Total Sheet Count 11 4. INITIAL STRUCTURE PLANS WKA will follow the Caltrans practice and the plans will be checked independently by a registered engineer. The intent is to swap between the designers and checkers in order to maintain objectivity of the independent checking process. Differences in the calculations will be reconciled first before the Initial Plans will be submitted to Caltrans for review and approval. WKA will prepare a final quantity takeoffbased on the standard Item List developed in accordance with the Caltrans Standard Specification and SSP. Designer quantity take-offs will be compared with the independent quantity takeoffs following the completion of unchecked Details Plans. We will also prepare a complete set of independent quantity check calculations of all structural components. The quantities will be compared with the designers quantity takeoffs, and all structure bid items will be checked in accordance with Caltrans Bridge Design Aids Section 11 "Estimating". Suggested Work Days schedules will be prepared for the individual structures, as well as for the group of structures to be advertised and constructed in single phase. The Caltrans Standard Specification will be the basis of the project specification. We will develop a project specification based on the Caltrans Standard Special Provisions (SSP) in metric format. WKA will submit the Initial Structure Plans to Caltrans and the City for review and approval. This stage of the submittal will include the followings: Bridge Plans and Details shown in Table 1 Standard Special Provisions Quantity and Initial Engineers estimates 5- INTERMEDIATE PS&E SUBMITTAL wka will collect all the comments on the initial PS&E from the city and from Caltrans, and other reviewing agencies that issue permits for construction of the bridge and the relocation of utilities. We will respond the comments with written resolution letters that describes the method of dispositions of all comments. Revisions to the initial PS&E submittals will be made after the proposed dispositions are approved by the reviewers. The PS&E packages will be re-submitted to Caltmns for final review and approval. 6. FINAL PS&E SUBMITTAL The final approval submittal will implement the design corrections as noted in the agency's review and our response comments. We will also produce our final Engineers Estimates as part of the final PS&E Submittal. We will also prepare the final RE pending files in accordance with Caltrans OSFP I&P Guides. Page 6 of 22