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Project 06 -1723 RFA Change Order No. 1 January 23, 2012 Page 2 C. To construct the bridge deck, forms are placed adjacent to the girders; girder elevations need to be uniform. After the girders were post- tensioned, each girder's curvature was different. Therefore, it was recommended to weld two steel angle iron on top of the girders, to adjust for the elevation difference. The situation is expected to be the same for the next half of the bride and the cost of this order includes that future work. Prior approval for this change order was granted on October 24, 2011. TOTAL COST = $21,664 D. A girder for the bridge deck is a continuous structural element, it was pre- fabricated into three segments with the connection at the top of the piers. The connection was made by overlapping the rebars at each pier. The contract piers are not wide enough to allow for sufficient overlapping of the rebar. As a result, the structural engineer recommended joining the rebars by slide -in couplings. This change order provides for cutting the rebars to fit the space and install slide -in. Prior approval for this change order was granted on November 15, 2011. TOTAL COST = $4,595 E. Field condition reveals that area between the new retaining wall at the easterly embankment and the adjacent property would need to be graded to allow the property owner to use this area. However, the grading in this area was not included in the contract. This change order provides additional grading, landscaping and modifications of the irrigation system. Prior approval for this change order was granted on November 15, 2011. TOTAL COST = $5,394 APPROVED AS TO FUNDS AND ACCOUNTS: �' c�tycc�r aZ!Isc A Raul Godinez, II U Francisco Gutierrez �Q Executive Director Executive Director Public Works Agency Finance and Management Services Agency PROJECTS /06- 1723/CO/06 -1723 RFA CO 4