Agmt12 G&E Engineering System Inc.

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. Modify Annulus where pipe goes through pier caps (for example, fill with suitable restraining material, either flexible or semi-rigid). Note: any option that includes "rigid" type supports will need to also address the potential for bridge deformations / settlements, to make sure there is a combined-compatible upgrade. . Modify bridge . Install new parallel pipe. This may be a self-supporting pipe over the water channel; or an encased / trenchless pipe under the water channel. The "install new parallel pipe" options may be suitable if it is found that the bridge weakness and needed upgrade is more costly than the installation of a new pipe. Consultant will write a short letter report with the existing system evaluation, as well as sketches of the proposed pipe modifications, and submit it to RWC. Consultant will meet with RWC to discuss possible design / retrofit options. ConsultanYs work scope below is based on the assumption that modification of the existing pipe / pipe supports is both technically suitable, and will be adopted; should upgrade of the bridge or a new pipe option be chosen, then the additional effort to design the new pipe (or bridge upgrades wili be an optional task). Consultant will then develop and submit the 50% design submittal. This will include the following drawings (see Table 2): site plan (established from existing drawings); pipe profile (established from existing drawings); pipe support details. Consultant will include a list of technical specifications, and a cost estimate consistent with the 50% design. The City will provide Consultant with comments. Comments which require new design concepts and substantial new work should be provided based on the 50% submittal. Consultant will then develop the 90% design submittal. This will include all drawings (likely 3 sheets); technical specifications; cost estimate; draft calculations. This package is meant to be essentially complete. The City will provide Consultant with comments; intended to be primarily editorial in nature. Consultant will then update the contract documents to reflect comments; incorporate with other items (Tasks 1, 2, 3). Consultant will then issue the 100% contract documents (drawings and specifications). Consultant will provide stamped calculations. Consultant will provide the final engineer's estimate. Facility Number of Potential Drawing List for Contract Documents Drawin s Pipe Bridge 3 Site layout and general notes: 1 sheet. Pipe: 2 and Pipe sheets. (Shorebird Island Pipe Bridge 3 Existing Pipe Repair: 1 sheet. If needed: site layout and Pipe and pipe modifications (seismic) (2 sheets) (Bridge Parkwa Table 2. Drawing List (Potential) ATTY/AGR/2012.001/G&E ENGINEERING Page 16 of 30 REV:01 /10/12