R2012-10 APPROVING CHANGE ORDER 1 TO THE AGREEMENT WITH URS CORPORATION FOR FINAL DESIGN OF THE SOUTH SHORES BRIDGE

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As of Friday,January 20, 2012, we have spent$214,303.31. With the current contract amount at $219,200.00 this leaves $4,896.69. Chuck Hunsinger has told me that BGM will be submitting an invoice to URS for$4,871.69, so that will take most of the remaining budget. However BGM still has $31,083.02 remaining in their budget per their agreement with URS. According to Chuck Hunsinger, some of the remaining fee will be required to develop the electrical power scheme for the residential pumping station. BGM needs to see the electrical panel at#54 South Shores. Their budget also included fee for the bidding and construction phase. URS also included fee for the construction phase, however that budget was used to address issues that developed during the final design. The budget for many of the tasks was exceeded in December as we worked to complete the plans for a January 6, 2012 prefinal submittal. Reasons for the over-run include: 1) Scope for the final design also included work to complete Phase I, however Phase I comments had not been received when scope and budget were developed. Comments regarding 4(f)impacts and noise analysis required additional work to complete Phase I. 2) After starting the final design, we discovered that the sewer to remain in place on the west side of the bridge would interfere with proposed guardrail posts adjacent the 10' shoulders. Guardrail posts had to be relocated to miss the sewer and this resulted in a wider shoulder with more fill being placed in Lake Decatur. 3) With the sewer now located under the shoulder on the west side of the bridge, we discovered that the sewer did not have adequate cover, since it will now be exposed to vehicular loads. The profile was adjusted to provide additional cover over the sewer pipe. 4) The adjustment to the profile resulted in the project limits being extended to the west and another property (Vancil) is now affected. 5) Manhours and fee were established assuming that the new sewer pipe on the east side of the bridge would be buried in the roadway embankment. It was determined that this option would be difficult to construct, considering that the sewer pipe needs to be constructed in advance of other activities. The pipe also interfered with drainage. For these reasons, the pipe was moved to the north to be in line with the new manhole and the pipe on the proposed sewer bridge. Pipe piers were then designed so support this portion of the pipe. Design of the pipe piers was not in the scope. 6) The original borings were taken when there were no plans for a sewer bridge or a center pier on the roadway bridge. Although not in the scope, URS requested SKS to obtain an additional soil boring. The soil boring was taken in Lake Decatur, adjacent to the existing structure. The results were used to design the substructure units for the sewer bridge and the center pier of the roadway bridge. 2