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APPENDIX A SCOPE OF ADDITIONAL SERVICES South Main Street to Lafayette Connector Our Design Agreement was made on the basis of our proposal dated August 9, 2010 for the First Project Stage. That Agreement was executed on August 23, 2010. The First and following Second and Third Stages were illustrated on a map included as Attachment E of the Agreement. Attachment E is included for reference and information. The lengthy preliminary design process led to the project now under development as a Single Project, which extends from Ireland Road to Chippewa Avenue and from Lafayette Boulevard to Addison Street. Based upon the preliminary design, a Single Project can be constructed at less cost and time than the original concept of a 3 -stage project completion. Economy of the scale and scope of the project allows the City to utilize available funds for both Right -of -Way acquisition and construction. Additional design effort and time is required to complete the improvements as a single project. For comparison, a map of the current, Single Project is also included (Attachment F). The following items are requested as effort not envisioned in our August 2010 Proposal: • Survey — • Preliminary Design — • Detail Design — • Parcel Plats and Legal Descriptions — Survey Additional topographic survey was needed to include the roadways for the second and third original phases. 1,200 additional lineal feet of roadway survey was needed. Approximately 1 acre of land area was surveyed to account for grading plans needed on the DeBuysser and City Park land for grading plans and the Barbie Street Retention Basin. Survey of the existing Storm Sewer on Chippewa from Main Street intersection west to the old AM General Plant entrance. Also, we have included a small contingency for more survey needs resulting from preliminary design alternatives which are likely to be encountered. Preliminary Design More time and effort was needed in preliminary design proper location of the intersection of Main Street and th e roundabout was shifted once and then again to the intersection.) to account for public sentiment and a East -West Collector Roadway. (The north, finally becoming a signalized October 12, 2011 Page 1 Project File No. 9020.70