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The City of Issaquah Public Works Department intends to procure engineering consultant services to provide design services for the Olde Town Basin Targeted Drainage Plan. -See attached RFQ documents for full details. Addendum #1- Olde Town Basin Targeted Drainage Plan Location Map attachment added. Addendum #2 - RFQ has been revised and uploaded. - Submittal Content section has been changed.

All outfall ditches, special ditches, critical storm drain structures, erosion control structures, retention basins, etc. shall be constructed, where possible, prior to the beginning of grading operations so that the best possible drainage and erosion control will be in effect during the grading operations, thereby keeping the roadway areas as dry as possible.