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Northeast Drainage Ditch Restoration - Phase 1 April 23, 2012 <br /> Scope of Services - Onsite Engineering, LLC Page A-2 of 6 <br /> Topographic Surveys (R.W. Lamb & Associates,LLC) (cont) <br /> Task Description <br /> 6 Locate and measure trees <br /> a. Locate center of tree. <br /> b. Identify size and type of tree using IDOT Standard Specifications. <br /> 7 Locate topographic data <br /> a. Visible utilities. <br /> b. Pavement areas. <br /> c. Buildings. <br /> d. Other topographical features. <br /> 8 Field check survey <br /> a. Field check for quality control and assurance. <br /> 9 Boundary , Right of Way and Easement Locations <br /> a. Research record documents related to the boundary, right of way <br /> and easement lines within the project limits. <br /> b. Establish existing boundary, right of way and easement lines <br /> within the project limits. <br /> c. Prepare new Permanent Easement Plats (Assuming 2). <br /> 10 Prepare survey documents <br /> a. Prepare topographic drawing. <br /> b. Prepare point files. <br /> Final Design Phase: Review of Existing Drawings & Field Conditions <br /> Task Description <br /> 1 Review Existing Design Plans &Profiles <br /> a. Define as-built design of horizontal alignment and vertical profile <br /> of the existing ditches and detention basins through review of <br /> Record Drawings provided by the City. <br /> b. Define baselines and stationing used on past projects. <br /> c. Define as-built cross sections from past projects. <br /> 2 Evaluate Existing Field Conditions <br /> a. Inspect and document condition of existing utility crossings. <br /> b. Inspect and document eroded areas. <br /> c. Inspect and document condition of existing drainage structures. <br />