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Scope of Services—Civil Design Homer L. Chastain &Associates, LLP <br /> Downtown Decatur Streetscape March 3, 2011 <br /> Main Street Corridor Page Al of 11 <br /> Exhibit A <br /> The following scope is based on information gathered during the project interview, a <br /> brief meeting with the City of Decatur held at 1:30PM on January 27, 2011, email <br /> correspondence and a meeting with Matt Newell on March 4, 2011. <br /> Chastain will be responsible for the following work items: <br /> Main Street Corridor <br /> Massie Massie Associates (MMA) will lead the preparation of plans and specifications. <br /> 1. Topographic surveys of the entire corridor <br /> a. Horizontal control <br /> i. Recover horizontal control used for the Reynolds Block <br /> development. <br /> ii. Set 20 intervisable new control points with GPS using double <br /> occupation and traverse with total station. <br /> iii. Tie into Water Street control and adjust to same datum. <br /> b. Vertical control <br /> i. Recover Benchmarks used for the Reynolds Block development. <br /> ii. Set new benchmarks throughout project. <br /> c. Locate property corners <br /> i. Locate visible property corners. <br /> d. Cross section roadways - 107 sections 80 feet wide. <br /> i. Cross section roadways at 50 foot intervals to develop existing <br /> DTM. <br /> ii. Assume Main St is 2,000 feet with an additional 2,825 feet of side <br /> streets for a total of 4,825 feet. <br /> iii. Assume 10% additional sections as needed for DTM accuracy <br /> e. Locate drainage structures and measure inverts <br /> i. Locate center of casting or grate. <br /> ii. Identify type of structure, frame and lid. <br /> iii. Measure pipe inverts and diameters. <br /> f. Locate and measure trees <br /> i. Locate center of tree. <br /> ii. Measure tree diameter in accordance with Article 201.10(b)(1) of <br /> the IDOT Standard Specifications. <br /> g. Building ground floor elevations including steps and ramps <br /> i. Locate position and elevation of exterior door thresholds. <br /> ii. Locate all steps and ramps. <br /> h. Record topographic data <br /> i. Light poles <br /> ii. Water valves <br /> iii. Gas valves <br /> h\Mumcipahues\City_of Decatur\5679_Downtown_StreetscapeManagement\Main St Scope 3-9-1 Ldoc <br />