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Certified MBE, State of Indiana; City of Indianapolis INDOT Certified DBE <br />9102 N. Meridian Street, Suite 200 • Indianapolis, IN 46260 • Phone 317-566-0629 • Fax 317-566-0633 • www.SJCAinc.com <br />October 6, 2023 <br />Stephan Summers <br />Troyer Group <br />3930 Edison Lakes Pkwy <br />Mishawaka, IN 46545 <br />RE:Muessel / Holy Cross SRTS DES 1900447 <br />St. Joseph County, Indiana <br />Supplemental Survey Request #1 <br />Project Description <br />Provide additional topographic survey as requested by the design engineer at various locations <br />throughout the project area. The limits of the additional topographic survey are shown on the attached <br />Exhibit 1. <br />Scope of Work <br />SJCA will furnish a plat or map of survey in accordance with the following: <br />Research including the last deed of record for adjoining owners, old road plans, right-of-way grants, section <br />corner information, tax cards, subdivision plats, auditor’s maps, benchmark information, regulated drain <br />information, utility maps, recorded surveys, etc. <br />Locate all centerline monuments, section corners or property corners as-needed to determine the centerline <br />alignment and existing right-of-way. <br />Use GPS and conventional radial survey methods to locate all section corners, property and centerline <br />monumentation. Horizontal datum shall be the Indiana Geospatial Coordinate System for the subject <br />project’s County from GPS observations using INDOT’s Continuously Operating Reference System (InCORS). <br />Run a level circuit to establish project vertical data. Vertical datum shall be NAVD88 from GPS observations <br />using INDOT’s Continuously Operating Reference System (InCORS). Project benchmarks shall be set at ¼ mile <br />intervals (minimum of 3) with descriptions and elevations shown in the field book. <br />Topographic Route survey from the back of curb to the right of way line for the areas shown in red and yellow <br />in the attached Exhibit 1, which exhibit was provided by Troyer Group via email on 5/12/23. Additionally full <br />topo survey of the intersection of Vasser Ave. and Wilbur St. for a distance of 50 feet beyond the apparent <br />existing right of way along each intersecting street. <br />Submittal of a design ticket through Indiana811 to obtain name, address and contact information for each <br />utility company with facilities within the survey limits. <br />Download the data and complete CAD drawings of planimetric features as well as topographic features <br />including the creation of a digital terrain model and contours. <br />Determination of right-of-way lines and adjacent boundaries based on deeds, monuments, plats, surveys and <br />best field evidence available. <br />Set and reference control points for use by the contractor during the construction phase of the project. <br />Preparation of a survey field book per current INDOT standards including a sketch of an elevation view of the <br />bridge. <br />Delivery of all files as currently required by the Indiana Design Manual. CAD files shall be delivered in <br />MicroStation .dgn format.