Laserfiche WebLink
Exhibit A <br /> C. Formulate proposed cross sectional geometrics for the superstructure <br /> D. Perform preliminary design and sizing of primary superstructure elements—beams and <br /> concrete deck <br /> E. Determine total depth between profile grade line on overpassing roadway and top of rail of <br /> existing underpassing tracks <br /> F. Determine configuration and arrangement of substructure units and associated foundation <br /> system. <br /> G. Evaluate alternatives and formulate recommendations for retaining wall systems required to <br /> support embankments of approach roadways. <br /> H. Develop preliminary estimate of cost for the structure and associated retaining wall systems. <br /> 2. The following will be performed for a structures study for the alternative of raising all legs of the <br /> intersection at Brush College Road and Faries Parkway: <br /> A. Determine number, configuration, and length of spans <br /> B. Evaluate superstructure alternatives—PPC girder, steel beam, steel plate girder <br /> C. Formulate proposed cross sectional geometrics for the superstructure <br /> D. Perform preliminary design and sizing of primary superstructure elements—beams and <br /> concrete deck <br /> E. Determine total depth between profile grade line on overpassing roadway and top of rail of <br /> existing underpassing tracks <br /> F. Determine configuration and arrangement of substructures and associated foundation <br /> system. <br /> G. Evaluate alternatives and formulate recommendations for retaining wall systems required to <br /> support embankments of approach roadways. <br /> H. Develop preliminary estimate of cost for the roadway structure and associated retaining wall <br /> systems. <br /> Task 00700—Environmental Studies <br /> URS will perform the following environmental tasks for the extended project: <br /> 1. Identify and analyze existing land use patterns, future land use, and existing and planned <br /> developments within the extended project limits. <br /> 2. Assess existing community features and social and economic factors and conditions to establish a <br /> baseline condition. URS will assess social and economic impacts based on data collected. This will <br /> include photo documentation pertaining to all residential and commercial buildings and land uses. <br /> 3. Provide a photo log, map and map key of any potentially historic structures within the extended <br /> project limits. If access to private property is required, the Consultant will notify the City of Decatur <br /> who would in-turn prepare a certified delivery letter to property owners and provide a copy to the <br /> Consultant for field use. <br /> 4. Investigate the presence and condition of streams located within the extended project limits. A <br /> summary of the information collected will be provided and this summary will be incorporated into <br /> 7-26-11 A-8 <br />