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Exhibit A <br /> 4. A railroad drainage study will be made to assess existing drainage conditions and assess any <br /> modifications to it that may be needed to accommodate any changes to the alignment or <br /> configuration of the railroad's track that will be needed as part of the project. <br /> Task 00400—Alternate Geometric Studies <br /> 1. Design criteria will be established for the proposed improvement. The design criteria will consist of <br /> the following: <br /> A. Establish Functional Classification <br /> B. Establish acceptable Levels of Service <br /> C. Establish the project termini <br /> D. Perform Bicycle Facilities Assessment and establish the accommodations for sidewalks/bike <br /> paths within the proposed improvement. <br /> E. Determine cross section elements; design speed, number of lanes, width of lanes,median <br /> type and width, sidewalk/bike path width and locations, side slope configuration,type and <br /> thickness of proposed pavement. <br /> 2. The following conceptual studies will be performed for the underpass and overpass options at the NS <br /> crossing: <br /> A. Establish horizontal alignment of Brush College Road. <br /> B. Prepare conceptual vertical alignment studies of Brush College Road. It is assumed that the <br /> railroad tracks in the NS yard will remain at their existing elevation. The studies will look at <br /> both the underpass and overpass options. <br /> C. Conceptual property impacts and right-of-way needs will be reviewed for each of the options <br /> considered. <br /> D. Evaluate impacts to side streets and develop street closure/access plan. <br /> E. Review overhead and underground utility impacts far each of the options considered. <br /> Coordination will be performed to determine extent and potential options available for <br /> relocation along with associated costs. ADM piping systems will be included in this review. <br /> Exhibits and related supporting information will be prepared for utility coordination. <br /> F. Estimated construction costs will be developed for the underpass and overpass alternatives at <br /> the NS crossing. <br /> G. Prepare Executive Summary with exhibits including typical sections, plan/profile drawings, <br /> aerial plan discussing the data and recommended alternative. <br /> H. Prepare for and attend planning and review meetings <br /> I. Address Executive Summary review comments and prepare final Executive Summary. <br /> 4. The recommended alternative will be further developed and refined. The following will be <br /> performed as part of this task: <br /> A. Refine and establish the proposed roadway vertical alignment <br /> B. Establish clear zones,barrier/attenuator warrants and uses to determine clear width of <br /> roadway. <br /> C. Perform cross section analysis to determine extent of right-of-way and easement needs. <br /> Analysis to also establish extent of retaining walls to minimize right-of-way impacts. <br /> Scope 6-4-10 A-8 <br />