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Mr. Culver reviewed the proposed modifications at County Road C2 and Scenario <br />2 with the Commission. <br />Member Wozniak asked what is triggering the need for noise walls. <br />Mr. Culver stated because Federal dollars are being used the City has to follow <br />Federal noise standards and anytime capacity is added to a road the existing noise <br />needs to be analyzed and then what the noise will be with the improvements and if <br />the noise goes over a certain threshold then the noise needs to be mitigated which <br />is where noise walls are discussed. <br />Mr. Culver reviewed the Federal Aid requirements with the Commission and <br />indicated a lot of Federal Aid projects do not happen because the costs can be <br />prohibitive to do. Unless a project was being planned to do anyways, it normally <br />does not make sense to use Federal Aid dollars because of the added costs. <br />Member Misra assumed residents in that area are going to want to see the sound <br />walls go in because of the added noise potential. <br />Mr. Culver stated some will want it and some may not. He indicated the single- <br />family residents north of Lydia do want the noise walls. <br />Member Misra inquired how tall the noise wall will be. <br />Mr. Culver indicated it depended on the design of the noise wall, but most are <br />fourteen feet or higher. It depends on the terrain surrounding the area. <br />Mr. Culver reviewed scenario three with the Commission indicating Snelling <br />Avenue would go over Lydia. He noted the greatest advantage to this scenario is <br />there would be a grade separated pedestrian and bike crossing. The bottleneck <br />would be eliminated at Lydia with a signal still existing at C2 and County Road C. <br />Mr. Culver stated the biggest concern with this scenario is the cost which will be <br />approximately nine million dollars and the City would not know how much traffic <br />would be used on Lydia between Snelling and Hamline instead of using County <br />Road C or C2 and Lydia east of Snelling is very residential. <br />Mr. Culver stated with scenario one and doing only the small improvements the <br />City is looking at pretty significant reductions in delay under those minor <br />encroachments without any additional delay on Snelling Avenue. He stated the <br />consultant recommended an additional improvement to County Road C, which <br />would be an additional $300,000, to build the dual lefts to get onto Snelling Avenue <br />from County Road C which would provide some additional benefits to the side <br />street and the overall intersection delay. He noted that is something the City is <br />going to work with the County and the State on to go after some additional funds. <br />Page 4 of 7 <br />