Agenda - Public Works Committee - 11/17/2020

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Sunfish Lake Boulevard/CSAH 57 & Alpine Drive, and to Nowthen Boulevard/CSAH 5 & Alpine Drive. Since Alpine Drive is a City Street the City would be responsible for all costs associated with installing any FYA improvements at these intersections. Construction could easily occur in 2021 if SEH, Inc. is directed to start their analysis efforts in December 2020 and required future approvals are granted in a timely manner. Timeframe: Approximately 25 minutes for presentation and discussion. Observations/Alternatives: Observations: The final construction cost for the FYA modifications to the signal system at Armstrong Boulevard & Sunwood Drive/147th Avenue was $29,760. The estimated average cost to modify an existing signal system to include FYA operations is $20,000 to $50,000. Plans and specifications would be required to advertise for bids for construction of any FYA modifications, which would require separate approvals. Costs to prepare plans and specifications for the FYA improvements at Armstrong Boulevard & Sunwood Drive/147th Avenue were around $6,500. It should be noted that traffic volumes and patterns are likely to change after the grade separation improvements occur at CSAH 56/Ramsey Boulevard & Highway 10, after CSAH 116/Bunker Lake Boulevard is reconstructed between CSAH 83/Armstrong Boulevard and CSAH 57/Sunfish Lake Boulevard, and after a signal system is installed at CSAH 116/Bunker Lake Boulevard and Sunwood Drive. All of these are likely to have some impact on FYA operations at Sunwood Drive & CSAH 56/Ramsey Boulevard, which could result in a future Anoka County request to remove or modify FYA improvements. This should be confirmed as part of the analysis. Alternatives: Alternative #1 — Motion to recommend City Council authorization to hire SEH, Inc. to analyze the feasibility of modifying signal systems to add flashing yellow arrow operations at the intersection(s) of Alternative #2 — Motion of other. Funding Source: The estimated cost for analyzing the feasibility of adding FYA operations to one signal system is $1,800 if the City provides traffic counts, and $3,500 if SEH needs to provide traffic counts. If multiple intersections are analyzed, the cost per signal system would be reduced accordingly. For example, if 6 signal systems are analyzed the estimated cost per signal system would be closer to $1,300. The Public Improvement Revolving Fund would be the funding source for any such analysis. Recommendation: Staff supports either alternative. Action: Recommend City Council authorization to hire SEH, Inc. to analyze the feasibility of modifying signal systems to add flashing yellow arrow operations at the intersection(s) of Attachments 2017 FYA Analysis