Agenda - Public Works Committee - 01/17/2023

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Chairperson Riley asked Civil Engineer IV Linton asked for a brief description of the differences between NGVD29 and NAVD88. Civil Engineer IV Linton replied that the NGVD29 data was established in 1929, using the technology available at that time. He stated that the NAVD88 started using GIS and GPS technology. He stated that the NAVD88 was developed using better technology with more data points. He stated that the difference in vertical elevations between the two is about four or five inches. He stated that staff is moving forward with the 858.1 elevation, using the NAVD88 data which will increase the water level in Wetland 114P. He stated that they will tighten up the plans and await the review of the DNR. Motion by Councilmember Musgrove, seconded by Councilmember Woestehoff, to recommend the City Council authorize advertising for quotes for this project. Motion carried. Voting Yes: Chairperson Riley, Councilmembers Musgrove and Woestehoff. Voting No: None. 5.03: Consider Recommending City Council Authorization to Prepare Plans and Specifications for 2023 Pavement Management Program Projects Assistant City Engineer Feriancek reviewed the staff report and recommendation from staff to recommend City Council authorization to prepare plans and specifications for proposed 2023 Improvement Projects #23-02, #23-05, #23-06, #23-07, and #23-10. He stated that this will allow staff to proceed with design and preparation of plans and specifications so bids can be advertised as early in 2023 as possible to obtain the best bid prices possible. Councilmember Woestehoff referenced the pseudo basketball court in the south parking lot at Central Park and asked if that would be removed as part of Improvement Project #23-02, noting that court gets a lot of use. Assistant City Engineer Feriancek replied that the south lot is not planned to be reconstructed as they would be working on the main lot on the north side. He stated that it is not currently planned to resurface that lot as it was not in the original scope of the project. He recognized that it could be a convenient time to do that, but that funding is limited and that the south lot would be a convenient staging area for contractors working on the project. Chairperson Riley commented that it would seem odd not to do it at the same time. Councilmember Woestehoff commented that the south lot is not in great shape and people often play basketball on that court. He stated that he would want to look at that as part of the project. Councilmember Musgrove asked if the southern lot stalls would remain at a 90-degree angle versus the diagonal stalls. She stated that she also likes keeping the tree median to provide additional shade. Public Works Committee / November 15, 2022 Page 6 of 9