Agenda - Public Works Committee - 11/21/2023

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5.2. Public Works Committee Meeting Date: 11/21/2023 Primary Strategic Plan Initiative: Address infrastructure needs. Title: Update on Halls Dover Acres Street Reconstructions, Improvement Project #24-02 Purpose/Background: Purpose: The purpose of this case is to update the Public Works Committee on the Halls Dover Acres Street Reconstructions, Improvement Project #24-02. Background: City Improvement Project #24-02 proposes to reconstruct the streets within the Halls Dover Acres subdivision, generally located east of Nowthen Boulevard between 157th Lane and 158th Lane. The 2023 — 2032 Capital Improvement Program (CIP) identifies the streets within this subdivision for street reconstruction in 2024. A street segment summary is attached to this case. Existing Conditions The streets are 24 feet wide rural section with drainage swales adjacent to the roadway, totaling 0.98 miles in length. Traffic counts have not been taken, but Staff anticipates higher than typical neighborhood traffic along 157th Lane due to the daycare center located at the intersection of 157th Lane and Nowthen Boulevard, but not rising to the level of a collector street. Sewer and water exist in the subdivision to the east, but the Halls Dover Acres subdivision is not located within the MUSA. The 2040 Comprehensive Plan proposed water system improvements does include extending 12- inch trunk watermain along157th Lane from Potassium Street to Nowthen Boulevard aspart of a trunk system Y loop. This trunk watermain extension is proposed to occur as part of this project. Project History • 2023 — 2032 Capital Improvement Program — listed as street reconstruction for 2024. • June 13, 2023, Resolution #23-130 the Ramsey City Council accepted proposals for topographic survey of the project area. • June 27, 2023, Resolution #23-129 the Ramsey City Council accepted proposals for geotechnical report of the project area. • August 22, 2023, Resolution #23-198 the Ramsey City Council ordered Staff to prepare plans and specifications. Pavement History The streets within Halls Dover Acres were built in 1976. The street received an overlay improvement in 1990, followed by crack seal / seal coat improvements in 1996 and 2004. Maintenance crews have performed patching over the last several years, including extensive patching in 2023. Proposed Improvements Staff review of the geotechnical report found generally sandy subsoils, ideal for both roadway embankment and utility support, throughout the project area. Because of this, subsoil corrections are not anticipated, and the full - depth reclamation (FDR) design process will be used. The existing alignment and profile of the streets are proposed to generally be put back to existing. However, Staff found the roadway curves and centerlines tend to