Agenda - Council - 04/22/2025 - Laserfiche WebLink

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The streets within High Point were constructed in 1979 and the street within Section 22 Unplatted was constructed in 1989. All street segments received an overlay in 2001, and subsequently two crack seal / seal coat treatments in 2007 and 2014. Significant patching has occurred over the last several years. GPR was performed on the streets in 2024. At the time, the streets averaged 2.5 to 4.3 inches of bituminous over 2.5 to 4.8 inches of aggregate base, with much variability from street to street. Staff review of the geotechnical report found clean sands, ideal for pavement support within the project area. Additionally, groundwater is not anticipated to be a concern for the street reconstruction. Proposed Improvements The bituminous curbing is proposed to be replaced with surmountable concrete curb and gutter. At driveways, a curb cut similar to what is typically placed in B-Style curb will be placed, to avoid high transition from the roadway to driveways. The new pavement section will include 3.5-inches of new bituminous pavement over 4-inches of aggregate base. The aggregate base is proposed to be made of recycled reclamation. In the project area, 8 of the 12 existing flumes were replaced with storm sewer inlets and storm sewer piping. It was not found feasible to replace the remaining 4 flumes, primarily due to the excessive grading and impact to properties which would be required. Restoration of the impacted boulevards will include a minimum of 4-inches topsoil and hydroseed with a residential turf seed mix. Though the pavement is generally going back to the same location and elevation, driveway aprons will be replaced to match into the new concrete curb and gutter. In general, the boulevard impacts and driveway impacts will occur within 6 feet of the existing pavement. The Zirconium Street cul-de-sac is proposed to be reconstructed into a 100-foot-diameter cul-de-sac, centered within the existing right-of-way. The existing cul-de-sac is 165 feet in diameter. By replacing the cul-de-sac to city standard dimensions, significant savings in both construction and long-term maintenance will occur. The existing driveways and boulevard adjacent to the cul-de-sac will be extended approximately 33 feet. At this time, staff are not proposing to adjust the existing right-of-way, which is 200 feet in diameter. A standard cul-de-sac has a 120-foot-diameter right-of-way. The plans angled the driveways to accommodate extending the property lines approximately 40-feet in the future, if desired. A discussion on resizing the right-of-way is proposed for a future meeting. Preliminary Schedule Remaining • Council Awards Contract to the Lowest Responsible Bidder o April 8, 2025 • Contractor Begins Construction o Spring 2025 • Contractor Substantially Completes Construction o New bituminous pavement in -place, topsoil and seed in -place o August 30, 2025 • Contractor Final Completion o Verify final restoration; punch list created o September 27, 2025 Notification: If Council awards a contract for construction, letters will be mailed to property owners with updates on the project status. Engineering staff maintain City improvement project webpages with the most current project information during construction. This can be found on the City website, Engineering Department page. Time Frame/Observations/Alternatives: