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Prairie Street slated for regrading and culvert upgrades after city rejects current work
Summary
Council heard that contractor-subcontracted work on Prairie Street will be redone to meet city standards: plans include installing 18-inch culverts, regrading slopes from a 2:1 toward a 4:1 profile, and adding a manhole at Ballpark Circle. Council said the city will not sign off on substandard work.
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Staff updated the council on remediation plans for Prairie Street following inspections that deemed current grading unacceptable. The contractor (work subcontracted through Gilco) plans to install 18-inch culverts, redo the grading and slopes, and insert a manhole at the end of Ballpark Circle as part of the remediation.
"They're gonna put in 18 inch culverts. They're gonna redo the grading and slopes. They are inserting a manhole at the end of Ballpark Circle," city staff (S1) told the council. Staff said current ditches are approximately 5 feet deep and that the slope will be reduced from the current 2:1 to a preferred 4:1 to meet engineering guidance; the city will not accept the road until inspections confirm compliance. Council directed staff to monitor the contractor's corrective work and provide finalized plans when complete.
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