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Mandan staff report Memorial Highway lanes open, Terra Valley lift station taken offline

Mandan Board of City Commissioners · July 21, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Public works staff told the commission Memorial Highway's east segment is nearing completion with all lanes open, the Terra Valley lift station has been decommissioned and several local road, sidewalk and reservoir projects are in final punch-list or mid-August wrap-up stages.

City public-works staff updated the Mandan Board of City Commissioners on multiple infrastructure projects during the July 21 meeting.

Riley reviewed work on Memorial Highway, saying the east 0.5 segment is nearing completion and "All lanes of the roadway are open, which is super exciting news." He said crews are finishing punch-list items, seating and landscaping and that a project walk-through and haul-road inspection will occur soon. On the west segment Riley said storm-sewer work near 3rd will require traffic control but "there'll be no impact to traffic on 3rd." Riley also described underground utility work near Riverwood RV and Faulkner's Market.

Riley said the old Terra Valley lift station has been decommissioned: "The old Terra Valley Lift Station is officially offline." He said crews are digging up the old lift-station vault, backfilling the gravity line and that the gravity line is now in service, removing that maintenance item for Public Works.

Riley briefed commissioners on 1st Street reconstruction (phase 1 wrapping up; phase 2 paving soon) and water and sewer work near Lewis and Clark Elementary reaching substantial completion with upcoming manhole rehabilitation and punch-list work. Project 3a (SID 241 near Red Trail Elementary) is finishing sidewalk extension and concrete work with an expected mid-August completion; Collins Reservoir is substantially complete with seeding, irrigation and lighting installed.

Riley closed by directing commissioners to the city's online project list and a project newsletter sign-up for more details. Commissioners asked no substantive follow-up questions during the presentation.

Why it matters: the updates affect local traffic patterns, school-area utility work and the schedule for several public-works projects that residents and businesses use daily. The city signaled minor, temporary traffic controls and internal inspection steps ahead of final acceptance.