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Council approves design task order for Broadmoor storm sewer after reports of sinkholes and backyard flooding
Summary
Mission City council approved a design task order not to exceed $52,326 for the Broadmoor Street storm sewer replacement after staff reported a failed corrugated metal pipe, sinkhole openings and localized backyard flooding. Staff said design could take a couple of months and construction is targeted for this summer, funded from the stormwater utility fund.
Mission City’s council voted to approve a task order to design replacement of a failing storm sewer on Broadmoor Street, after city staff described visible pipe failures and sinkhole formation along the corridor between 55th and 56th.
Public Works Superintendent Brent Morton told the council the pipe is a failed CMP (corrugated metal pipe) that has deteriorated over several years, noting inspectors and camera footage from 2023 show progressive rot and erosion. “It is definitely failed CMP pipe,” Morton said, adding that erosion has caused sinkholes and washing downstream. He recommended a design task order to evaluate replacement approaches and additional survey work.
Morton said the design consultant named in the discussion, Olsen, expects to complete design work in “a couple months” and that construction could occur this summer if the schedule holds. He gave a planning-level construction ballpark of roughly $250,000–$300,000 and described the task-order amount under consideration for design at $52,326. “If we can get this approved, Olson kinda thinks they can get it through design in a couple months, and we can hopefully get it constructed this summer,” Morton said.
City Administrator Laura Smith said the city’s updated stormwater program plan (2026–2030) and recent bond proceeds and debt-service assumptions leave the stormwater utility fund in a position to cover the design task order and the anticipated construction, though she noted some special-district stormwater fees remain delinquent. Smith told the council she had increased the emergency repair and maintenance line to cover the design and estimated construction and pointed to other projects in design, including Apollo Garden and a 61st and Hodges project.
Council members asked about causes and resident notification. Morton said recent development and heavy trucks did not appear to be the primary cause; rather, heavy rains reveal weak links in an aging system. He confirmed residents who contacted the city have been told staff will evaluate options and that the consultant will prepare a traffic-control plan for construction staging.
The council approved the task order on a roll call vote. The motion authorized a task order with Olsen for design of the Broadmoor Street storm sewer replacement project in an amount not to exceed $52,326, to be paid from the stormwater utility fund. The motion carried.
