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Iowa Environmental Council and partners propose 4 Mile Creek restoration, outdoor classroom at North Polk property
Summary
Presenters from the Iowa Environmental Council, Polk County and partners outlined a stream-restoration and prairie project on North Polk Community School District property along 4 Mile Creek, highlighting secured grants, in-kind engineering and remaining funding needs for an outdoor learning shelter.
Representatives of the Iowa Environmental Council briefed the North Polk Community School District board on an on-campus natural infrastructure project intended to restore stream and prairie habitat along 4 Mile Creek and expand outdoor learning access for K–12 students.
The project would install stream-restoration features such as rock cross-veils and limestone entry points, repair eroded creek access and plant native prairie on the hillside adjacent to the district property to improve water quality, reduce erosion and create hands-on science learning space for district classes.
Colleen (Iowa Environmental Council representative) said the council is a coalition working statewide for “a just and healthy environment and a sustainable future for all Iowans,” and described how Iowa’s landscape transformation left “only 1.1% of our native prairie” and changed water flow and wetlands. She told the board natural infrastructure — wetlands, floodplain reconnection, oxbows and stream meanders — “slow the flow of the water and reduce the erosion” while filtering pollutants and replenishing groundwater.
Aaron (staff member) described the site’s educational value, saying the high school science department and DMACC environmental science classes already use the creek for outdoor lessons and that Central Elementary and the middle school are close enough for regular class visits. He noted teachers “have been using those [outdoor education] supplies for the last 5 years” but that access is limited by erosion and overgrowth at the commonly used entry point.
Funding and partnerships: presenters said Polk County has committed $20,000 and the Great Outdoors Foundation $20,000 toward stream restoration, with $5,000 earmarked for prairie restoration on the hillside. RDG Engineering has agreed to provide site engineering pro bono, and a private donor has offered to fund the prairie restoration; a larger outdoor learning shelter remains unfunded. Aaron said Colleen has already secured “close to $45,000 in grants” for the effort.
Board requests and next steps: board members asked for the presentation slides and a brief summary slide that details the educational impact — which classrooms and how many students would use the site — to aid future fundraising and decisions. Presenters asked the board and the community for construction contacts and potential donated labor for the unfunded shelter; RDG’s pro bono design work and an existing new bridge (installed by cross‑country coaches) were highlighted as project advantages.
No formal district action or vote was taken on the project during the meeting. Presenters and district staff said they will continue fundraising and coordination with Polk County, Polk Soil and Water Conservation District and other partners and will provide requested educational-impact materials to the board.
Less critical details: presenters noted existing invasive plants on parts of the site, the presence of picnic tables and a bridge used by students, and that Joe Boyles, the district head of grounds, would support upkeep. Board members and presenters discussed flood variability on 4 Mile Creek and said a topo survey and the engineer’s site work will determine appropriate elevations and locations for in‑stream structures.
The district’s presentation concluded with an invitation for questions and a commitment from staff to share slides and more detailed educational-impact estimates for donors and the board.
