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Dam grate blockage closed park entrance; city seeks geotechnical plan and has wildfire grant for defensible space at John Toppett Park
Summary
Staff reported a Dec. 30 blockage of the Lower Lake/John Toppett dam grate that caused roadway erosion and closure of the Ackerman entrance; geotechnical review is underway. Staff also said the city received a wildfire-risk grant to create a perimeter at John Toppett Park and will pursue right-of-way permits for homeowner defensible-space work.
Greg, a parks staff member, told commissioners that on Dec. 30 a grate at the Lower Lake/John Toppett dam was blocked — apparently by plastic — causing water to flow over the roadway and erode a roughly 3-foot-by-20-foot section of the road. Staff closed the Ackerman entrance to the park; a geotechnical engineer has visited the site and will provide an assessment and repair plan. Greg said the Oregon Water Resources Department, which oversees dams in the state, is coordinating and waiting on the city’s geotechnical plan.
Staff described monitoring the site daily and said the damaged roadway repair will likely be paid from the city’s capital fund, though final funding decisions are pending the engineer’s recommendations. Greg compared the damage to a prior slide that cost about $100,000 to repair and said the final cost is not yet known.
Separately, Greg said the city applied for and received a community wildfire-risk grant from the Oregon State Fire Marshal to create a defensible perimeter around John Toppett Park. Staff said efforts will likely proceed through a right-of-way use permit (probably a no-fee permit) and that staff will assist residents with debris removal and disposal once vegetation is cut back. A resident had already expressed interest in trimming foliage adjacent to the park to create defensible space.
Why it matters: the blocked grate produced immediate roadway damage and restricted park access; the wildfire-risk grant could fund proactive vegetation management to reduce fire risk at park edges.
Staff also reported a non-mandatory pre-bid meeting for a Mingus Park Community Hall stabilization project and said bids will open on the date listed in the public bid documents; staff said they will report results at an upcoming meeting.
