Private pond spillway improvements at 8451 South 9th Street
Summary
A private pond dam built without permits overtops repeatedly and sits on top of the city's main 60-inch sanitary sewer line — the pipe carrying roughly 90 percent of flow to the Lynn Lane plant. The city won't pay to build a private spillway, but may cost-share riprap to protect its manhole.
At a glance
- Total mentions
- 3
- Last 30 days
- 2
Discussed at 1 meeting in the last 60 days; most recently Oct 26, 2026.
Impact analysis
The proposed weir was estimated at about $81,000; the city might share only riprap costs to protect its sewer infrastructure.
The property owner gets relief from repeated flooding, and the whole city benefits from protecting its main sewer trunk.
The owner keeps losing gravel, furniture, and shoreline to flooding while the funding question stays unresolved.
Mentions & discussions (2)
Drainage Advisory Committee - Oct 26, 2026
A private pond dam built without permits overtops repeatedly and sits on top of the city's main 60-inch sanitary sewer line — the pipe carrying roughly 90 percent of flow to the Lynn Lane plant. The city won't pay to build a private spillway, but may cost-share riprap to protect its manhole.
Drainage Advisory Committee - Apr 27, 2026
Heavy rains overtop the 2008 weir at the Boy Scout camp's pond, eroding both sides and threatening the New Orleans Street culvert and trunk sewer. $70,000 is recommended for a mitigation design, including upstream land modifications to the north.
Related development
Spillway improvements, 8451 South 9th Street pond
Protecting the manhole and dam guards the city's main sewer trunk, but the committee stopped short of committing taxpayer dollars to a private dam built without permits.
Boy Scout pond outlet structure mitigation design (Case No. 26-009)
Would reduce erosion at the camp and protect the New Orleans Street culvert carrying the Wagoner County trunk sewer.
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