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Porter County staff warns of unusually heavy rain, rising drainage complaints and ongoing ravine repairs
Summary
Stormwater staff told the advisory board the county received roughly nine to 13 inches of rain in the previous 45 days, reported spikes in drainage complaints, and updated members on ravine restoration and a Rolling Meadows storm sewer replacement contract.
Porter County stormwater staff reported an unusually wet period that produced dozens of drainage complaints and exposed vulnerabilities in local storm infrastructure, the department said at the advisory board meeting.
Chelsea, the county stormwater staff member presenting the program update, summarized recent precipitation data: "on the high end, we have received over 13 inches of rain in the last 45 days." She said March rainfall across the county ranged from about 4.1 to 7.4 inches in places where normal March totals are closer to 2.44 inches, and that another two‑week period produced between 2.5 and 4 inches against a normal 1.66 inches for that interval.
Staff reported 37 drainage concerns Jan. 1–March 31: 15 were closed, 11 were forwarded to the highway department, and seven remain open or under active review. For the week April 1–8, staff received 19 drainage concerns: five were closed, two were in violation review, seven were forwarded to the highway department and five remained open or monitored.
Chelsea said the county’s infrastructure largely held up but that heavy downpours can expose preexisting problems, such as rusted corrugated metal pipe that can fail when flows increase. She updated members on two restoration projects: Sherwood Forest monitoring (staff will return with photos of performance) and the Bridalwood subdivision ravine restoration. At Bridalwood, contractors encountered unexpected groundwater intrusion and undermining; staff intend to add an engineered subgrade (geogrid and larger riprap revetment) and then proceed with step pools and additional stabilization.
Chelsea said the county awarded a contract for Rolling Meadows storm sewer replacement and expects a preconstruction meeting to occur soon. Board members were reminded that staff continue to monitor many open concerns and to prioritize projects based on severity and jurisdictional responsibility.
The presentation noted that one local river (identified in the record as the "Kinky Ki River") reached moderate flood stage on April 6. Chelsea emphasized that while the county avoided major flooding, these heavy, localized downpours increase maintenance workload and may reveal additional problems requiring capital work.
