Darien's Latest Flood Repair Damage Update

DARIEN, CT — In her biweekly newsletter, First Selectman Monica McNally included several status updates from the Department of Public Works on flood repair damage in town from last year's major storms: Elsa on July 9, 2021; Henri on Aug. 22, 2021; Ida on Sept. 2, 2021; and the unnamed storm on Sept. 23, 2021.

The following are updates from McNally's newsletter on several projects that are underway

Salt Box Lane Area

Models of the existing pipe network have been built and edited based on measurements taken in the field. [The town's] consultant utilized a network of rain gauges to determine a possible return period for events similar to Elsa and Ida. Potential improvements have been identified and statistical analysis is underway to determine storm frequencies. The consultant is also reviewing historic records to determine where there were wetlands or watercourses that may be affecting drainage characteristics now. A meeting to review the reports is expected later this month."

Bailey Avenue Area

Field measurements have been performed and a model has been made to replicate the flooding conditions. Improvements to the drainage systems are being considered, however, initial results seem to indicate that the railroad may be a barrier. Removal of this (if possible) would require further analysis of the downstream effects of water. This report will be completed and reviewed with the consultant following the Salt Box Lane report.

Tilley Pond/Grove Street Area

This study includes Brook Street and Grove Street. Rain gauge data is being expanded in this area and a video contractor is being used to document existing pipes. A model of this area is also built and is being tested. This report is in the final stage of determining initial findings and is expected from the consultant in the fall.