Stangler Wetland, located in Lonsdale, Minnesota, is a private wetland area primarily designated for flood risk reduction along the Cannon River. Constructed in 2001 by the NRCS, this Earth-type dam stands at 15 feet tall and stretches 230 feet in length, with a storage capacity of 140 acre-feet. The wetland covers 13 acres and serves as a crucial water resource infrastructure in Rice County, Minnesota.

The dam at Stangler Wetland is regulated by the Minnesota Department of Natural Resources, with state jurisdiction and permitting in place to ensure its proper operation and maintenance. Despite being classified as having a low hazard potential, the condition assessment of the dam is rated as satisfactory, with inspection frequency set at every 8 years. The risk assessment for the wetland is moderate, highlighting its importance in managing water levels and mitigating flood risks in the area.

Stangler Wetland plays a vital role in protecting the surrounding community from potential flooding events, with its strategic location and design aimed at minimizing risks and ensuring water resource sustainability in the region. As a key asset in the flood risk reduction infrastructure, this wetland serves as a testament to effective water management practices and the collaborative efforts of both private and state agencies in safeguarding the environment and local communities from water-related hazards.