Tim Lau Site 2 is a privately owned grade stabilization structure located in Indianola, Iowa along Squaw Creek. Constructed in 2016 by the USDA NRCS, this earth dam stands at a height of 35 feet and spans 473 feet in length, providing crucial flood control benefits to the surrounding area. With a storage capacity of 63 acre-feet and a drainage area of 0.15 square miles, this structure plays a vital role in managing water flow and reducing the risk of flooding in the region.

Managed by the Iowa DNR, Tim Lau Site 2 is categorized as having a low hazard potential and a moderate risk level. Despite not being condition-rated, the dam is inspected, permitted, and regulated by state authorities to ensure its structural integrity and functionality. The spillway, with a width of 12 feet, is uncontrolled, while the outlet gates are also uncontrolled. The structure's primary purpose of grade stabilization underscores its importance in maintaining the stability of the surrounding landscape and preventing erosion.

Situated within the Kansas City District, Tim Lau Site 2 serves as a testament to effective collaboration between private owners and government agencies in safeguarding water resources and mitigating the impacts of climate change. As water resource and climate enthusiasts, understanding the design, purpose, and regulatory oversight of such structures is crucial for promoting sustainable water management practices and resilience in the face of environmental challenges.