Upper Long Lake Dam
May 5, 2024
Upper Long Lake Dam, located in Millville, Michigan, is a state-owned earth dam on the Abbott Drain. Built in 1992, this dam stands at a height of 7 feet with a hydraulic height of 5.3 feet, serving as a vital structure for water resource management in the region. With a normal storage capacity of 300 acre-feet and a maximum discharge of 310 cubic feet per second, the dam plays a crucial role in regulating water flow and preventing flooding in the area.
Despite its low hazard potential and satisfactory condition assessment, Upper Long Lake Dam is subject to periodic inspections every five years to ensure its structural integrity and operational efficiency. The dam's spillway, with a width of 26 feet, is uncontrolled, allowing for the safe release of excess water during peak flow periods. With a moderate risk assessment rating of 3, measures for risk management and emergency preparedness are continuously evaluated to mitigate any potential threats to the dam and surrounding communities.
Upper Long Lake Dam, nestled in the scenic landscape of Lapeer County, Michigan, stands as a testament to the importance of sustainable water resource management and climate resilience. As a key component of the region's infrastructure, this dam serves not only as a barrier against flooding but also as a symbol of the ongoing efforts to balance water conservation with environmental protection. Its role in safeguarding the local ecosystem and supporting the community's water needs underscores the interconnectedness of water resources and climate dynamics in shaping our shared future.
| Year_Completed | 1992 |
| Dam_Height | 7 |
| River_Or_Stream | Abbott Drain |
| Dam_Length | 660 |
| Primary_Dam_Type | Earth |
| Surface_Area | 215 |
| Hydraulic_Height | 5.3 |
| Drainage_Area | 2.9 |
| Nid_Storage | 1100 |
| Structural_Height | 7 |
| Hazard_Potential | Low |
| Nid_Height | 7 |
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