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Matthew Brown is a privately owned earth dam located in Union, Iowa, along a tributary to the Thompson River. Constructed in 2018 by the USDA NRCS, this dam serves multiple purposes including grade stabilization, recreation, and water supply. With a height of 30 feet and a length of 325 feet, Matthew Brown has a storage capacity of 28 acre-feet and covers a surface area of 2.2 acres, benefiting from a low hazard potential and a moderate risk assessment rating.
Managed by the Natural Resources Conservation Service, Matthew Brown features an uncontrolled spillway with a width of 24 feet and a maximum discharge capacity of 177 cubic feet per second. Despite its low hazard potential and a condition assessment that is not rated, this dam is designed to withstand various environmental challenges while supporting the local ecosystem and providing recreational opportunities for the community. As a vital structure in the region, Matthew Brown plays a crucial role in managing water resources and adapting to climate changes in the area.
Year_Completed | 2018 |
Dam_Height | 30 |
River_Or_Stream | Trib to Thompson River |
Dam_Length | 325 |
Primary_Dam_Type | Earth |
Surface_Area | 2.2 |
Drainage_Area | 0.09 |
Nid_Storage | 28 |
Outlet_Gates | None |
Hazard_Potential | Low |
Foundations | Soil |
Nid_Height | 30 |
COTTONWOOD RIVER NEAR NEW ULM | 502cfs |
MINNESOTA RIVER AT MANKATO | 6230cfs |
LE SUEUR RIVER NEAR RAPIDAN | 1840cfs |
WATONWAN RIVER NEAR GARDEN CITY | 589cfs |
LITTLE COTTONWOOD RIVER NEAR COURTLAND | 116cfs |
HIGH ISLAND CREEK NEAR HENDERSON | 162cfs |
MINNESOTA RIVER AT NEW ULM | 2660cfs |