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Jonbar Ranch Dam, located in Dallas County, Iowa, was completed in 1957 and is owned and regulated by a private entity. The dam, designed by USDA NRCS, serves multiple purposes including fire protection and creating a stock or small fish pond. With a dam height of 25 feet and a storage capacity of 104 acre-feet, the structure is primarily made of earth and sits on a soil foundation along the TR-Johnson Creek.
Despite being classified as having a low hazard potential, the dam is subject to state regulation, inspection, and enforcement by the Iowa DNR. Its risk assessment is moderate, with no specific risk management measures listed. The dam's spillway is uncontrolled, and it has not been rated for its condition assessment. Overall, Jonbar Ranch Dam is a significant water resource structure in the area, providing essential functions for fire protection and local wildlife while being closely monitored for safety and regulatory compliance.
Water resource and climate enthusiasts may find Jonbar Ranch Dam an intriguing case study due to its unique design, multiple purposes, and the balance between its benefits and risks. The dam's location along the Raccoon River in Iowa, coupled with its low hazard potential and moderate risk assessment, offer insights into the complexities of managing water infrastructure in a changing climate. As a privately owned and state-regulated structure, Jonbar Ranch Dam exemplifies the interconnectedness between public and private entities in ensuring water security and safety in the region.
Year_Completed | 1957 |
Dam_Height | 25 |
River_Or_Stream | TR-JOHNSON CREEK |
Dam_Length | 500 |
Primary_Dam_Type | Earth |
Surface_Area | 8 |
Drainage_Area | 0.2 |
Nid_Storage | 104 |
Hazard_Potential | Low |
Foundations | Soil |
Nid_Height | 25 |