Coronet No.
Wind
Humidity
4 is a private dam located in Plant City, Florida, on the Alafia River. Built in 1930 for tailings storage, this earth dam stands at a height of 9 feet with a hydraulic height of 8 feet and a structural height of 10 feet. With a storage capacity of 1100 acre-feet and a surface area of 131 acres, Coronet No. 4 serves a crucial purpose in managing water resources in the region.
The dam has a controlled spillway type with a width of 3 feet and a maximum discharge capacity of 20 cubic feet per second. Its significant hazard potential and very high risk assessment rating highlight the importance of regular inspections and maintenance to ensure public safety and water resource stability. Although the condition assessment is currently listed as "Not Rated," ongoing regulatory oversight by the Florida Department of Environmental Protection ensures that Coronet No. 4 remains in compliance with state regulations.
Despite its age, Coronet No. 4 continues to play a vital role in water management and flood control for Hillsborough County. With a history dating back over 90 years, this dam stands as a testament to the engineering ingenuity of its time and the ongoing efforts to safeguard water resources and climate resilience in the region.
Year Completed |
1930 |
Dam Length |
8000 |
Dam Height |
9 |
River Or Stream |
ALAFIA RIVER (ENGLISH CREEK) |
Primary Dam Type |
Earth |
Surface Area |
131 |
Hydraulic Height |
8 |
Drainage Area |
0.47 |
Nid Storage |
1100 |
Structural Height |
10 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
10 |