Andorra Springs Basin B is a privately owned earth dam located in Whitemarsh Township, Montgomery County, Pennsylvania. Regulated by the Pennsylvania Department of Environmental Protection, this dam serves the primary purpose of flood risk reduction along the TR Schuylkill River. With a dam height of 16 feet and a length of 1000 feet, it provides a storage capacity of 14 acre-feet and covers a drainage area of 0.31 square miles.

Despite being classified as having a high hazard potential, the dam is currently in fair condition according to the latest inspection in April 2020. While the exact year of completion is unknown, the structure is designated for flood control and stands ready to mitigate potential risks in the region. With its location along the Schuylkill River, Andorra Springs Basin B plays a crucial role in protecting surrounding communities from the impacts of flooding and ensuring the safety of residents in the area.

As water resource and climate enthusiasts, understanding the importance of maintaining and monitoring infrastructure like Andorra Springs Basin B is vital for sustainable water management and disaster preparedness. With its significant role in flood risk reduction and its proximity to the TR Schuylkill River, this dam serves as a key defense against potential flooding events in the region. By staying informed about the condition and maintenance of such structures, enthusiasts can contribute to the resilience of water resources and the protection of communities against the impacts of climate change.