Gilbert Run Dam 1, also known as Trinity Church Dam, is located in Charles County, Maryland, near the city of Newport. Built in 1964 by the USDA NRCS, this earth dam stands at a height of 41 feet and stretches 1690 feet in length, with a storage capacity of 4840 acre-feet and a drainage area of 8.2 square miles. The dam serves the primary purpose of flood risk reduction along the Trinity Church Run, a tributary of the Potomac River.

Despite its significant hazard potential and poor condition assessment, Gilbert Run Dam 1 plays a critical role in managing water resources in the region. The dam is regulated by the Maryland Dam Safety agency, which conducts regular inspections to ensure its structural integrity and safety. With a spillway width of 130 feet and a maximum discharge capacity of 6100 cubic feet per second, the dam is equipped to handle excess water flow during periods of heavy rainfall.

While Gilbert Run Dam 1 may face some maintenance challenges, its importance in flood risk reduction and water resource management cannot be overstated. As a key component of the local government's infrastructure, this dam continues to play a vital role in protecting the surrounding communities from potential flooding events.