Homer Gap No 2, also known as Homer Gap Reservoir, is a vital water supply structure located in Blair County, Pennsylvania. Managed by the local government, this earth dam was completed in 1913 with a height of 29 feet and a length of 800 feet. The reservoir has a storage capacity of 99 acre-feet, serving the community with a normal storage of 68 acre-feet and covering a surface area of 6 acres.

With the primary purpose of water supply, Homer Gap No 2 is regulated and inspected by the Pennsylvania Department of Environmental Protection. Despite being classified as having a high hazard potential, the dam is rated in fair condition as of the last inspection in June 2020. The structure plays a crucial role in managing water resources for Altoona City and surrounding areas, highlighting the importance of maintaining and monitoring its integrity to ensure water security in the region.