The earthen dam was constructed in 1964 by the Porcupine Reservoir Company, with a height of 165 feet (50 m) and a length of 665 feet (203 m) at its crest. It impounds the water of the East Fork of the Little Bear River, primarily for irrigation.
The reservoir it creates, Porcupine Reservoir, has a water surface of 190 acres (77 ha), a shoreline of about 4.2 miles (6.8 km), and a maximum capacity of 12,500 acre feet (15,400,000 m3), with an elevation of 5,381 feet (1,640 m). The lake is popular for fishing, boating, and camping, although there are no recreational facilities. Only primitive camping is available at the reservoir; most areas for camping are located below the dam in the canyon.
- U.S. Geological Survey Geographic Names Information System: Porcupine Dam
- "Porcupine Dam, northcentral Utah". findlakes.com. Retrieved 8 Jul 2016.
- "Porcupine Reservoir" (PDF). deq.utah.gov. Utah Department of Environmental Quality. Aug 2006. Retrieved 8 Jul 2016.