The original hatchery produced about 35,000 pounds of cold water fish annually. The rainbow, brook, brown and cutthroat trout and kokanee produced at this hatchery were stocked in Uinta Basin waters, Strawberry Reservoir and elsewhere.

The Fish Hatchery Production Plan calls for improvements to the Whiterocks State Fish Hatchery to increase production of cold-water sportfish for Utah’s anglers. A final Environmental Assessment and Decision Notice and Finding of No Significant Impact were signed April 30, 2004 to partially reconstruct the hatchery. The Commission revised the Fish Hatchery Production Plan and provided additional funding in 2006 to complete reconstruction by building new raceways at the south end of the site. Annual production of the new facility is estimated to increase to over 142,000 pounds. This aspect of reconstruction was completed in 2007.

Limited funding precluded building covers over the new outdoor raceways (where most of the fish rearing occurs) as part of the hatchery reconstruction. Positive effects of raceway covers built at the Kamas and Fountain Green State fish hatcheries include greater protection of infrastructure from the elements, better fish health, increased protection from avian disease transmission, and reduced predation. In 2009, the American Recovery and Reinvestment Act provided funding to construct raceway covers and add soffits beneath the building's eaves. Site excavation began in October 2009. The project was completed in 2010.

In 2012, the reconstructed hatchery produced 132,123 pounds of cold-water fish.

The Central Utah Project and other reclamation projects created many reservoirs in Utah. These flatwater areas provide for a variety of water-related recreation opportunities including fishing. Most reservoir fisheries are heavily used and not able to sustain themselves through natural recruitment, requiring management programs dependent on stocking hatchery-reared fish. Fish stocking demands in Utah for reclamation projects have been met in the past through both State and Federal hatcheries. CUPCA identifies funding for planning and implementing improvements to existing hatcheries and/or the development of new fish hatcheries to increase production of warm-water and cold-water fish for areas affected by the Colorado River Storage Project in Utah.