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PARK UPDATE:

Thursday, July 29, 2021: Sandy well water at Eagle Island State Park has forced the shutdown of restrooms, drinking fountains and the water slide. While the park remains open, visitors are urged to bring their own drinking water. Portable restrooms have been installed.

Park officials said the shutdown protects the facility’s plumbing and slide machinery, which could be ruined by sand. A consultant has been brought in to examine the water supply well and to suggest potential remedies. There is currently no estimate as to when the water service will be restored.

Sand appeared in the water earlier this month and the problem has grown worse in recent days.

Eagle Island State Park was first purchased by the State in 1929. Prior to that, it was used for agricultural purposes, primarily as grazing land for cattle and hogs. Other agricultural crops have included grain, hay and various vegetable crops. The site was operated as a penitentiary farm until 1977. In 1983, the State developed the site as a park to include a water slide, picnic areas, restrooms, concessions, swimming areas and trails.

arial view of eagle island state park

Today, the 545-acre park is still predominantly rural in character. Located in the southwest corner of Idaho, it is bordered on the north and south by the Boise River with agricultural land to the east and west. Urban and suburban uses have also developed around the park in recent years with residential neighborhoods north and south across the two channels of the Boise River. The Idaho Department of Fish and Game operates a fish hatchery to the southwest of Eagle Island State Park.

The park is heavily used in the summers by visitors swimming in the lake and using the water slide, picnicking, playing disc golf, walking on the many trails, and engaging in other types of passive, informal recreation. There are also a number of scheduled events at the park, drawing large numbers of visitors to the site. Many groups use the east shelter for weddings, receptions, birthdays and other family events. The rest of the year, the park is currently used for fishing, hiking, and horseback riding.

History Timeline

1929 – State Board of Prisons purchases Eagle Island property for use as a prison honor farm.

1930 – Eagle Island Prison Farm begins operations with 40 trustees.  Dairy barns and milking parlor built.  Original bunkhouse and dining hall/kitchen is completed.

1949 – Dormitory built by prison labor.

1965 – Idaho State Legislature enacted enabling legislation creating the Idaho Department of Parks and Recreation (IDPR).  Slaughter house is built at Eagle Island Prison Farm.

1977 – Idaho Department of Corrections discontinues operation of Eagle Island Honor Farm and turns over the property to the Idaho Department of Lands.  Idaho Department of Lands Board votes to set aside Eagle Island property for development as a State Park.

1980 – IDPR Board approves Eagle Island State Park General Development Plan and hires first manager.

June 25, 1983 – Eagle Island State Park is dedicated.  Approximately 26 acres developed with waterslide, picnic areas, restrooms, concession building and swimming area.

Looking to the Future at Eagle Island State Park

Exciting changes will be taking place at Eagle Island State Park. Once construction begins following the park’s master plan, the layout of the park will change and recreation opportunities within the park will be expanded. Throughout each construction phase the park will continue to be accessible to the public, although the trail system will change with each phase.

Current Conditions

Contact the Park

Address: 165 S Eagle Island Pkwy
Eagle, ID 83616
Phone: (208) 939-0696
Hours of Operation: Day-use locations within state parks are open from 7 am to 10 pm, per Idaho state code 26.01.20 (5). Day-use hours may change based on park manager discretion.

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