Department of Conservation and Natural Resources

Explore   > Where to Go   > What to Do Conserve Learn
Do Business Apply for Grants
Discover DCNR

DCNR resource

Agency Spotlight: Allegheny Islands State Park
Accessible only by boat, the 50-acre Allegheny Islands State Park consists of two alluvial islands and seven shoals in the Allegheny River. The park is heavily covered in vegetation and remains undeveloped. Some of the few islands left in a natural state, the islands are homes to many animals and plants and frequently flood. The 14-acre upper island (eastern) is opposite the mouth of Black Run and east of C.W. Bill Young Lock and Dam #3. The 34-acre lower island (western) is west of the lock between the mouths of Falling Springs Run and Black Run.

Boat access is beach landing only. There are no docks or launches. The park is along the Three Rivers Water Trail, a recreational waterway along the three rivers developed by Friends of the Waterfront The water trail promotes access points, day use and camping sites for the boating public.

The Allegheny River provides year-round fishing opportunities. The fast currents created below the lock and dam at the eastern end of the lower island attracts both forage and game fish including small-mouthed bass, rock bass, walleye, sauger and freshwater drum.

All of Allegheny Islands State Park is open to hunting, trapping and the training of dogs during established seasons. Waterfowl is the common game species in the park.

For those interested in group tenting, qualified adult and youth groups may camp on the islands with written permission from the Department of Conservation and Natural Resources. The park is undeveloped and there are no facilities on the park–please follow Leave No Trace Principles. Allegheny Islands State Park is administered from Point State Park in Pittsburgh, Pennsylvania.

There are no developed trails, however several footpaths exist.

The islands that became Allegheny Islands State Park were once one island that was first purchased in 1788 by Samuel Hulings. The Hulings were prominent keelboatman of the region and settled in several areas along the Allegheny River. The island came to be called Hulings Island or Lanes Island.

By 1864, boatmen were using the river islands for navigation and referred to them by their distance from the Point in downtown Pittsburgh. Hulings Island became 14-mile Island.

In 1932, to facilitate the passage of larger vessels, the U.S. Army Corps of Engineers constructed the Allegheny River Lock and Dam #3 that split 14-mile Island in two. Now known as the C.W. Bill Young Lock and Dam #3, the still functioning lock and dam are on the National Register of Historic Places.

The McDonough Corporation purchased 14-mile Island to mine it for sand and gravel for building and road construction projects, but the deposits proved to be too poor of quality and the islands were left in their natural state.

The McDonough Corporation donated 14-mile Island (both upper and lower) to the Western Pennsylvania Conservancy in the early 1970s. The Commonwealth of Pennsylvania purchased the islands in 1974 and established Allegheny Islands State Park on December 31, 1980. Originally five islands in the Allegheny River were to be part of a concept plan called “Allegheny River Edge Park,” including 14-mile Island, 12-mile Island, 9-mile Island, Sycamore Island, and Herrs Island. The acquisition of 12-mile Island failed due to existing lease camps and erosion problems. Acquisition plans for the remaining islands were abandoned and only 14-mile Island was ever purchased.

Two bridges cross the Allegheny River on the lower island.

The Bessemer and Lake Erie Railroad was established in 1900 by Andrew Carnegie to haul steel products from Conneaut, Ohio to the steel mills in Pittsburgh. The railroad was then sold to the U.S. Steel Corporation in 1901. The Bessemer and Lake Erie Railroad Bridge was built in 1918 by the American Bridge Company with a total length of 2,327 feet and 160 feet above river level.

The original Allegheny River Bridge was opened in 1951 to extend the Pennsylvania Turnpike (I-76) over the Allegheny River. The turnpike bridge was rebuilt in 2010 with a total length of 2,350 feet and 120 feet above river level.

For more information, visit here

Back to resource Home Page home page

September 9, 2015

Back to resource Home Page home page

Agency Spotlight

Allegheny Islands State Park

Allegheny Islands State Park

This park is accessible only by boat.

Please enter your email address below to receive resource:
Email Address*

Would you like to send this email to a friend?
Send To A Friend

DCNR Home | Contact DCNR | Privacy Policy | Security Policy | PA Home