Steadying ‘The Rock’: Tutor Perini wins work to stabilise former Alcatraz prison

Tutor Perini has won a deal worth nearly $50 million to fix deterioration and structural deficiences in the main prison building on Alcatraz Island, off the cost of California near the city of San Fransisco, USA.

Alcratraz Island (Image: Adobe Stock) Alcatraz Island in San Fransisco Bay near California, US. The isle is the site of the former Alcatraz Federal Penitentiary. (Image: Adobe Stock)

Alcatraz was once the location of a federal prison where the US’ most dangerous criminals were housed, but now it serves as a US National Park and the main prison building has become a tourist attraction.

Tutor Perini said its Perini Management Services subsidiary has signed a $48.6 million contract to with the National Park Service for the Alcatraz Island Historic Structures Stabilization and Rehabilitation Project.

The company will abate hazardous materials in the exterior walls and interior construction areas, repair concrete spalls, replace deteriorated steel reinforcement, strengthen unreinforced concrete foundation walls, repair and stabilise exterior windows, and install storm windows.

“The project will provide a safe facility for the 1.4 million annual visitors and staff by increasing the building’s ability to resist seismic forces and resolving aging and weather-related impacts to the exterior walls,” said Tutor Perini.

Construction is expected to begin this month with substantial completion anticipated in summer 2027.


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Andy Brown Editor, Editorial, UK - Wadhurst Tel: +44 (0) 1892 786224 E-mail: [email protected]
Neil Gerrard Senior Editor, Editorial, UK - Wadhurst Tel: +44 (0) 7355 092 771 E-mail: [email protected]
Catrin Jones Deputy Editor, Editorial, UK – Wadhurst Tel: +44 (0) 791 2298 133 E-mail: [email protected]
Eleanor Shefford Brand Manager Tel: +44 (0) 1892 786 236 E-mail: [email protected]