Granite Joint Venture Awarded $324.8 Million Big Creek Tunnel Project in Ohio

Granite Joint Venture Awarded $324.8 Million Big Creek Tunnel Project in Ohio

Granite (NYSE:GVA) announced today that the Granite-Super Joint Venture has been awarded a contract by the Northeast Ohio Regional Sewer District (NEORSD) for the Big Creek Tunnel (BCT) project in Cleveland, Ohio. The contract, a joint venture between Granite and Super Excavators, is valued at approximately $324.8 million and will be included in third quarter CAP.

The BCT is part of Project Clean Lake, a $3 billion, 24-year program that NEORSD began in 2011 to improve water quality in the region. It is the last of seven large-diameter combined sewer overflow storage tunnels constructed under the program. Granite’s scope of work includes construction of 22,300 linear feet of 20-foot-diameter tunnel and 3,115 linear feet of ancillary tunnels, including adits, an overflow tunnel, a connecting tunnel, and a dewatering tunnel. Major structures include multiple shafts, diversion structures, gate and screening structures, gate control vaults, consolidation sewers, and an overflow box culvert, along with associated sitework, restoration, and utilities. When complete, this project will eliminate 550 million gallons of combined sewer releases annually.

“The scale and complexity of this project align directly with Granite’s strengths in large-diameter tunneling and shaft construction,” said Granite Tunnel Division VP Jim Nickerson. “This is a major wastewater infrastructure project, and it will strengthen system performance and protect local waterways across Northeast Ohio.”

Construction is scheduled to begin in fall 2026 and is expected to be completed in winter 2030.

About Granite

Granite is America’s Infrastructure Company™. Incorporated since 1922, Granite (NYSE:GVA) is one of the largest diversified construction and construction materials companies in the United States as well as a full-suite civil construction provider. Granite’s Code of Conduct and strong Core Values guide the Company and its employees to uphold the highest ethical standards. Granite is an industry leader in safety and an award-winning firm in quality and sustainability. For more information, visit the Granite website, graniteconstruction.com, and connect with Granite on LinkedIn, X, Facebook, and Instagram.

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Erin Kuhlman 831-768-4111

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Wenjun Xu - 831-761-7861

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