Arcosa Inc. shareholders voted Friday to approve their company's $8.5 billion sale to CRH, clearing the last major hurdle for one of 2026's largest infrastructure mergers. The all-cash deal pays Arcosa investors $150 a share, a 25% premium over the company's 60-day average stock price as of June 18, when the agreement was first announced, according to Arcosa's SEC filing.

Arcosa runs two main businesses: a construction materials arm operating 109 quarries and yards, nine asphalt plants and 19 terminals that together ship roughly 35 million tons of aggregate a year, and an Engineered Structures unit that makes steel and concrete infrastructure products for energy transmission, grid modernization and data-center power buildouts.

Betting on the Grid Buildout

CRH, already the largest building-materials supplier in North America, is positioning the acquisition around surging demand for electrical infrastructure driven by AI data centers and grid upgrades. CRH chief executive Jim Mintern said the deal puts the combined company "at the forefront of an immense growth opportunity" in U.S. energy infrastructure, per Yahoo Finance's coverage of the transaction. Arcosa president and CEO Antonio Carrillo said the sale "crystalizes the value" the company has built.

CRH expects to wring roughly $175 million in annual cost savings from the combination within three years of closing, and projects the deal will boost earnings, margins and cash flow immediately upon completion.

Both companies' boards unanimously backed the agreement before sending it to Arcosa shareholders. The transaction still needs customary regulatory sign-off but is expected to close in the first quarter of 2027.