08:10 AM EDT, 03/25/2026 (MT Newswires) -- Aecon Group ( AEGXF ) said Wednesday that the FlatironDragados-Aecon joint venture has finalized a US$691 million contract with the U.S. Army Corps of Engineers for the Howard A. Hanson Dam additional water storage fish passage facility project in Washington State.

The project involves the construction of a downstream dam facility that will consist of vertically stacked ports on the dam's upstream side, Aecon ( AEGXF ) said.

Aecon ( AEGXF ) said its share of the contract will be added to its construction segment backlog in the first quarter.

Aecon ( AEGXF ) owns a 40% stake in the joint venture while FlatironDragados owns the remaining 60%.

Completion of the collaborative development phase and the commencement of construction are expected in the second quarter, with anticipated completion in the third quarter of 2031, Aecon ( AEGXF ) said.