Aecon Buildings awarded contract for redevelopment of the Rouge Valley Health Sy

Under the Ontario government's alternate financing and procurementprogram, Aecon and their financial advisor Stonebridge Financial Corporationhave secured financing from financial partners The Manufacturers LifeAssurance Company, The Canada Life Assurance Company, and Industrial AllianceInsurance & Financial Services Inc.

    The hospital's expansion and redevelopment plan will include:    -   An upgraded and expanded emergency department    -   Expanded laboratory, mental health and ambulatory care facilities    -   A new Complex Continuing Care Unit with capacity for 30 beds    -   The development of diagnostic imaging and cardiac diagnostic areas    

Financial close is expected in the coming weeks. Construction will beginfollowing financial close and is projected to be completed in August 2010.

"Health care infrastructure is a growing market in Canada, and is a keystrategic priority for Aecon Buildings," said Robert G. McDonald, PresidentAecon Buildings. "The Rouge Valley project is an exciting opportunity, and welook forward to working with the hospital and Infrastructure Ontario to meetthe growing demand for health care facilities."

Infrastructure Ontario is a Crown corporation dedicated to managing someof the province's larger and more complex infrastructure renewal projects -ensuring they are built on time and on budget.

Aecon Group Inc. is Canada's largest publicly traded construction andinfrastructure development company. Aecon and its subsidiaries provideservices to private and public sector clients throughout Canada andinternationally.

The information in this news release includes certain forward-lookingstatements. These statements are based upon assumptions that are subject tosignificant risks and uncertainties which are generally described in Section3.2 "Risk Factors" of Aecon's Annual Information Form available on SEDAR at. Although Aecon believes that the expectations reflected inforward-looking statements are reasonable, it can give no assurance that theexpectations of any forward-looking statements will prove to be correct.

For further information

Mitch Patten, Vice President, CorporateAffairs, Aecon Group Inc., (416)297-2615, ,