The job includes repairing suspended concrete slabs and asphalt within the garage as part of the facility's normal maintenance schedule, according to Doug Robertson, the city's manager of parking operations maintenance and development.
Nick Sala, president of Alti Construction, said his team will be repairing deteriorated concrete, supplying and installing new expansion joints and drains, and applying a waterproof coating to protect the repaired concrete from further deterioration.
Construction will take place between May 29 and August 31, with the final phases to be completed between the same period in 2013.
Each phase will result in a temporary reduction of approximately 250 of the 850 parking spaces within the garage off Laurier Avenue West.
Ottawa-based Alti Construction was founded in 1996 and specializes in waterproofing as well as restoration and rehabilitation. Its 50 employees have undertaken other local garage repair projects including at the National Arts Centre, World Exchange Plaza, St. Laurent Shopping Centre and Ottawa International Airport.
The municipality expects to collect nearly $15.69 million in user fees through its citywide parking operations this year, according to budget documents.