The firm beat rival bidding joint venture SITA Lend Lease to the job, which has £75m in PFI funding for construction of new waste facilities.
The a 25-year residual waste management contract is worth more than £750m and will see two new waste plants built in Rotherham.
Shanks will manage over 265,000 tonnes of residual municipal waste each year with most being treated at the site of a proposed mechanical biological treatment plant in the town.
Under the contract, Shanks will also build and operate an anaerobic digestion plant to produce sustainable energy from the organic material produced by the MBT process.
Construction of the MBT and AD plants, which are subject to planning permission being granted, is expected to begin in the Spring of 2013 with the facilities due to open in 2015.
