Complex sentence: A P3 agreement was signed and construction of the next leg started in 2008-when completed in 2011, it will run from the Yellowhead west of 184 Street, to Manning Drive (Highway 15).
Split into simpler sentences: A P3 agreement was signed and construction of the next leg started in 2008. When completed in 2011, it will run from the Yellowhead west of 184 Street to Manning Drive (Highway 15).