The commissioner is authorized and directed, to the full extent but only to the extent permitted by moneys, appropriations and allotments becoming available under sections 13a-239 to 13a-246, inclusive, and allotments becoming available under any other law, to construct a new state highway, which is made hereby a part of the state highway system and is hereinafter sometimes referred to as the “project”, as a two-lane facility from a point on the Governor John Davis Lodge Turnpike northerly of the toll station existing in Montville, prior to 1985, to a point on Connecticut Route 12 not more than two thousand feet south of Connecticut Route 27, including and over a new bridge, which is hereinafter sometimes referred to as the “bridge”, across the Thames River from a point northerly of the developed portion of Fort Shantok State Park in Montville to a point southerly of the Norwich Hospital in Preston.