 The second contract, let on December 14, 1916, called for the improvement of the section of modern NY 168 within the village of Mohawk and what is now NY 28 between NY 168 and West Main Street (old NY 5S), a total distance of .Construction on the Mohawk–Paines Hollow segment cost about $127,000 (equivalent to $ in 2020), and required of pavement while the latter project cost $38,000 (equivalent to $ in 2020) to complete.The highway improved by the second project was added to the state highway system as State Highway 5631 (SH 5631) on May 3, 1918, and the Mohawk–Paines Hollow road was added as SH 5579 on May 31, 1919.