Be it enacted by the People of the state of Illinois represented in the General assembly; That the Springfield and Alton Turnpike road company incorporated by an act entitled “An act to incorporate the Springfield and Alton Turnpike road Company” approved March 1^st 1833. are hereby authorized and empowered to extend the road contemplated by said act, from Springfield in Sangamon County to Bloomington in MLean county. The said extended part to be in all respects subject to the provisions of the aforesaid act, and any and all acts subsequently made by way of amendment or supplement to the same.