(a) General rule.— A township may acquire property by eminent domain, including entering upon, appropriating, taking, using and occupying private lands and property for any of the following public purposes:

1. (1) The laying out, opening, widening, extending, vacating, grading or changing the grades or lines of streets or highways.
2. (2) The construction of bridges and the piers and abutments for bridges.
3. (3) The construction of slopes, embankments and storm water sewers and storm water facilities, the changing of watercourses and the construction of sanitary sewer mains, drains or treatment works.
4. (4) The erection and extension of water systems, wharves and docks, public buildings, public works or land for a public-works-related function, municipal waste processing and disposal facilities, including municipal waste landfills, libraries and the establishment of parks, playgrounds and recreation places.
5. (5) For all other purposes authorized by this part.