11. Schuylkill Navigation, March 8, 1815, in Schuylkill, Berks, Montgomery, Chester and Philadelphia Counties. This began at Port Carbon on Schuylkill, and ran to Philadelphia, a distance of 108 miles.
12. Lackawanna Navigation, February 5, 1817, a part of the Delaware and Hudson Canal, from Honesdale on the Lackawaxen to the mouth of that stream, a distance of twenty miles.
13. Monongahela Navigation, March 24, 1817, in Fayette, Greene, Westmoreland, Washington and Allegheny Counties. From Johnstown on the Conemaugh, at the western base of the Allegheny down the Conemaugh, Kiskiminetas and Allegheny to Pittsburgh—distance, 105 miles.
14. Octoraro Navigation, March 29, 1819.
15. Conewago Canal, east side, March 29, 1814.
In the report of Canal Commissioners made in 1827 was this paragraph:
“In the latter end of May the location of a line from the mouth of the Juniata to Northumberland was commenced, beginning at Duncan Island, and extending up the west side to a point opposite Northumberland.” This canal was thirty-seven miles in length.
The North Branch began at Northumberland and extended to two miles below Wilkes-Barre, and later extended to New York State line.
The West Branch began at Northumberland and ran to Muncy Dam, a distance of twenty-six miles, but later was extended to Bald Eagle, where it united with the Erie Canal.
After extensive surveys made in 1824 and 1825, the Commonwealth entered, in the year 1826, into the actual construction of an extended system of internal improvements and continued the annual expenditure of large sums of money for canals and railroads for fifteen years, or until 1841.