Division The June 6, 1862 flood proved to show a fatal flaw in White's grand dream. The Upper Grand contributed to its own demise in that the dams and locks necessary to allow the coal barges to travel on the river meant that huge pools of water sat at the ready. Once the heavy June rains began, and dams began to be breached, devastating tidal waves of flood water burst dam after dam causing a great flood and loss of life. John J. Leisenring Jr., then Superintendent of the LCN & Co. estimated that 200 people lost their lives from White Haven down to Lehighton. The state legislature stepped in and prohibited the LCN & Co. from rebuilding.<ref name=DEL&LHcanals/> Railroads Primary reference Summit Hill and Mauch Chunk Railroad In 1827, the Company in one massive well organized effort, completely built the of America's second railroad using the road bed of the wagon road built in 1818–19 in just a few months — a gravity railroad named the Mauch Chunk and Summit Hill Railroad (or similar name variants) using wooden sleepers on a gravel substrate (as did most more modern railways) — to bring coal from mines to river more efficiently.<ref name=PoorSH&MC> </ref> The work went quickly since the right-of-way surveyed by White (well before 1818's charter) ran along the virtually uniform gradient created by grading the original mule trail, work overseen by Hazard in 1818. The wagon road to become gravity railroad ran from what later became Summit Hill along the south side of Pisgah Ridge to Mount Pisgah to the canal's loading chute over above the canal banks, Room Run Railroad The Room Run or Rhume Run Railroad was a shortline coal road built by Josiah White from a ravine in the Nesquehoning Valley Non-railroad Companies During the winters ending in 1821–1823, the partners learned a lot about icing damage and canal construction to prevent heavy damages by sustaining them, but also learned some damages would be sustained each winter. The need for an injection of new cash to do such repairs in 1821 lead to the company reorganization into the Lehigh Coal & Navigation Company, which also bought out George Hauto's share and left White and Hazard with majority ownership; having injected most additional funding from their own pockets.<ref name=BHoCC/> In 1823 the upper four locks on the Lehigh Navigation from Lehigh Gap to Mauch Chunk were rebuilt