Editing Chesapeake and Ohio Canal (section)

===Boat repairs===
{{multiple image
   | width     = 150
   | image1    = Lock 47 Historical C and O Canal.jpg
   | alt1      = Drydock
   | caption1  = Drydock for repairing boats at Lock 47 (Four Locks).
   | image2    = Lock_35_Drydock_on_C_and_O_Canal.jpg
   | alt2      = Drydock
   | caption2  = Abandoned drydock at Lock 35 (today). Note the concrete beams that the boat would rest upon. 
  }}

Boats carried [[oakum]] and chisels to patch leaks.<ref>[[#Kytle|Kytle]] p. 221</ref> There were also boat repair areas, for instance, beside Lock 35 and at Lock 47 (Four Locks), to repair boats. The boat would settle on raised beams (at lock 35, they were made of concrete), as the [[drydock]] was drained, and the men could make the necessary repairs,<ref>{{cite web|url=http://www.whilbr.org/itemdetail.aspx?idEntry=5772&dtPointer=8 |title=Western Maryland Historical Library |publisher=Whilbr |access-date=2016-08-11 |url-status=dead |archive-url=https://web.archive.org/web/20160918172518/http://www.whilbr.org/itemdetail.aspx?idEntry=5772&dtPointer=8 |archive-date=2016-09-18 }}</ref> using tin and tar.<ref>[[#hahn-towpath|Hahn, Towpath Guide]] p. 112</ref> Originally, the canal plans did not have provisions for drydocks or repairs of boats, but by 1838 there were frequent complaints about drifting rafts and wrecks obstructing navigation. The company made provisions for drydocks to help the situation.<ref name="Unrau p. 337"/> In the mid-1800s the Canal Company authorized at least 6 drydocks, documented at the following locations: Locks 45–46, Lock 47 (Four Locks), Lock 44 (Shepherdstown), above Lock 14 (near Carderock), Edwards Ferry (Lock 25), and in the rear of Lock 10 (Seven Locks).<ref>[[#Unrau|Unrau]] p. 360-361</ref>