Chesapeake and Ohio Canal

The exact dimensions of the largest boat that can travel on the waterway are not known. The maximum headroom is not known. The maximum draught is not known.
Notable features of the waterway include Paw Paw Tunnel
lots of stuff on locks, bridges etc https://en.wikipedia.org/wiki/Chesapeake_and_Ohio_Canal Good for builing up the route.
This waterway is excluded by default from route planning with the following explanation: "closed"
Guard Lock No 8 | |||
Cumberland Basin, Maryland Terminus of the Chesapeake and Ohio Canal |
0.01 miles | 0 locks | |
Evitts Creek Aqueduct | 4.10 miles | 0 locks | |
North Branch 3 Lock No 75 | 9.41 miles | 0 locks | |
North Branch 2 Lock No 74 | 9.57 miles | 1 lock | |
North Branch 1 Lock No 73 | 9.69 miles | 2 locks | |
The Narrows Lock No 72 | 10.83 miles | 3 locks | |
Oldtown Lock No 71 | 18.55 miles | 4 locks | |
Oldtown Lock No 70 | 18.88 miles | 5 locks | |
Twigg's Lock No 69 | 19.14 miles | 6 locks | |
Crabtree's Lock No 68 | 20.86 miles | 7 locks | |
Town Creek Aqueduct | 23.50 miles | 8 locks | |
Darbey's Lock No 67 | 24.17 miles | 8 locks | |
Paw Paw Tunnel Upstream Portal The Paw Paw Tunnel is 1039 yards long so don't move this portal without moving the other. |
30.44 miles | 9 locks | |
Paw Paw Tunnel Downstream Portal The Paw Paw Tunnel is 1039 yards long so don't move this portal without moving the other. |
31.02 miles | 9 locks | |
Lock No 66 (C&O) | 31.54 miles | 9 locks | |
Lock No 64 2⁄3 (C&O) | 31.60 miles | 10 locks | |
Lock No 63 1⁄3 (C&O) | 31.81 miles | 11 locks | |
Lock No 62 (C&O) | 32.11 miles | 12 locks | |
Lock No 61 (C&O) | 33.20 miles | 13 locks | |
Stickpile Hill Lock No 60 | 36.40 miles | 14 locks | |
Lock No 59 (C&O) | 39.10 miles | 15 locks | |
Lock No 58 (C&O) | 40.77 miles | 16 locks | |
Fifteen Mile Creek Aqueduct | 41.91 miles | 17 locks | |
Indigo Neck Lock No 57 | 43.68 miles | 17 locks | |
Sideling Hill Creek Aqueduct | 46.51 miles | 18 locks | |
Sideling Lock No 56 | 46.87 miles | 18 locks | |
Long Hollow Lock No 55 | 49.15 miles | 19 locks | |
Guard lock No 6 | 49.16 miles | 20 locks | |
Capacon Lock No 54 | 49.37 miles | 20 locks | |
Irishman's Lock No 53 | 53.46 miles | 21 locks | |
Tonoloway Creek Aqueduct | 59.21 miles | 22 locks | |
Hancock 2 Lock No 52 | 59.25 miles | 22 locks | |
Hancock 1 Lock No 51 | 59.53 miles | 23 locks | |
Little Pool (upper end) | 61.15 miles | 24 locks | |
Lttle Pool Stop Gate | 61.39 miles | 24 locks | |
Little Pool (lower end) | 62.28 miles | 24 locks | |
Licking Creek Aqueduct | 66.22 miles | 24 locks | |
Western Maryland Railway Bridge | 68.55 miles | 24 locks | |
Big Pool Ends | 68.62 miles | 24 locks | |
Big Pool Begins | 70.33 miles | 24 locks | |
Fort Frederick Stop Gate | 70.39 miles | 24 locks | |
Four Locks 4 Lock No 50 | 73.67 miles | 24 locks | |
Four Locks 3 Lock No 49 | 73.75 miles | 25 locks | |
Four Locks 2 Lock No 48 | 73.83 miles | 26 locks | |
Four Locks 1 Lock No 47 | 73.90 miles | 27 locks | |
Two Locks 2 Lock No 46 | 75.04 miles | 28 locks | |
Two Locks 1 Lock No 45 Canal entered the river at this point |
75.18 miles | 29 locks | |
Guard Lock No 5 Navigation entered the river at this point |
75.79 miles | 30 locks | |
Conococheague Creek Aqueduct | 83.20 miles | 30 locks | |
Cushwa Basin | 83.27 miles | 30 locks | |
West Potomac Bridge | 83.33 miles | 30 locks | |
Railroad Lift Bridge (Western Maryland Railway) | 83.35 miles | 30 locks | |
Salisbury Street Bridge | 83.39 miles | 30 locks | |
Williams Port Lock No 44 | 83.76 miles | 30 locks | |
Potomac River Bridge | 84.48 miles | 31 locks | |
Lock No 43 (C&O) | 88.28 miles | 31 locks | |
Lock No 42 (C&O) | 92.28 miles | 32 locks | |
Lock No 41 (C&O) Navigation re-entered the canal from the river at this point |
92.46 miles | 33 locks | |
Guard Lock No 4 The Canal entered the river here due to the steep cliffs along the river edge. |
95.97 miles | 34 locks | |
Stop Gate (Dam No 4) | 97.25 miles | 34 locks | |
Lock No 40 (C&O) | 102.58 miles | 34 locks | |
One Mile Lock No 39 | 108.26 miles | 35 locks | |
Shepherdstown Lock No 38 | 109.40 miles | 36 locks | |
Antietam Creek Aqueduct | 112.80 miles | 37 locks | |
Mountain Lock No 37 | 115.26 miles | 37 locks | |
Pleasantville Lock No 36 | 118.95 miles | 38 locks | |
Lock No 35 (C&O) | 119.06 miles | 39 locks | |
Goodheart's Lock No 34 | 119.82 miles | 40 locks | |
Harpers Ferry Lock No 33 | 120.74 miles | 41 locks | |
B&O Railway Bridge | 120.77 miles | 42 locks | |
Winchester & Potomac Railroad Bridge | 120.79 miles | 42 locks | |
Shenandoah River Lock Junction | 120.91 miles | 42 locks | |
Sandy Hook Lock No 32 | 121.25 miles | 42 locks | |
Weverton Lock No 31 | 123.44 miles | 43 locks | |
Brunswick Lock No 30 | 126.60 miles | 44 locks | |
Catoctin Aqueduct | 130.11 miles | 45 locks | |
Lander Lock No 29 | 130.81 miles | 45 locks | |
Fulton's Lock No 28 | 132.74 miles | 46 locks | |
Monocacy Aqueduct | 139.63 miles | 47 locks | |
Spink's Ferry Lock No 27 | 140.31 miles | 47 locks | |
Wood's Lock No 26 | 142.44 miles | 48 locks | |
Broad Run Trunk Aqueduct | 150.49 miles | 49 locks | |
Edward's Ferry Lock No 25 | 151.67 miles | 49 locks | |
Goose Creek River Lock junction Goose Creek River Lock allowed traffic from the Goose Creek (on the other side of the river) to enter and exit the canal |
151.90 miles | 50 locks | |
Seneca Aqueduct | 160.18 miles | 50 locks | |
Riley's Lock No 24 | 160.21 miles | 50 locks | |
Violette's Lock No 23 | 160.91 miles | 51 locks | |
Inlet Lock No 2 (Seneca Feeder) | 160.94 miles | 52 locks | |
Pennyfield Lock No 22 | 163.57 miles | 52 locks | |
Swain's Lock No 21 | 166.76 miles | 53 locks | |
Six Locks 6 Lock No 20 | 169.29 miles | 54 locks | |
Six Locks 5 Lock No 19 | 169.41 miles | 55 locks | |
Six Locks 4 Lock No 18 | 169.48 miles | 56 locks | |
Six Locks 3 Lock No 17 | 169.59 miles | 57 locks | |
Stop Gate No 1 | 169.86 miles | 58 locks | |
Six Locks 2 Lock No 16 | 169.96 miles | 58 locks | |
Six Locks 1 Lock No 15 | 170.17 miles | 59 locks | |
Widewater | 170.83 miles | 60 locks | |
Forrestal Road Bridge | 173.31 miles | 60 locks | |
Seven Locks 7 Lock No 14 | 174.36 miles | 60 locks | |
Seven Locks 6 Lock No 13 | 174.44 miles | 61 locks | |
American Legion Memorial Bridge | 174.46 miles | 62 locks | |
Seven Locks 5 Lock No 12 | 174.54 miles | 62 locks | |
Seven Locks 4 Lock No 11 | 174.87 miles | 63 locks | |
Seven Locks 3 Lock No 10 | 175.06 miles | 64 locks | |
Seven Locks 2 Lock No 9 | 175.16 miles | 65 locks | |
Seven Locks 1 Lock No 8 | 175.52 miles | 66 locks | |
Cabin John Bridge | 176.27 miles | 67 locks | |
Cabin John Lock No 7 | 176.95 miles | 67 locks | |
Sycamore Island Bridge | 177.58 miles | 68 locks | |
Magazine Lock No 6 | 178.68 miles | 68 locks | |
Brookmont Lock No 5 | 179.06 miles | 69 locks | |
Inlet Gate No 1 Junction | 179.10 miles | 70 locks | |
Chain Bridge (Chesapeake and Ohio) | 179.97 miles | 70 locks | |
Arizona Avenue Railway Bridge | 180.47 miles | 70 locks | |
Fletcher's Boat House | 180.97 miles | 70 locks | |
Whitehursts Freeway Bridge | 183.29 miles | 70 locks | |
Francis Scott Key Bridge | 183.37 miles | 70 locks | |
Frederick St Bridge | 183.43 miles | 70 locks | |
Market St Bridge | 183.53 miles | 70 locks | |
Potomac Street Bridge | 183.59 miles | 70 locks | |
High St Bridge | 183.72 miles | 70 locks | |
Congress St Bridge | 183.81 miles | 70 locks | |
Jefferson Street Lock No 4 | 183.86 miles | 70 locks | |
Washington Street Lock No 3 | 183.91 miles | 71 locks | |
Green Street Lock No 2 | 183.97 miles | 72 locks | |
Rock Creek Lock No 1 | 184.02 miles | 73 locks | |
Tidewater Lock, Lock No 0 | 184.41 miles | 74 locks | |
Rock Creek Junction of the Potomac River with Rock Creek |
184.51 miles | 75 locks |
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Wikipedia has a page about Chesapeake and Ohio Canal
The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the "Grand Old Ditch," operated from 1831 until 1924 along the Potomac River between Washington, D.C., and Cumberland, Maryland. It replaced the Potomac Canal, which shut down completely in 1828, and could operate during months in which the water level was too low for the former canal. The canal's principal cargo was coal from the Allegheny Mountains.
Construction on the 184.5-mile (296.9 km) canal began in 1828 and ended in 1850 with the completion of a 50-mile (80 km) stretch to Cumberland, although the Baltimore & Ohio Railroad had already reached Cumberland in 1842. Rising and falling over an elevation change of 605 feet (184 meters), it required the construction of 74 canal locks, 11 aqueducts to cross major streams, more than 240 culverts to cross smaller streams, and the 3,118 ft (950 m) Paw Paw Tunnel. A planned section to the Ohio River at Pittsburgh was never built.
The canalway is now maintained as the Chesapeake and Ohio Canal National Historical Park, with a trail that follows the old towpath.