| Canals to River Ridge (Louisiana) | 4,936.02 mi (7,943.76 km) |
| Canals to Riverbank (California) | 5,925.52 mi (9,536.20 km) |
| Canals to Riverdale (Georgia) | 4,514.13 mi (7,264.80 km) |
| Canals to Riverdale (Illinois) | 4,380.68 mi (7,050.02 km) |
| Canals to Riverside (California) | 5,980.37 mi (9,624.48 km) |
| Canals to Riverside (Ohio) | 4,283.13 mi (6,893.03 km) |
| Canals to Riverton (Utah) | 5,449.39 mi (8,769.94 km) |
| Canals to Riverton (Wyoming) | 5,196.94 mi (8,363.66 km) |
| Canals to Riverview (Florida) | 4,621.44 mi (7,437.49 km) |
| Canals to Riverview (Michigan) | 4,162.61 mi (6,699.07 km) |
| Canals to Riviera Beach (Florida) | 4,546.19 mi (7,316.39 km) |
| Canals to Riviera Beach (Maryland) | 3,943.44 mi (6,346.35 km) |
| Canals to Roanoke (Virginia) | 4,168.63 mi (6,708.77 km) |
| Canals to Roanoke Rapids (North Carolina) | 4,083.32 mi (6,571.46 km) |
| Canals to Robbinsdale (Minnesota) | 4,509.14 mi (7,256.76 km) |
