| Cascades to Illzach | 4,079.36 mi (6,565.09 km) |
| Cascades to Ingre | 3,841.52 mi (6,182.32 km) |
| Cascades to Irigny | 4,034.05 mi (6,492.18 km) |
| Cascades to Isbergues | 3,798.94 mi (6,113.80 km) |
| Cascades to Issoire | 3,968.88 mi (6,387.29 km) |
| Cascades to Issoudun | 3,874.78 mi (6,235.85 km) |
| Cascades to Issy-les-Moulineaux | 3,836.84 mi (6,174.80 km) |
| Cascades to Istres | 4,106.80 mi (6,609.26 km) |
| Cascades to Ivry-sur-Seine | 3,841.68 mi (6,182.58 km) |
| Cascades to Jarville-la-Malgrange | 4,005.79 mi (6,446.70 km) |
| Cascades to Jeumont | 3,874.56 mi (6,235.50 km) |
| Cascades to Joigny | 3,906.96 mi (6,287.65 km) |
| Cascades to Joinville-le-Pont | 3,845.45 mi (6,188.66 km) |
| Cascades to Joue-les-Tours | 3,806.34 mi (6,125.71 km) |
| Cascades to Jouy-le-Moutier | 3,822.27 mi (6,151.35 km) |
