| Subdivision | From | To | Length | Sidings | Control | Timetable |
|---|---|---|---|---|---|---|
| Dubuque | East Junction | Waterloo | 160.7 miles | 11 | CTC and double track | Dubuque |
| Cedar Rapids | Manchester | Cedar Rapids | 41.6 miles | 0 | TWC | Cedar Rapids |
| Osage | Mona Junction | Glenville | 93.9 miles | 4 | TWC | Osage |
| Waterloo | Waterloo | Tara | 105.4 miles | 9 | CTC | Waterloo |
| Omaha | Tara | Council Bluffs | 130.2 miles | 5 | TWC and CTC | Omaha |
| Cherokee | Tara | Sioux City | 128.6 miles | 4 | TWC | Cherokee |
| Ida Grove | Ida | Ida Grove | 24.5 miles | 0 | TWC | Ida Grove |