भारतीय अंतर्देशीय जलमार्ग प्राधिकरण
Features
| Date of declaration | February, 1993 |
|---|---|
| NW-3 consists of | |
| West coast canal (Kottapuram - Kollam) | 168 km |
| Udyogmandal canal (Kochi Pathalam bridge) | 23 km |
| Champakara canal (Kochi - Ambalamugal) | 14 km |
| Total length | 205 km |
| Sea opening- 4 nos | Munambam, Kochi, Kayamkulam and Neendakara |
| Tidal influence | About 0.70 m to 1.00 m rise during high tide |
| Obstacles | Lock gates at Thanneermukkom, and Thrikunnapuzha |
| Narrow portions | Alappuzha Kollam stretch |