| Bridge Name: | Thondamannar Bridge |
| Native Name: | தொண்டைமானாறு பாலம் |
| Native Name Lang: | தமிழ் |
| Carries: | Motor vehicles and pedestrians on the AB21 Highway in Northern Province, Sri Lanka |
| Crosses: | Vadamarachchi Lagoon |
| Locale: | Valvettithurai, Jaffna District |
| Maint: | Road Development Authority |
| Begin: | 1947 |
| Complete: | 1953 |
Thondamannar Bridge is a road and pedestrian bridge on the Jaffna - Point Pedro highway across the Vadamarachchi Lagoon near the Valvettithurai town of the Northern Province, Sri Lanka in Sri Lanka. It was built in 1953[1] and destroyed in 1987, and rebuilt afterwards in 2004.
The Thondamannar Bridge was primarily used as a barrage since the beginning of its construction period to prevent sea water entering the Vadamarachchi Lagoon that serves as a primary water source for several villages in the neighborhood.
The Barrage was destroyed in 1987 when it came under fire from the Sri Lankan Army.[2]
The sluice gates before its destruction played a dual role not only preventing seawater entering into the villages but also allowing the floodwater flowing from the land-side into the sea during rainy season.[2]
The bridge along with the barrage was rebuilt by the Department of Irrigation in 2004 and now serves the Jaffna - Point Pedro highway, a key link in the Jaffna District and the Northern Province.[2] [3]