North Nam Ha Pumping Station Project

Pump room of Coc Thanh pumping station

Major technical parameters:

Work grade: I.

6large electric pumping stations including Coc Thanh, Co Dam, Huu Bi, Nhu Trac, Nham Trang, Vinh Tri with 35 OP6-87, OP6-145 pumps, capacity of each pump is from 11,000 m³/h - 32,000 m³/h.

The project results:

Total cultivation area: 63,366 ha, increasing in paddy equivalent production from145,700 ton (in 1965) to 302,476 ton (in 1990). Average food per capita is increased from 150 kg to 400 kg.

Scale of the project items:

The project basin is the largest low-lying delta belonging to Ha Nam and Nam Dinh provinces with total area of85,326 ha surrounded by Red river in the northeast, Day river in the west and Dao river in the south.

Topography of the basin is complicated with alternating high-low elevation, many hollow areas, interlaced ponds, lakes, rivers and streams.

The project basin characteristic is the typical one of low-lying area in the Northern delta.

Out of 6 pumping stations of the project, there are 5 irrigation pumping stations and 1 drainage pumping station.

The canal system consists of 18 irrigation canals with length of 133 km, 18 drainage area with length of 173 km, 3219 secondary and tertiary irrigation and drainage canals with total length of 3585 km.

On the canals, there are 12,847 related structures including intakes, culverts, regulators, locks, siphons, etc.