Fengman Dam
The Fengman Dam is a concrete gravity dam 20 km (12 mi) from Jilin City on the Second Songhua River in Jilin Province, China. The main purposes of the dam are hydroelectric power generation and flood control. Construction of the dam began in 1937 and was complete in 1953. The dam is owned and operated by Northeast China Grid Company Limited.
| Fengman Dam | |
|---|---|
Location of Fengman Dam in China | |
| Country | China |
| Location | Jilin City, Jilin Province |
| Coordinates | 43°43′10″N 126°41′19″E |
| Status | In use |
| Construction began | 1937 |
| Opening date | 1953 |
| Demolition date | 2019 |
| Owner(s) | Northeast China Grid Company Limited |
| Dam and spillways | |
| Type of dam | Gravity |
| Impounds | Second Songhua River |
| Height | 91 m (299 ft) |
| Length | 1,080 m (3,543 ft) |
| Width (crest) | 13.5 m (44 ft) |
| Spillway type | 11 floodgates, 1 discharge tunnel |
| Spillway capacity | Gates:9,240 m3/s (326,308 cu ft/s) Tunnel:1,186 m3/s (41,883 cu ft/s) |
| Reservoir | |
| Creates | Fengman Reservoir (Songhua Lake) |
| Total capacity | 11,460,000,000 m3 (9,290,773 acre⋅ft) |
| Catchment area | 42,500 km2 (16,409 sq mi) |
| Surface area | 550 km2 (212 sq mi) |
| Maximum water depth | 75 m (246 ft) |
| Power Station | |
| Commission date | Stage I: 1943-1959 Stage II: 1992 Stage III: 1998 |
| Type | Conventional |
| Hydraulic head | 110 m (361 ft) (design) |
| Turbines | 1 X 60 MW, 2 X 65 MW, 1 x 72.5 MW, 4 x 83 MW, 2 x 85 MW, 2 X 140 MW Francis turbines |
| Installed capacity | 1,002.5 MW |
| Annual generation | 1890 GWh |
A new dam was completed in 2019, and the old dam will be dismantled, except for a small section preserved for historical interest .
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