Construction of the Nam Ngum 1 (NN1) Dam Nam Ngum Dam
1 construction of nam ngum 1 (nn1) dam
1.1 first stage funding (1966)
1.2 planning of stage (1968)
1.3 stage 1 of nn1 project (1968-1971)
1.4 planning of stage ii (1973)
1.5 stage ii funding (1974)
1.6 stage ii of nn1 project (1976-1980)
1.7 fishery development (1978)
1.8 funding of stage iii (1976)
1.9 planning of stage iii (1980)
1.10 stage iii of nn1 project (1983-1984)
construction of nam ngum 1 (nn1) dam
first stage funding (1966)
in 1966 japan, united states, world bank , united nations established nn1 fund finance first stage of project.
planning of stage (1968)
in 1968 mekong commission completed definite design stage of nn1 project.
stage 1 of nn1 project (1968-1971)
the first stage of project implemented in mekong-commission part of 1968-1974 lao development plan. construction began in 1968 , completed in 1971. during stage dam given full supply level of 202.5 asl, 2 15 mw turbine-generator units, , intakes units 3, 4 , 5. total cost of stage $28 million u.s. dollars.
planning of stage ii (1973)
in 1973 government of lao pdr issued feasibility study in order plan of nn1 project stage ii.
stage ii funding (1974)
in 1974 lao pdr established stage ii fund of world bank, united nations, , asian development bank.
stage ii of nn1 project (1976-1980)
stage ii undertaken 1976 , completed in 1980. during stage ii 4 spillway gates installed, full supply level raised 212 m asl, , 2 40 mw turbine-generator units added power output. total cost of stage ii $49 million u.s. dollars.
fishery development (1978)
after completion of stage ii in 1978 government of lao pdr realized had neglected account how dam affect nam ngum river ecosystem, , hundreds of thousands of people relied on fishing subsistence. response issue fishery development projects contributed netherlands , switzerland. included construction of primary schools , water supply networks provision of gill nets , boat engines selected villages. these projects intended facilitate fishery employmentin nam ngum 1 reservoir. project facilitated movement of tens of thousands of local fisherman banks of nam ngum reservoir throughout 1980s , 1990s.
funding of stage iii (1976)
in 1976 government of lao pdr established nn1 stage iii fund of japan, united states , asian development bank.
planning of stage iii (1980)
in 1980 government of lao pdr issued feasibility study plan stage iii of nn1 project.
stage iii of nn1 project (1983-1984)
stage iii began in 1983 , completed in 1984. during final stage third 40 mw turbine-generator unit added dam’s power output. total cost of stage iii $20 million u.s.
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