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River: Nam Ngum

Please note: only dams ≥ 15m which have been completed, are under construction, or due to begin RCC placement in the current year are included in the table below.

Results are sorted in the following order: Finish of RCC, Start of RCC, Finish of Project, Start of Project, Height and alphabetical by Dam Name.

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Name	Country	Owner	Purpose	River	Reservoir capacity (m³x10⁶)	Construction dates				Dimensions		Volume		Facings						Placement		Cementitious material
						Start		Finish		Height	Length	RCC	Total	Upstream		Downstream		Spillway		Layers	Lifts	Cement	Pozzolan
						Project	RCC	RCC	Project	(m)	(m)	(m³x10³)	(m³x10³)	Slope	Type	Slope	Type	Slope	Type	(m)	(m)	(kg/m³)	(kg/m³)
Nam Ngum 4	Laos	EDL (Electricite du Laos)	H	Nam Ngum	110	02/18	03/19	01/23	- /24	74	252	230					(3')*					82	100

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Please note: only dams ≥ 15m which have been completed, are under construction, or due to begin RCC placement in the current year are included in the list below.

Results are sorted in the following order: Finish of RCC, Start of RCC, Finish of Project, Start of Project, Height and alphabetical by Dam Name.

Nam Ngum 4

Full Dam Information

Details

Country: Laos

Owner: EDL (Electricite du Laos)

Type: Gravity

Purpose(s): Hydropower

River: Nam Ngum

Reservoir capacity: 110 m³x10⁶

Construction Dates

Start of Project: 02/18

Start of RCC: 02/18

End of RCC: 01/23

End of Project: -/24

Specifications

Height: 74 metres

Length: 252 metres

Volume of RCC: 230 m³x10³

Total volume: -

Construction Methods

Facings

Upstream

Slope	Type

Downstream

Slope	Type
	RCC against formwork (GEVR/GE-RCC) [stepped face]

Spillway

Slope	Type

Placement

Layers (mm)	Lifts (mm)

Cementitious material

Cement (kg/m³)
82

Pozzolan (kg/m³)	Pozzolan Type
100