Technical Information

Body specifications

Item	Quantity
Dam type	RCC
Crest width	8 m
Height from foundation	158 m
Foundation width	157 m
Crest length	211 m
Total body volume	1.1 million m3

Reservoir specifications

Item	Quantity
Total volume of reservoir	228 million m3
Width of reservoir	200 m (average)
Area of reservoir	4.11 km2
Normal level	1756 masl
Length of reservoir	20 km

Diversion system

Item	Quantity	Item	Quantity
Number of diversion tunnels	1	Internal diameter after lining	8 m
Length of diversion tunnel	369 m	Volume of open-cut excavation	11200 m3
Typical cross Section	Cirde	Volume of underground excavation	24000 m3
Type of lining	Concrete	Type, Height and volume of upstream cofferdam	Rockfill, 21.6m, 18000 m
Excavation diameter	9.52 m	Type, Height and volume of downstream cofferdam	Rockfill, 11m, 3120 m

Instrumentation

In this regard no data exists.

Spillway

Item	Quantity
Type of spillway	Free Steppted+Gated Spillway
Discharge capacity	2900 m3/s

Quarries and their specifications

In this regard no data exists.

General specifications of powerhouse

Item	Quantity
Type of powerhouse	Surface
Annual energy generation	986 GWH
Installation capacity	450 MW
Type of turbine	Francis with vertical shaft

Specifications of powerhouse equipments

Item	Quantity	Item	Quantity
Number of turbines	2 units	Outlet power of each generator	225 MW
Power of each turbine	230 MW	Nominal voltage of each generator	1507 KW
Maximum output	95.12%	Speed of rotation of each generator	300 rpm
Design height of turbine	431 m	Nominal current of generator	9300 A
Manufacturer of turbine	Alstom (China)	Manufacturer of generator	Alstom
Number and type of generators	2 units

Specifications of powerhouse building

In this regard no data exists.

Specifications of powerhouse outlet tunnels

In this regard no data exists.

Specifications of powerhouse waterways

In this regard no data exists.

Technical specifications of post and switchyard

In this regard no data exists.

Specifications of tunnels

Item	Quantity	Item	Quantity
Length of intake tunnel	1270 m	Average diameter of penstock	4 m
Diameter of intake tunnel	6 m	Number of surge tanks	2
Type of lining	Concrete	Type of surge tanks	Throat baffle
Number of penstocks	2 lines	Height of surge tanks	130 m
Length of each penstock	2400 m	Diameter of surge tanks	5 m

Intake structures

Item	Quantity	Item	Quantity
Number of openings	3	Number of stoplog gates	12
Width of opening	6.3 m	Type	Mobile, control from level of 1763.2
Height of opening	15.46 m	Type of inlet gate	Radial
Intake level	1707	Width of gate	4.8 m
Maximum design flow	115.6 m3/s	Height of gate	6 m
Design head	55 m	Minimum operation level	1721

Outlet structures

In this regard no data exists.

Access roads and bridges

1- Technical specifications of access roads

Item

Quantity

Renovation road from Horr-Abad to Gardaneh-Namak(2nd grade asphalt road) 20 km

Access road from Gardaneh-Namak to powerhouse(B2) Approximately 22 km

Width of the road 7 m

Embankment volume of B2 road 1.2 million m3

Excavation volume of B2 road 3.2 million m3

Length of separating walls Approximately 3400 m

2- Technical specifications of the bridges

A metal bridge with the width of 33 m is constructed in front of the access tunnel to the dam heel (T2).

3- Technical specifications of access tunnels

Item	Quantity
Length of access tunnel to dam crest (T1)	1500 m
Length of access tunnel to dam heel (T2)	1450 m
Cross section	U shape
Height of tunnels	8.5 m
Width of tunnels	8.5 m
Volume of underground excavation	Up to 175000 m3
Concrete placement volume	Approximately 6500 m3

Complementary operations

1- Permanent buildings:

Erection of following buildings has been taken into consideration due to considerable distance between the site and nearest city (Aligoodarz) for accommodation of site personnel of client and consultant as well as provision of office space:

Item	Description	Area
1	Guest houses and Kitchen	5500 m2
2	Office buildings and assembly hall	2200 m2
3	Gymnasium	800 m2
4	Auxiliary and miscellaneous buildings such as warehouse, gas station, clinic, bascule etc.	1500 m2(approx)
5	Landscaping and covered parking area	10 acres (approx)

2- Infrastructure facilities:

Following major activities have been taken into consideration for infrastructure facilities:

- Diesel power plant with the capacity of 5 Mega Watt

- Water supply network (potable and industrial water) including 5 underground and aerial water storages and approx 20 kilometers of water supply network

-Satellite data transmission facilities for exchanging of information/ telecommucation between IWPC Head Office and Site

- Facilities include gas station and weight-bridge

Rudbar Lorestan Project