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Uma Oya Headrace Tunnel

Hydropower Plant Tunnel Uma Oya Sri Lanka

The Uma Oya Multipurpose development project is a water transfer, hydropower and irrigation project in the south-Eastern part of the central highland region of srilanka. The main part of the scheme is situated in the south-western part of the Badulla district in the province of Oya. The project will transfer annual long-term average water quantity of 145 mcm for irrigation purpose and will develop a head of a more than 700 m for the production of electricity in a power plant with rated capacity of about 120 mv. The Project Consists Of Two Rcc Dams. The Frist One is To Be Built on Uma Oya River at Puhulpola Region. The Water from Uma OyaRiverbe linked through an approximately 3.7 km long link tunnel (further called conveyance tunnel) into the reservoir of the dyraaba dam built on mahatotillaoya river. from where an approximately 15.2km long headrace tunnel and 595m high vertical shaft will convey water to the underground powerhouse. The discharge from the powerhouse will be directed into alikotaoya River Through an approximately 3.6 km long tailrace tunnel, Which Is a tributary of kirindiOya River.


Status of Project: complete

Project Highlights

Role of Parhoon Tarh: Contractor
Client: Farab Company
Consultant Engineer: Amberg Engineers
Location: Sri Lanka
Project Cost: 36 million USD
Project Duration: 25 Months

 

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Project Volumes

Concrete Volume: 1,000 m3
Excavation: 222,000 m3

Project Specification

Length of Tunnel: 15 km
Tunnel outer Diameter: 4.3 m
Tunnel inner Diameter: 3.8 m

Project Goals

  • Construction of Headrace Tunnel -15 Km Length- of the Uma Oya Multipurpose Development Project in Sri Lanka by mechanized method

Project Stakeholders

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Twin Towers Telecommunication of Company of Iran

Twin Towers Telecommunication of Company of Iran

TCI company’s headquarters and subsidiaries is located in the North West Region of Tehran on the south side of Hemmat highway near by Sheikh Bahai Avenue . The project includes two 34 story towers and a multistory parking ,twin towers are exactly the same in structures and each one has 4 stories undergroud and 30 stories above. Among all experienced an reputable contractors Parhoon Tarh approved in the tender in June 2012 and was introduced as main contractor.


Status of Project: In Progress

Project Highlights

Role of Parhoon Tarh: Main Contractor
Client: Iran Telecommunication Company
Consultant Engineer: Consulting engineers of planning and design
Location: Iran-Tehran Province
Project Cost: 2,800 Billion IRR
Project Duration: 36 months

 

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Project Volumes

Stabilization: 13,000 m2
Piling: 19,000 meter
Concrete Works: 90,000 m2
Framework: 190 tons
Reinforcement: 75,000 tons
Anti-Fire Painting: 17,000 m2

Project Specification

Height of each Tower: 158 m from ground
No. of Floors for each Tower: 34
Type of Roofing: Metal Deck
Type of Structure: Steel Structure
Area of each Tower: 52,000 m2
Total Area: 196,000 m2

Project Goals

  • Providing office spaces, classes, document archives, stores, conference rooms, restaurants and other requirements of Telecommunication Company of Iran

Project Stakeholders

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Shiraz Forsat Railway Station

Shiraz Forsat Railway Station


Status of Project: Completed

Project Highlights

Role of Parhoon Tarh: Main Contractor
Client: Shiraz Urban Railway Organization
Consultant Engineer: Monenco Consulting Engineers
Location: Iran-Fars Province
Project Cost: 11 million USD
Project Duration: 16 months

 

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Project Volumes

Concrete Volume: 19,000 m3
Formwork: 18,000 m2
Reinforcement: 2,900 tons
Steel Works: 760 tons
Piling: 1,220 m

Project Specification

Total Area: 7,000 m2
Method Statement: Bottom to Top

Project Goals

  • Development of urban railway plans in Shiraz city regarding the fundamental demands of public transformation

Project Stakeholders

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Caspian Combined Cycles Power Plant

Caspian Combined Cycles Power Plant

Mazandaran Combined Cycle Power Plant has been constructed in Noshahr city at Mazandaran province. Capacity of this power plant which supplies a part of the overall electricity network of the country, is 450 MV, being supplied by operating one gas unit. The main owner of the project, is Mahtab Caspian Power Generation Company. All construction & installation operations related to Noshahr Power Plant, are carried out in form of 3 contracts: (1) construction & civil works of the project (2) installation of crane, metal structure and sandwich panel (3) purchase of goods & equipments. By construction of combined cycle units, while improving the environmental conditions, increase of the power plant’s efficiency also became possible. The main tasks of the execution part included all soil operations of the power plant site, all building works of the tankers, buildings and warehouses related to the main power plant buildings, performing all interring works, etc. Also the main works of the design & execution (including design, procurement, supply & execution) included all landscaping operations, filtration house, sewage system, office buildings as well as all mechanical & electrical operations related to air-conditioning system, fire extinguishing, procurement & installation of the cranes used in the site.


Status of Project: Completed

Project Highlights

Role of Parhoon Tarh: Contractor for complete execution of executive activities
Client: Energy Gostaran Motahed Co.
Consultant Engineer: Raz Ahang Co.
Location: Mazandaran Province
Project Cost(along with purchase & installation of cranes): 1,394 billion rials
Project Duration: 30 Months

 

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Project Volumes

Concrete Work: 22507  m3
Excavation: 161,148  m3
Formwork: 45,104  m2
Reinforcement: 2,815 T
Sandwich Panel: 19,634  m2
Steel Structures: 2,464 T

Project Specification

Type of Power Plant: Combined cycle
Power Plant Capacity: 450 MV
Number of Units: 1 Gas Unit

Project Goals

  • Power Generation & Improvement of Environmental Conditions

Project Stakeholders

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Dam 1 & 2 Akhtar Site Flood Control System

Dam 1 & 2 Akhtar Site Flood Control System

Considering the torrential rains and occurrence of flood in Pars area and for purpose of detention and controlling the process of flood by dam construction and water reservation behind the constructed dams and gradual discharging thereof, the executive operations of dam 1 & 2 of Akhtar Site flood control system is under construction at Kangan city, Bushehr province. This project consists of the detention gravel dam with concrete coating and execution of all hydraulic details, miscellaneous works, mobilization and demobilization of the workshop according to the map & technical specifications Almaar project is 34 kilometers far Maimana city, Faryab province, Afghanistan. The project includes a 68-meter-high concrete gravity dam and irrigation network in an area of 4000 hectares.


Status of Project: Completed

Project Highlights

Role of Parhoon Tarh: Main contractor, member of Tablieh-Parhoon Tarh joint venture
Owner: Pars Oil & Gas Company
Location: Bushehr Province
Project Cost: 730 billion rials
Project Duration: 24 Months

 

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Project Volumes

Excavation & Rock Removal: 204,600 m3
Embankment (main frame execution): 897,600 m3

Project Specification

Type of Dam: Gravel (rock fill) with Concrete Coating (CFRD)
Length of the Dam Crown D1: 231 m
Length of the Dam Crown D2: 172.4 m
Dam Height D1: 22 m
Dam Height D2: 50 m

Project Goals

  • Protection of the downstream facilities of South Pars Phases 13, 22, & 24, against the destructive floods

Project Stakeholders

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Shah Wa Arous Dam

Shah Wa Arous Dam

The main constraint on developing sustainable large scale agriculture in Afghanistan is inadequate water resource, although total water availability is substantial annually. Therefore, development and regulation of the rivers & streams are necessary in order to facilitate water supply throughout the year, mitigate flood damages, generate hydro-power, domestic supply, etc. Shah-Wa-Arus multipurpose Project is one of the suitable projects based on performed prefeasibility & feasibility studies.


Status of Project: In Progress

Project Highlights

Role of Parhoon Tarh: EPC Contractor as member of Tablieh-Parhoon Tarh J.V.
Client: Afghanistan-Ministry Of Energy & Water
Consultant Engineer: Alborz Sazeh Consultant Engineers
Location: Afghanistan-Kabul
Project Cost: 48 million USD
Project Duration: 42 months initial contract period + 730 days extension

 

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Project Volumes

Dam Concrete Volume: 333,000  m3
Excavation Volume in Rock: 80,000  m3
Access Road Length: 6 km

Project Specification

Type of Dam: RCC (Roller Compacted Concrete)
Dam Crest Length: 303 m
Type of Spillway: Free Spillway on Dam Crest
Annual Production: 3.60 GWH/year

Project Goals

  • Agricultural land extension of 2,800 hectares Flood control and prevention of resulting damages | Power production of 1.2 MW
  • Increasing the groundwater level

Project Stakeholders