• 1
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9

Besides providing consulting services, Saman Ab Sarzamin Consulting Engineers (SAS) is capable of providing its professional services for contracting services, operation, and maintenance of structures and systems, and river engineering. This part of the SAS potentialities, in parallel with its consulting capabilities, has brought a deep knowledge for the company through the implementation of a variety of projects, mostly related to dam’s operation and maintenance, irrigation systems and networks, and water supply and drainage management with the highest standards and through the application of new technologies and modern machinery and equipment.

A wide range of contracting services including but not limited to the following is provided by the SAS.

Contracting Services

  • Construction of earth-dyke and embankment dam
  • Construction of concrete reservoir, sewage treatment plant, hydraulic and electric equipment, water and wastewater collection networks (pump stations, pressurized pumping stations, wastewater pumping stations, stormwater pumping station, treatment facilities)
  • Construction of surface and underground concrete channels, water reservoirs for irrigation of green spaces
  • Design, installation, and commissioning of smart water and power meters
  • Execution of water transmission lines (intubation tubes, leak detection process, implementation of filtering method, etc.)
  • Design, construction, and installation of intake’s gates and sedimentation basin of diversion dams
  • Replacing worn gates with new and equipped one
  • Repairing leaks restore the structure’s stability of irrigation systems by slip lining and pipelining
  • Line plugging services, implementation lining for concrete structures, and utility line location
  • Design, construction, and supervision of potable water distribution services
  • Design and construction of water transmission lines

Operation and maintenance of dams and networks


  • periodic inspections
  • Specialized inspections
  • emergency inspections
  • detailed inspections

Operation and maintenance, repairing and safety of dams

  • Measures of renovating and curing of facilities
  • Repairing and restoration of inspection’s equipment (hydro-mechanical equipment, electricity facilities, actions are taken to reducing vulnerability in urgent situations)
  • Inspection of the dam structure and its appurtenant facilities
  • Safety and stability control (Irrigation and drainage networks in downstream of dams, the body of the dam, water diversion facilities)
  • Dam and dike stability and failure evaluations
  • Reading and recording observed data (water level changes of dam’s lake, data of hydrometric stations in upstream and downstream of the dam, recording the discharge of outlets of the dam, control the leakage of galleries and drainage networks, recording considerable events such as flood or overflowing, piping, measuring the quality of water lake)
  • Supporting and guarding of measurement instruments and appurtenant structures
  • Safety control of water installations and physical protection of the dam’s structure including reservoir, body structure, shaft intake, hydro-mechanical and hydro-electrical facilities, floating pumps
  • Regular services of the discharge measuring instrument (ultrasonic flow meter, electromagnetic flowmeter, Coriolis mass flow meter)
  • Rehabilitation and renovation of manholes and galleries of the dam
  • Evacuation of screeners, sedimentation basins
  • Physical protection of appurtenant facilities
  • Extracting rule curve for the operation of the dam, optimization of rule curves for each operation period (baseline and future intervals)

Emergency Action Plan (EAP)

  • Flood control
  • Adjusting the rout of rivers
  • Providing emergency instructions
  • Collecting statistics, data and GIS data
  • Field visiting of the site
  • Passive defense and critical management
  • Prevention of backflow