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Sub-project: Ladislav pumping station – renovation of technological equipment 

Justification for implementation:

The pumping station was built and put into operation in 1987 and is used for pumping water from the subsoil, low-lying channel into the flow of the Ondava. The flow volume of water in the channel ranges from low levels of Q = 300 l.s-1 up to a maximum of Q = 5.70 m³.s-1.

In 1968, the Kammená Moľva pumping station was built and put into operation at a capacity of Q = 10.0 m³.s-1, in order to provide drainage for the whole left-side area of the river Ondava to Trhovište, up to the left-side bank of the Latorický dam. However, the pumping station can only reach this capacity at favourable hydrological conditions. At higher water levels in Latorica, its performance decreases. The drainage impact of the pumping station at Kamenná Moľva is affected negatively by this, but also by its eccentric positioning on the southern edge of the 25km long feather-shaped drainage area.

 

Given the above, the original oblong collecting area of the Kammená Moľva pumping station was divided into two regions:

  • the northern region with the Ladislav pumping station
  • the southern region with the Kammená Moľva pumping station

The collecting area of the Ladislav pumping station is 4,040 ha. The overall performance of the existing pumping station at Ladislav should be 5700 l / s and is currently ensured by 7 SIGMA type pumps. All the pump units at this particular pumping station at Ladislav have been in operation for more than 25 years, and are already worn. They are not reaching the required parameters and are often unreliable. Control depends only on maintenance of the equipment by personnel, without the required automation operation.

 

In order for the pumping station in question to reliably fulfil its function, it is necessary to update its technological apparatus – this requirement came about in the process of working on the project.

 

Reliable operation at the Ladislav pumping station is required also due to co-operation of this pumping station with the pumping station at Kamenná Moľva. The reliable pumping out of internal surface water and internal water, from the area lying along the left-side of the river Ondava, is achieved only through reliable operation of these two pumping stations. This means that, in times of high rainfall, it should protect against damage which would arise from the subsequent flooding.

 

DIVISION OF THE CONSTRUCTION PROCESS INTO ITS STRUCTURES AND OPERATIONAL TASKS

In terms of the construction in question, only the following installations and operational tasks are addressed:

 

Engineering apparatus:

S0 01 – Engineering adjustments on the installation of the pumping station

- Engineering part

- Electrical installation

S0 02 – Discharge piping from the pumping station

S0 03 – Engineering adjustments for ventilation of the installation

- Construction part

- Electrical installation

S0 04 – Adjustments of hard surfaces and landscaping

 

Operational documentation:

PS 01 – Mechanical part of the pumping station

PS 02 – Electro-technical part of the pumping station

cs ladislav svp

ČS Ladislav view

 

zariadenie cs ladislav

ČS Ladislav Technology

 

zastarane technologie vodohospodarske

ČS Ladislav

ZEMPPAS Project

Project title: „Zemplín – The Prevention of Floods and Drought – ZEMPPAS“

 

Project number: ACC01003

 

Title of the program field: Adaptation to change in climate – the prevention of floods and drought

 

Program number: SK02

 

Aim / Aims of the project: Developed strategies and measures for the adaptation to a changing climate

 

Total authorised expenditure for the project:  2 671 194 €

 

Project grant: 2 270 513 €

 

Co-sponsor: The European Economic Area Financial Mechanism, the State Budget of the Slovak Republic and Slovak Water Management Company, state enterprise, Košice branch.

 

Planned date to finish the project: 30.4.2016

 
Contract: for download in Central register of contracts

 
Receiver:
Slovenský vodohospodársky podnik š.p.
Ďumbierska 14, 04159 Košice

Kamenná Moľva pumping station

The site for the construction in question is the existing pumping station at Kammená Moľva which was built in the year 1960. This includes the pumping station building, the inflow section and the stilling basin. The pumping station of interest at Kammená Moľva works together with the pumping station at Ladislav. The mutual co-operation of these two pumping stations ensures the pumping out of internal surface water and internal water, from the area lying along the left-side of the river Ondava in times of high rainfall. This is especially true in the spring months, when the water-level doesn’t allow for the gravitational outflow of water from the area in question. The pumping station at Kammená Moľva pumps out internal water from an area of 8,250 ha., gravitating it to channels D and E. 

kamenna molva stanica

Ladislav pumping station

In 1968, the Kammená Moľva pumping station was built and put into operation at a capacity of Q = 10.0 m³.s-1, in order to provide drainage for the whole left-side area of the river Ondava to Trhovište, up to the left-side bank of the Latorický dam. However, the pumping station can only reach this capacity at favourable hydrological conditions. At higher water levels in Latorica, its performance decreases. The drainage impact of the pumping station at Kamenná Moľva is affected negatively by this, but also by its eccentric positioning on the southern edge of the 25km long feather-shaped drainage area. 

 

 

 

cerpacia stanica ladislav svp

Borša, Viničky

The cadastral area of the village Borša and Viničky is located in the south-western part of the district of Trebišov - the area is protected from the waters of the Roňava and Bodrog rivers by dams. Water from the protected area is drained into the Bodrog reservoir by dam outlets, which are equipped with slide-valve gates. Their functionality is linked to the readiness and the specialised manipulation of the human operator. At higher water levels, these must be closed and the water accumulates in the protected area until the time when the level in the reservoir falls below the threshold of the blocking outlets, that is, below the water level in the protected area. In the past, this setup was satisfactory when the presence of high water levels was short-term (a few days). Currently, the time that high water levels remain is increasing. Thus, in terms of urban-area protection, the accumulation of water in a protected area becomes unacceptable. For this reason, the ability to pump out water from the protected area is needed.

stanica borsa

Sirník

The area of interest in the urban area of the municipality of Sirník, district of Trebišov, is demarcated by the Hraň – Sirník drainage channel, and the woodlands of Szárcsatetó in the north-eastern part of the municipality. The drainage channel of Hraň - Sirník drains surface water from the adjacent region, past the right-side bank Ondava dam. The water flow is controlled by a sluice on the outflow installation. When the rate of flow increases from the Ondava, the floodgate on the drainage canal can close itself and prevent natural drainage of surface water into the reservoir. This results in a torrential outpouring of rainwater and seepage from the right-side bank Ondava dam, which threatens the property and inhabitants of the Sirník municipality.

 

Hraň

The sub-project addresses protection of the area against floods, in the municipality of Hraň, on land plot No. 180. The area of interest is flooded in times of high rainfall; therefore it is necessary to secure protection from internal water. The construction of pumping stations and collecting ducts/gutters would prevent flooding and subsequent damage to the property of the municipality and of citizens, since a residential zone of houses, a road, pavement and utility networks are located in the vicinity. The purpose of the pumping station is to ensure protection for the area of interest against floodwaters, that is, land plot No. 180 in the municipality of Hraň. The pumping station is located by the ventilation base of the Trnávka dam. Its function will be to pump out floodwater and flooded land through the dam into the Trnávka river. 

stanica hran