Braće Pišteljića 22Banja Luka, BiH
Mon - Sat 7.oo - 15.ooSundays closed


Odjel Prodaje

  • Niskogradnja d.o.o.
    Braće Pišteljića 22
    78000 Banja Luka
    Bosna i Hercegovina
  • +387 51 348 000
  • +387 51 300 078

Water supply in Tunjice built by DOO Niskogradnja Laktaši consists of: water tank R1-Tunjice I, water tank R2 Tunjice II (Drakulic), pump station, which is located in the tank R1, booster station located on Tunjice III location, the water supply system consisting of:

Supply pipeline ф 700 mm, total length 1,700 m

Pressure pipeline ф 400 mm, total length 4,200 m

And fine mesh (ф 200 mm, ф 260 mm, ф 120 mm), total length 10,000 m

Tank R1, V1 = 5,000 m³ serves as buffer tank for tank R2, as well as the area below the same.


From the tank R1 water is pumped with two pumps into the tank R2 with the total power of 110 kW. In the pump station there is one standby pump with 55 kW engine and jockey pump with 18 kW engine.

Water is pumped from the tank R1 to the tank R2 by a pressure pipeline ф 400 mm and the same pipeline is fed back to consumers.

Altitude zone Tunjice III is covered by the booster pump which increases the pressure in the network to 5 bar so that population in the third zone can have water.

The system is quite complex and complicated and will have remote monitoring of all relevant parameters (pressure, flow, consumption ...)

To ensure the normal operation of the system, protection from water hammer was made with the latest equipment from Thermo Simax from Serbia, as well as system of absorbing valves -5 pieces.

R1 reservoir is located at an elevation + 195 m above the sea level and R2 reservoir at elevation + 255 m above the sea level.

The water supply system is funded by:

  • KFW Bank


{yoogallery src=[/images/stories/vodovod_tunjice]}

In mid-April 2015, a construction company " Niskogradnja " d.o.o. Laktaši initiated construction work on the construction of the motorway Banja Luka - Prnjavor from survey mark 8 + 200 km to 15 + 075 km, or from place Drugovići to place Hrvaćani.

The motorway section being built by "Niskogradnja" d.o.o. Laktaši is very challenging to build.

The section of 7 km includes the construction of four bridges, two overpasses and three underpasses. Earthworks and construction of embankments and cuttings represent the most important part of this section. Some dykes are as high as 10 m and depth of the excavation cuts is up to 20 m.

Section is characterized by passing through a populated area, loose soil with many streams and rivers along the motorway route.

The motorway route passes through the town, and the contractor has paid special attention to keeping all access roads to nearby homes and estates. In some places where the foundation soil of embankments was of poor capacity, we started the replacement of subsoil with a suitable material. An additional challenge for our construction workers was a temporary regulation of the flows of the river Crkvena and streams, which often cross the motorway route.


Engineers and technicians who are responsible for the construction:

  • David Hajduković, B.Sc.C.E.
  • Branimir Zih, B.Sc.C.E.
  • Siniša Kecman, Consruction technician
  • Predrag Davidović, Surveying technician


{yoogallery src=[/images/stories/autoput_bl_prnj]}

During the period of two years were executed works on motorway and structures construction; section Počitelj - Bijača, sub-section Zvirovići -  Kravice

till now on the most complicated section of koridor Vc in Bosnia and Herzegovina.  Works were executed very dinamicly and quality.

Noted section of motorway, total length of 5 km, which executed Joint Venture OHL ŽS - Niskogradnja d.o.o. Laktaši is consisted of:

  • full profile of motorway (route), total length of about  3 km;
  • bridges Studenčice (L =  600m) and Trebižat (L = 380 m), viaduct Pavlović (L = 380m);
  • -tunnel Bijela Vlaka (L = 400m);
  • underpass Bituljani (L= 80 m);
  • -interchange Međugorje, with structures tool stations "TS Međugorje" and overpass   "Međugorje".

On bridges Studenčica and Trebižat are used cantilever (  girders ) for construction of span construction – slabs, while on the viaduct Pavlović are used ramps for pushing of construction of slab. Bridge Studenčica is the higher bridge with pier height about 90 m. The route of motorway is mostly positioned in cut wherein the deepest cut is about 28 m.

On Design where Niskogradnja d.o.o Laktaši is  partner of the Main Contractor it can be ascertained that the works were executed with high quality and dynamic. Engineers, technicians, machinists, drivers and workers responded successfully on such challenging task and extremely inaccessible terrain.   Young team of engineers and technicians were following internacional construction procedure "FIDIC".

During the construction of motorway and structures  Niskogradnja d.o.o. Laktaši was host of many semianars and expert excursions, by which is achived that the young staff ( future engineers and technicians) meet with the most modern method of construction of demanding structures.

Engineers and techinicians which were charged on the Design of construction of motorway  Vc in front of  Niskogradnja d.o.o. Laktaši:

Gorica Popović, M.Sc.CE – Main Site Engineer for the  main alignment in front of JV OHL ŽS - Niskogradnja d.o.o. Laktaši

David Hajduković, M.Sc. CE – Construction manager in front of Niskogradnja d.o.o. Laktaši;

Željko Galić, M.Sc.CE – Responsible manager on site for earth works in front of  Niskogradnja d.o.o. Laktaši

Branimir Zih, B.Sc.CE – Responsible manager on site for structures, overpass Međugorje, toll stations TS Međugorje and sound barriers in front of Niskogradnja d.o.o. Laktaši

Dejan Damić, geodetic technician – geodetic  service in front of Niskogradnja d.o.o. Laktaši


{yoogallery src=[/images/stories/kravice]}

On 23rd March 2015 construction of the border crossing point Gradiska- Čatrnja (Phase I) began, on the E661 motorway corridor, in the municipality of Gradiska, i.e. on the borderline of states Bosnia and Herzegovina and Croatia.

The construction of this border crossing is of great importance for our country because it is one of two BIP (Border Inspection Post) crossings in Bosnia and Hercegovina, which means that it will operate full customs services for plant and animal products between the EU and Bosnia and Herzegovina. Currently Bijača is the only border crossing of this type in the country.

Since in the previous period the European Commission has given the green light for the construction of the bridge on the Sava river and put it on the list of priorities, the construction of the new border crossing in Gradiska receives its full meaning.


We have already written about the importance of this construction, you can judge for yourselves about its size based on the following data:

  • The total value of the first phase of works is 8,499,290.80 BAM with VAT (while the total value of the investment is 24 million), and is funded by the Department for Indirect Taxation of Bosnia and Hezegovina.
  • The total length of the plateau for the construction of the border crossing is approx. 1,200m,
  • The width of the plateau on certain profiles is up to 250m,
  • The plateau is being made by filling gravel material in an amount of about 202,000.00 m3,
  • Future border crossing complex is made up of several functionally and structurally broken units which are comprised of facilities intended for the operation of customs and border police, veterinary inspection facility with the area for the reception of animals, customs office facility, the facility for technical inspection of vehicles, functionally standardized control rooms, restaurant facility, forwarding block and other accompanying contents and car parks for border crossing personnel, seized vehicles etc.

Central Zone of the border crossing is designed to be covered so that all activities on the border crossing, regardless of the weather conditions, can take place.

The estimated date for the completion of the first phase of works is November of the current year.


{yoogallery src=[/images/stories/gran_prelaz_grad_catr]}

Works on constructing the Faculty of Political Sciences started at the end of 2011, at the location of the student campus in Banja Luka.

Considering the fact that the present Faculty of Political Sciences does not have its own premises, which is one of the main problems for smooth and quality delivery of instruction at this Faculty, a need appeared for building of this institution. The Banja Luka University leadership and the Republic of Srpska political leaders showed understanding for this problem, and provided funds for financing this project from the Republic of Srpska Government Development Fund.

Regular inflow of finances during the past year was very important to us, as a contractor, which enabled us to perform the set tasks in a quality manner and within the deadline.

After one year of work, and successful cooperation with investors and supervising engineers, we enter the final stage of performance of agreed works and we hope that they can be finished soon, so that the beginning of the next academic year can find the students, the teachers and faculty leadership in new premises.