Published On : Wed, Jul 29th, 2015

OCW completes Seminary Hills MBR (Part-I) rehabilitation work

  • Sitabuldi Fort (Killa) MBR reconstruction work in full swing
  • Now overhead water tanks (ESR’s) in a ‘Blue’ look

Semi MBR
Nagpur: The 35-year old, Seminary Hills Master Balancing Reservoir (MBR) which is known as ‘Heart’ of the city’s water supply system has been totally rehabilitated by Orange City Water recently.

The Seminary Hills MBR was constructed in 1982 and was not been repaired since then. Almost 50% of the water is wasted due to leakage from these MBR. Thus the rehabilitation of MBR was a must.

The Orange City Water (OCW) which has been operating and maintaining water supply system of city, took initiative and on priority basis successfully not only plugged leakages of 11 MLD capacity Seminary Hills MBR by using ‘Pressure Grouting’ technique, but also saved thousands of litres of water going waste, through its rehabilitation process.

It must be mentioned here, OCW used latest ‘Pressure Grouting’ technique for rehabilitating Seminary Hills MBR. It is technique where series of holes were drilled through the concrete slab and wall of ESR, and a grout tube then inserted into each hole. Then a special chemical is pumped under pressure through each hole. The grout then displaced, compacted and solidified thus forming grout columns. Pressure grouting has now stabilised the existing concrete walls, slabs etc. these MBR.

1) The roof slab of Seminary Hills MBR had become highly deteriorated, so OCW dismantled it and rebuild a new slab
2) Tie beams & columns: Concrete at most of the places were spelled out, reinforcement got exposed & corroded. Around 12 columns which were highly deteriorated & cannot be regained were dismantled & re-casted.
3) After completion of Roof slab & guniting (procedure to out quote MS pipeline) works entire surface inside the MBR was coated with food grade epoxy paint.

There are two MBR’s each of 11 MLD capacity located at Seminary Hills (Part -I and Part II), which supplies water especially to West, South, Central Nagpur.

Earlier, the two MBRs which were interconnected and also connected to the Treatment Plants directly were isolated. The water is first supplied to these MBRs and then further supplied to the city.

OCW first isolated these MBR’s and shifted supply to one tank and the other tank was taken under rehabilitation. So that without affecting the water supply to the city the rehab work can be completed.

Sitabuldi Fort (Killa) MBR (Fort –II)
Reconstruction work in full swing
Fort MBR 1
Meanwhile, from August 28, 2015, iin a bid to strengthen water supply system and boost water supply especially in the localities of Central Nagpur, Orange City Water (OCW) has started total re-construction of new Master Balancing Reservoir (MBR) at Sitabuldi Fort (Killa).

Presently, like Seminary Hills MBR’s, there are two MBR’s located at Sitabuldi Fort (Fort-I and Fort-II), which supplies water especially to Central parts of Nagpur. Out of these age old MBR’s Fort –II has been completely demolished and new MBR will be constructed on the same site. The Fort -II MBR constructed almost 50- years back have never been touched yet and was heavily leaking from all sides.

Construction work of new MBR having 7 meter height and 50x 25 surface area is going on in full swing and by June 2016 the new MBR will start functioning.

the prerequisite tasks of this mammoth job include isolation of Fort Tanks, Bypass Arrangement, valve and flow meter installation, etc. were taken up on 27th August 2014.

Now ESR’s in a ‘Blue’ look

Blue ESR 2
All ESR’s commonly known as overhead water tanks in city will soon have a new ‘Blue’ coloured look. Nagpur Municipal Corporation and Orange City Water have planned to paint these ESR’s with a new Blueb colour coat.
The Kannamwar Nagar ESR has already been given blue colour coat. Soon other ESR’s like Dhantoli, Gayatri Nagar, Ram Nagar and Nandanvan will also get a new look.