Two significant pre-construction developments took place last week for Bangalore Metro’s 21.25 km Gottigere – Nagawara line! This new 21.25 km line with 18 stations is officially known as Line 4 & Reach 6, and will primarily run underground through the city center & other congested parts as part of the 72 km Phase 2 project.
There are 3 major civil components of this line for which land acquisition of different degree / area is required: (1) a roughly 7 km elevated section from Gottigere to Swagath Road near Dairy Circle, (2) A roughly 14 km underground section from Dairy Circle to Nagawara, and (3) Kothanur Depot – a preliminary notification for acquiring land for it was approved and published in the Karnataka Gazette in November 2015. The depot is expected to come up west of Meenakshi Sundareswarar Temple and east of Kothnur Dinne village on the land parcel shown below:
Elevated Section (Gottigere to Dairy Circle)
The BMRCL invited demolition bids on this past Thursday (May 12) and plans to award the contract by June. The stipulated length of this little but crucial task is 9 months. Prior to its completion, the BMRCL will invite 2 contracts for the elevated section’s construction which I hope happens by the end of this year:
- Gottigere to IIM-B and Kothanur Depot line (4.545 km) including 3 metro stations at Gottigere, Hulimavu & IIM-Bangalore
- IIMB to Dairy Circle ramp (4.095 km) including 3 stations at JP Nagar, Jayadeva Hospital Interchange & Swagath Road Cross. Note: Construction of the Jayadeva Hospital Interchange (see design details) might be made a part of the RV Road – BTM layout (Line 3) contractor’s scope of works.
The BMRCL has taken an average of 10 months to award the 3 previous construction contracts (see list) for Phase 2, so if they were to invite tenders for the construction of these 2 packages by the end of this year, they are likely to only be awarded by Q3 2017 with ground work commencing in Q4 2017 or Q1 2018.
Underground Section (Dairy Circle to Nagawara)
As per a new report in the Bangalore Mirror, the BMRCL has identified 221 properties measuring a total of over 71,000 sq meters for acquisition. These will be either partially or fully acquired for constructing 12 underground stations and their exit/entrances & ancillary support structures.
As per a BMRCL official:
We have already finalised lands required for the construction of 10 underground stations out of 12. We may require an additional 20 to 30 properties for constructing Langford Town and Vellara Junction underground stations. In a month’s time, a list of the properties identified will be sent to Karnataka Industrial Area Development Board (KIADB) for issuance of notification.
To minimize the costs involved in land acquisition since the land price is too high in the city, it was decided to limit the acquisition to one acre per station. However, there will be changes depending on location, traffic diversion and others. BMRCL will go for additional acquisition of land for construction of the stations, but these are yet to be finalized.
The 12 stations in this 13.79 km section include: Dairy Circle, Mico Bosch Industries, Langford Town, Vellara Junction, MG Road (interchange station with Purple Line), Shivajinagar, Cantonment Railway station, Pottery Town, Tannery Road, Venkateshpura, Arabic College and Nagawara.
Both final notifications for land acquisition & tenders for their demolition are expected to be published by the end of this year after which it will take 9-12 months for the bidding stage for the following 3 packages to be carried out:
- Dairy Circle Ramp to Vellara staton (4.905 km) including 4 stations at Dairy Circle, Mico Bosch Industries, Langford Town & Vellara Junction
- Vellara station to Pottery Town station (4.275 km) including 4 stations at MG Road, Shivajinagar, Cantonment Railway station & Pottery Town
- Pottery Town station to Nagawara station & ramp (5.575 km) including 4 stations at Tannery Road, Venkateshpura, Arabic College & Nagawara
I expect contracts for these 3 packages to be awarded in early 2018 after which the first TBM will start tunneling works in 2019.
For more updates, check out the Bangalore section of The Metro Rail Guy!