After receiving a go-ahead from the European Investment Bank (EIB), the Bangalore Metro Rail Corporation Ltd. this week invited bids for the civil construction of 2 ramps, 12 stations and twin tunnels on Bangalore Metro’s new 21.42 km Gottigere – Nagawara line. This 13.916 km underground section, between Dairy Circle and Nagawara, on Reach-6 of the 72 km Phase 2 project has been divided up into 4 packages and a total of 13 TBMs are required to be deployed by the contractors.
Bids for this line’s 7.50 km elevated southern portion from Gottigere to Swagath Road were invited in March and financial bids are expected to be opened soon.
Contract Package-1 (R6-UG-P1)
Design & Construction of Underground structures (Tunnels & Stations) of length 3.67 Km (approx.) from South ramp (including) to Vellara junction station (excluding) (Chainage 7516.12 m to11184.45 m) including allied works and 3 Nos. of UG Metro Stations viz, Dairy Circle, MICO Industries and Langford Town in Reach-6 line of Bangalore Metro Rail Project, Phase-2.
Estimated Cost – Rs. 1268.90 crores
Contract Package-2 (R6-UG-P2)
Design & Construction of Underground structures (Tunnels & Stations) of length 3.62Km (approx.) from Vellara junction station (including) to Cantonment station (excluding) (Chainage 11184.45 m to 14801.35 m) including allied works and 3 Nos. of UG Metro Stations viz Vellara junction, M.G. road and Shivajinagar in Reach-6 line of Bangalore Metro Rail Project, Phase-2.
Estimated Cost – Rs 1325.97 crores
Contract Package-3 (R6-UG-P3)
Design & Construction of Underground structures (Tunnels & Stations) of length 3.32 Km (approx.) from Cantonment station (including) to Venkateshpura station (Part) (Chainage 14801.35 m to 18118.00 m) including allied works and 3 Nos. of UG Metro Stations viz, Cantonment station, Pottery town and Tannery Road in Reach-6 line of Bangalore Metro Rail Project, Phase-2.
Estimated Cost – Rs. 1334.83 crores
Contract Package-4 (R6-UG-P4)
Design & Construction of Underground structures (Tunnels & Stations) of length 3.31 Km (approx.) from Venkateshpura station (including) to North Ramp (Chainage 18118.00 m to 21432.89m) including allied works and 3 Nos. of UG Metro Stations viz, Venkateshpura, Arabic college and Nagawara in Reach-6 line of Bangalore Metro Rail Project, Phase-2.
Estimated Cost – Rs. 1117.86 crores
The duration/completion time for each is 36 months. Note that this is only for civil construction, and not for interior finishing or other system installation works within the tunnels or stations.
Tender documents for all 4 packages went on sale on June 29 and the last date for submitting bidding documents is 3 pm on August 28 after which the bids will be opened & evaluated for eligibility at 3:30 pm. Technical evaluation for underground section is a lot more time consuming than for elevated sections, so I expect the financial bids to be opened in the 1st half of 2018 with ground work for TBM launch shafts starting in 2nd half of 2018 and tunneling work only in 2019.
The notice mentions that any bidder (tenderer) can only win a max of 2 packages –
The Tenderer can offer conditional discounts for any number of combination of two contract packages. However, the tenderers should note that a tenderer shall be awarded with a maximum of TWO individual Contract Packages only
As per a reliable source, here’s a breakdown of the mandatory minimum number of TBMs required to be deployed –
• UG-P1 – 4 TBMs
• UG-P2 – 3 TBMs
• UG-P3 – 4 TBMs
• UG-P4 – 2 TBMs
The tender documents offer financial incentives for contractors to complete different milestones and overall work ahead of time. I’ll cover that in a separate post whenever I get a hold of the exact details.
Phase 2’s Status
With this development, the BMRCL has completed inviting bids for all sections of Phase 2 (see list). Bids for the 1st section (R2A from Mysore Road – Pattanagere) were invited back on June 30 2014, so they’ve taken 3 whole years just to initiate construction work. On the civil side of things, they now have to invite bids for 4 depots located at Challeghata (Purple Line), Thathaguni (Green Line), Hebbagodi (RV Road – Bommasandra Line-4) and Kothanur (Gottigere – Nagawara Line-4).
After this, BMRCL will also have to invite bids for technical systems such as rolling stock (trains), signalling system, telecommunication system, AFC gates, escalators etc. All of these systems are planned to be financed by the Asian Infrastructure Investment Bank (AIIB) with whom the BMRCL has been in talks with since 2016.
Blue: Under Construction | Black: Contract Awarded/Site Preparation/Test Piling | Purple: Bids Invited
Note – BMRCL just awarded the HCC-URCC JV with a contract to build the RV Road – HSR Layout section (R5 P3) on June 27.
For more updates, check out the Bangalore section of The Metro Rail Guy!