Thanneermukkom | Irrigation-kerala

Kuttanad Package -FMP- Modernization of Thanneermukkom Bund to manage salinity and minimize Ecological decay- Construction of Central portion of Thanneermukkom Barrage (3rd stage works) in Alappuzha District

Introduction

The project is being constructed for preventing saline water intrusion into the Kuttanad Paddy fields. This barrage was proposed to construct in three stretches for a length of 1402 m connecting Thanneermukkom in Alappuzha district and Vechoor in Kottayam district across the Vembanad Lake. The first two stages, Vechoor side completed in the year 1965 and Thanneermukkom side in 1975 respectively. The first phase had 31 shutters and 2 navigation locks. The second phase had 31 shutters and 1 navigation lock.

But the construction of third stage which is at the middle of lake could not be accomplished at that time. Hence these two stages were connected by an earthen bund (Coffer dam) for the transport of vehicles. Later in the year 2010 M.S.Swaminathan Research Foundation submitted a study report to the State Government about the Kuttanad bio-diversity. This Foundation recommended various projects and the construction of the third stage of Thanneermukkom barrage was one of the main projects proposed. The Government sanctioned a project amounting to Rs.180,66,79,202/- for the above mentioned construction of third stage. The third stage has 28 shutters and 1 navigation lock(middle portion connecting first and second phase) having a length of 428m.

First Phase (Vechoor)	31 shutters and 2 navigation locks ( completed in 1965)
Second Phase (Thanneermukkom )	31 shutters and 1 navigation lock ( completed in 1975)
Third Phase	28 shutters and 1 navigation lock ( middle portion connecting first and second phase) length 428m First two phases were connected by an earthern bund (Coffer dam) for transport of vehicle. In 2010 MSSRF( Ms Swaminathan Research Foundation) recommended for construction third stage of RCB removing Coffer dam. Accordingly government sanctioned the project for Rs. 255.355 crore.( GO (Rt) No. 1141/2013/WRD TVM dt22/10/2013) Abstract Construction of central portion 3rd stage – Civil work. Rs 151 rores Fabrication/ Erection of lock gates shutters 3rd Rs 35.60 crores Fabrication/ Erection of lock gates shutters 1st stage Rs 65.235 crores Electrification works 1st 2nd and 3rd stage Rs 3.50 crores Total Rs 255.335 crores stage and 2nd
Administrative Sanction	Rs. 255.335 cr ( GO Rt. No.1141/2013/WRD TVM dt 22/10/2013)
Head of A/C	4711-01-103-90-Kuttanad package
TS Amount	Rs 183 crores [Civil 151.00 cr + Mechanical 32.00 cr]
	No. 279/CE/KP/13-14 dated 11.11.2013 for Rs 183 crores as per S.O.R 2012 (Instructed that additional recovery may be effected from the contractor’s bill for the cost of earth from the specific items of EW excavations if it occurs as sand)
Estimated PAC	Rs 180,66,79,202/-
Agreement No.	04/SE/KDC/KTM/14-15 dt. 27.06.2014
Agreement Conditions	As per PWD Form No. 132, GWD Form No.83 & 84, Additional Conditions (Arbitration Clause deleted)
Agreed PAC	Rs 174,00,15,186/- (3.75% below E/R)
Site handed over	01.07.2014
Name of contractor	M/s Mary Matha –Tomar-Reid-Consortium Mary Matha Square, Arakuzha Road Muvattupuzha P.O Ernakulam-686661
Agreed TOC	05.01.2017 (920 days), extended up to 31.12.2018.
Current status	95% of work including Bridge and regulator has been completed and is functional. The bridge was opened to the traffic on 31/07/2018. Forming of the Link Islands at both the ends, and beautification works, removal of cofferdam etc.are to be completed.

OFFICES IN CHARGE OF THE WORK

Thanneermukkom Barrage construction is being carried out by Chief Engineer, Kuttanad Package, Alappuzha. The subordinate officers who are in charge of the construction are the Superintending Engineer, K.D. Circle, Kottayam, Executive Engineer, K.D.Division, Thanneermukkom, Assistant Executive

Engineer, K.D.Division, Thanneermukkom and Assistant Engineer, K.D.Section-1, Thanneermukkom