The Bandara Worli Sea Link is a cable-stayed bridge that connects the suburbs of Bandra in western Mumbai to Worli in south Mumbai. At 5.6 km long, it is one of India's most complex infrastructure projects. Construction began in 2000 but faced numerous delays and cost overruns due to technical challenges and monsoon restrictions, finally opening in 2009 at a cost of Rs. 1653.25 crore, over double the initial estimated budget. The sea link provides significant travel time savings and reduces pollution between the western and southern parts of Mumbai.

2. BANDRA WORLI SEA-LINKBANDRA WORLI SEA LINK
Presented By
TE ( CIVIL)
Ankita Pal
SSJCET

3. INTRODUCTION
 Officially known as Rajiv Gandhi Sea Link.
 Cable-stayed bridge with pre-stressed concrete-steel viaducts.
 Links the Bandra (Western suburb) and Worli ( South Mumbai).
 Inaugurated on June 30 , 2009.
 Among the most complex & advanced construction projects
ever in India.

4.  Designed By : Sheshadri Srinivasan
(Structural engineer ,
Working in Lebanese Engineering Firm
Dar-Al-Handshah )
 Commissioned By : Maharashtra State Road Development Corporation
 Constructed By : Hindustan Construction company , India ( HCC)

5. HISTORY
 Mahim Causeway was the only link connecting westernsuburbs to island
city of Mumbai, making it highlycongested during the peak hours .
 Vehicular traffic admeasuring about 120,000 PCUtravels on the Mahim
causeway everyday and during peak hours and it takes about forty minutes to
travelfrom Mahim causeway to Worli, a distance of about 8km.

6. LOCATION

7. BASIC INFO
Official Name “ Rajiv Gandhi Setu ”
Carries 8 Lanes of Traffic
Owner MSRDC
Design Cable-stayed, Concrete-Steel precast viaducts
Total length 5.6 Km ( 3.5 miles )
Width 2 × 20 m ( 66 ft )
Highest Point 126 m ( 413 ft )
Longest Span 2 × 250 m ( 820 ft )
Vertical Clearance 20 m ( below bridge for transportation )
Foundation Type Pile Foundation
Toll System Automated 16-Lane Toll Plaza

8. Time Frame
 Estimated Time Frame : 5 years
Construction begin : June 1995
Construction end : March 2003
 Actual Time Frame : 11 years
Construction begin : October 2000
Construction End : 24 March 2010
Opened : 30 June 2009

9. BUDGET
 Estimated Cost : ₹ 665.81 Cr
 Actual Cost : ₹ 1653.25 Cr
 The Increament in project cost was due to payments of escalation ₹ 213
Cr on account of inordinate delay in completion (61 months ) .
New technical changes in the bridge at the behest of new consultant₹70 Cr
.
Contractor for delay in award of work ₹ 125 Cr .
Interest liability due to delayed completion ₹ 230 Cr .

10.  PIERS :
 The span between the piers is 50 maters .
 This distance arrived by considering optimization between foundation cost
Vs. superstructure cost .
 If the piers are wide apart then foundation cost comes down , but the
superstructure becomes heavier and its cost goes up .
 Moreover, more number of piers provide better wind resistance .

12.  CABLE WIRE
 Are also known as ‘ Parallel Wire Stay Cables ’.
 Manufactured by “Shanghai Pujiang Cable Co. Ltd” China .
 Each cable consists a group of steel wires ( 6 wires ) .
 Each steel wire has a diameter 7mm with a breaking limit of 6.28
Tones.
 Group of these wires was packed in two layers of HDPE (High
Density Poly Ethylene) material .

14.  Highly uneven and variable foundation bed
even for plane area of one pile .
 The maritime Board does not allow marine
traffic in monsoon season . Thus work was
halted Mid-May only to re-commence in
October . Effectively reducing the work
schedule to only seven month in a year .
 Needed for extra steel trusses , further
experts .
 Delay due to change in design of stray Cable
.

15. BENEFITS
 Considerable savings in travel time from 40
min to 8 min
 Estimated savings in fuel and vehicle
operating cost is around $ 16.2 million .
 Stress free driving .
 Reduced accidents and noise pollution .
 Reduction in air pollution .