Bandra worli sea link case study

about bandra worli sea link in mumbai

1. RAJKIYA ENGINEERING COLLEGE ,AZAMGARH BANDRA WORLI SEA-LINK : A CASE STUDY PREPARED BY : AKSHAY CHATURVEDI 1373600006

2. OVERVIEW OBJECTIVES HISTORY BASIC INFORMATION PROJECT DESIGN HOW THE SEA-LINK HELPS BRIDGE MANAGEMENT CHALLENGES ENCOUNTERED PROBLEMS PERCEIVED

3. BANDRA WORLI SEA-LINK : A CASE STUDY

4. INTRODUCTION Officially called Rajiv Gandhi Sea Link, It is a 8-lane sea link which connects Bandra with Worli Opened to the public on 30 June 2009, all eight lanes were opened on 24 March 2010. The sea-link reduces travel time between Bandra and Worli during peak hours from 60–90 minutes to 20–30 minutes .

5. OBJECTIVES To connect two points in Mumbai namely Bandra and Worli through sea. To reduce the traffic flow along the corridor of Mumbai . To reduce the travel time between Bandra and Worli . Reduction in Carbon Monoxide and Nitrogen Oxide Levels in Mahim , Dadar , Prabhadevi and Worli along existing roads 16

6. HIGHLIGHTS India’s first bridge in open sea conditions.Use of M60 grade concrete An intelligent bridge management system (IBS) provides traffic information , survilleance ,monitoring and control systems. Partners involved were ultratech ,TATA steel, VSL Singapore, SPCC etc.

7. HISTORY   Mahim Causeway was only link connecting western suburbs to Mumbai's central business district. Due to highly congestion at peak hours. The Western Freeway project was proposed to span the entire western coastline of Mumbai to ease congestion. The foundation stone was laid in 1999

8. BASIC INFORMATION Official Name Rajiv Gandhi Setu Carries 8 lane of traffic Owner MSRDC Design cable-stayed , concrete-steel precast viaducts Total length 5.6km(3.5 miles) Width 2x20m(66 ft ) Foundation type Pile foundation Longest span 2x250m (820ft) Vertical Clearance 20m (below bridge for transportation) Toll System Automated 16-Lane Toll Plaza

9. PROJECT Package-I: Construction of flyover over Love Grove Junction at Worli Package-II: Construction of cloverleaf interchange at Mahim intersection Package- III: Construction of solid approach road from the Mahim intersection up to the start of the Toll Plaza on the Bandra side and a public promenade Package-IV : Construction of cable stayed Bridges at Bandra and Worli together with viaduct approaches extending from Worli up to Toll Plaza, Intelligent Bridge System Package-V: Improvement to KAGK Road has not been taken up by the Company (August 2007)

10. DESIGN The 20,000 tonne Bandra -end span of the bridge deck is supported by stay  cables  within a very close tolerance of deviations in plan and elevation. Bandra – Worli Sea Link was the first infrastructure project in Mumbai to use seismic arresters. These will enable it to withstand earthquakes measuring up to 7.0 on the Richter scale   Foundations  for the BWSL's cable-stayed bridges consist of 120 reinforced concrete piles of 2,000 millimetres

11. The bridge consist of large pylons of diamond shaped of 128 metres high concrete tower

12. LOCATION Built over the Mahima Bay Connects Bandra (Suburb Mumbai ) to Worli ( Central Mumbai ) 8-Lane-wide Sea link length -5.6km ,3.8km over Sea

13. HOW T HE SEA-LINK HELPS ADDITIONAL CONNECTIVITY FROM CITY TO SUBURBS REDUCES TRAVEL TIME FROM 1 HOUR+ TO ONLY 20 MINUTES DECONGESTS MAHIM CAUSEWAY-125,000 VEHICLES A DAY AVOIDS 29 TRAFFIC LIGHTS SAVE Rs100 CRORE A YEAR IN VEHICLE OPERATING COST

14. BRIDGE MANAGEMENT POWER SUPPLY & LIGHTING : The bridge has a reliable power supply, backed up by diesel generators and auto mains failure panels for critical loads. SURVEILLANCE & SECURITY : An intelligent bridge management system (IBS) provides traffic information , surveillance, monitoring and control systems. TOLL COLLECTON :  The toll plaza is equipped with an electronic toll collection system.Total 16 toll plaza at bandra end.

15. CHALLENGES ENCOUNTERED Need for Ground Stabilisation of Pre-Cast Yard due to poor bearing capacity The maritime Board does not allow marine traffic in monsoon season  Highly uneven and variable foundation bed even for plan area of one pile.  Delay due to change in design of stray cable

16. PROBLEMS PERCEIVED Major traffic snarls at Worli , no solution Figured out Additional congestion on SV Road and across Lilavati Hospital Toll proposed – Rs 50 oneway ,may dissuade a few

17. REFERENCES h ttps://www.msrdc.org https://www.Wikipedia.org Coordinates : A monthly magazine on positioning,navigation and beyond