SFOBB Risk Plan Final Draft Part II Rev 2

SFOBB Risk Plan Final Draft Part II Rev 2 - PM595 RISK...

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PM595 – RISK MANAGEMENT, FALL SESSION B San Francisco/Oakland Bay Bridge Risk Management Plan Submitted by: – Project Manager 2/21/2011
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TABLE OF CONTENTS 1.0 Approach 1.1 Introduction Program risk threatens the ability to achieve cost, schedule and technical performance objectives. Program risks are caused by lack of complete information about the course of future events. The risk associated with a future scenario is determined by a combination of: (1) likelihood of occurrence, and (2) consequence if it occurs. The purpose of risk management is to 1) reduce the likelihood of a risk occurring, and/or 2) reduce the gravity of the consequences in the event that the unfavorable scenario is played out. Risk is a concern for Caltrans and all the stakeholders involved in this project. A realistic and workable risk management plan, conscientiously implemented, will contribute to the success of the San Francisco/Oakland Bay Bridge (SFOBB) program. The SFOBB Risk Management Plan, described herein, is an organized process for identifying, assessing, prioritizing, mitigating, tracking and closing risks. It is forward looking, structured, and continuous.
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ensure that the approach leads to an effective use of program resources, furthers the goals of staying within cost, schedule and performance constraints, and includes the California State Government and contractors. The risk management function cuts across the entire SFOBB program, addressing and interrelating cost, schedule, and performance risks that threaten the achievement of program goals. The risk management process and risk information is intended to be available to all SFOBB personnel, including the customer and suppliers, so that everyone is responsible for identifying risks, is aware of program risks and is informed of the progress of mitigation actions. 1.2 Project Overview This project includes the construction of a new 2,051' (625m) single-tower, self-anchored suspension bridge. The steel tower is 525' (160m) tall, composed of four legs strutted together. The 1,854' (565m) suspended span includes a 1,263' (385m) main-span and a 591' (180m) side span. The deck is over 197' (60m) wide. The 4,600' (1,400m) long, 31.5 inches (800mm) in diameter main cable is continuous from east deck to anchorage to tower top to west deviation anchorage back to tower top and back to east deck anchorage. Total weight of structural steel is 55,285 tons (50,145mt). With the exception of the caps for the east and west piers, this entire contract is comprised of structural steel fabrication and erection. The deck is composed of twin steel boxes of 92' (28m) each, strutted together for an out-to-out width of over 197' (60m). In addition, there is a 17' (5m) wide bike path that is cantilevered from one of the 28m boxes. The deck panels are of varying lengths, and weigh between 500 and 2,200mt each. The total structural steel weight of the deck is 34,000 tons (30,844mt). The cable has a weight of
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SFOBB Risk Plan Final Draft Part II Rev 2 - PM595 RISK...

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