Success in Partnering<br />MCM Construction / Caltrans District 4<br />San Francisco Oakland Bay Bridge East Span Seismic ...
Prior to the start of construction, MCM and Caltrans sat down and talked about the project goals. <br />Because of the hig...
Environmental Excellence<br />Cooperation on technical aspects of construction (i.e. Hinge Pipe Beams)<br />Outstanding Sa...
Environmental Solutions<br />The OTD project is located adjacent to a large ESA, a major concern for the environmental age...
Environmental Solutions (Cont.)<br />The Caltrans Design Team envisioned access dredging followed by dredging the footings...
Hinge Pipe Beam Installation <br />Hinge pipe beams are one of the seismic design features that we don’t normally see in e...
Hinge Pipe Beam Installation<br />MCM and Caltrans Engineers worked together to determine the most effective method for in...
Safety<br />With the proper planning and personnel, the project completed with an outstanding safety record. <br />Less th...
Thank you for recognizing MCM and Caltrans <br />With the Excellence in Partnering Award<br />Questions?<br />
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MCM / Caltrans Partnering Showcase - AGC Spring Conference 2011

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MCM Construction / Caltrans District 4
San Francisco Oakland Bay Bridge East Span Seismic Safety Project
Oakland Touchdown Phase 1 (OTD1)

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MCM / Caltrans Partnering Showcase - AGC Spring Conference 2011

  1. 1. Success in Partnering<br />MCM Construction / Caltrans District 4<br />San Francisco Oakland Bay Bridge East Span Seismic Safety Project<br />Oakland Touchdown Phase 1 (OTD1) <br />
  2. 2. Prior to the start of construction, MCM and Caltrans sat down and talked about the project goals. <br />Because of the high profile and highly visibility nature of the project, it would be necessary to work together to understand the emerging environmental philosophy that is shaping today's construction.<br />The Oakland Touchdown contract fit into an overall schedule that required that the project be completed within a designated time frame. Schedule was to be a top priority. <br />Technical challenges with respect to the seismic features of the bridge. (Looks good on paper, but how do you build it?) <br />Pre-Construction Project Elements<br />
  3. 3. Environmental Excellence<br />Cooperation on technical aspects of construction (i.e. Hinge Pipe Beams)<br />Outstanding Safety Record<br />Project Partnering Highlights<br />
  4. 4. Environmental Solutions<br />The OTD project is located adjacent to a large ESA, a major concern for the environmental agencies. <br />The contract permits allowed for open water dredging which would be a major source for unwanted turbidity in the ESA. <br />
  5. 5. Environmental Solutions (Cont.)<br />The Caltrans Design Team envisioned access dredging followed by dredging the footings and then installing cofferdams to complete the work.<br />In an effort to drastically reduce the environmental impacts, MCM installed a land based access trestle and cofferdams, prior to dredging, so that sediments and turbidity were contained within the cofferdam. <br />Caltrans took it a step further and covered the work trestle with plywood and filter fabric to prevent any excavated material from entering the bay during the haul off. <br />
  6. 6. Hinge Pipe Beam Installation <br />Hinge pipe beams are one of the seismic design features that we don’t normally see in every day bridge building. <br />Installation tolerances of these pipe beams are very tight…. As were the cells that access the beams. <br />
  7. 7. Hinge Pipe Beam Installation<br />MCM and Caltrans Engineers worked together to determine the most effective method for installing these heavy pipes.<br />Old school engineers using old school methods taught us new guys a few things about geometry control without the use of sophisticated equipment. <br />
  8. 8. Safety<br />With the proper planning and personnel, the project completed with an outstanding safety record. <br />Less the 2% accident rate. <br />OCIP Safety inspections, Caltrans Safety, MCM Safety and RJC & Associates all played a role in creating a safety culture on the project. <br />
  9. 9. Thank you for recognizing MCM and Caltrans <br />With the Excellence in Partnering Award<br />Questions?<br />

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