panko, but the jobs started and you can see the buildings going up in the city. the lowest bid was received from shimmick construction company and that is the one that i am recommending. we have no bid protests from the other bidders. so, we are recommended to go ahead with an award to shimmick. not only are they qualified, but they are a large contractor who handle large work in california, not just all over the whole country. some examples being in a joint venture they did the mta side in los angeles, a $600 million, contract and the joint venture partners some year ago was obayashi so there is a working relationship there. >> they did the golden gate bridge, and the south approving $58 million. and the waste water treatment

plant, all concrete, $50 million themself and not subcontracted. they did a large dam, and southern california for $94 million, all concrete work, slip ways. and just recently, the warm springs extension $137 million. they are what i would call the 97 percent level, which is the reason that we got them to the bidder they need to move on to the next job with a crew and they are bringing subcontractors. and they have by experience, they have 18 percent sbe participation which is slightly exceeded our goal. the largest of those sbe contracts is actually $15 million out of the $20 million which is the land of oso brothers and hey wood, they are a very good concrete finisher and i worked with them on other jobs and in other people's bids too. the largest single subcontractor is not sbe, that

is rebar contract, which is $32.6 million. there is a lot of steel to get into this job. it is not a company that i know, it is in fact a holding company that bought up pacific coast steel, so we are really getting pacific coast steel. but they are no longer sbe because they are bought out by a multinational which happens. this is the lowest responsive bid. it is a balanced bid from my experience, the contractor is not loaded. and so i am very comfortable to recommend it and i would look forward to working with shimmick as the kind of people that are going in price and their coming out prices are very much the same number, a small percentage increase usually change orders not claims. >> any questions? >> i do have one, director ortiz? >> i am trying to understand all of this increases and all of that stuff. when you saying there by

increasing authorized direct costs by $110 million. is that to web core original work? what is? it is increased to what? >> well, web core on this project is general contractor. and we get permission to them to award contracts, that we take out to bid and the $111.7 million is shimmick's bid to do the work that is the work that covers all of it. the markup that you see, the extra $9 million is in fact the percentage in our contract with web core for them to administer to make concern that there were no glitches between the contractors that were working on the job and the general contractor responsible. >> so when you say, therefore increasing authorized direct costs by $111... what are they increasing? >> web core's contract is increased each time that we let in a new subject.

we did not give them a contract for the $580, 600 million off the start of the project. we give them a contract that goes up every time that the board approves, another package for construction. >> okay. >> we were expecting to do this below grade package work and all of that? >> oh, yes. >> absolutely. >> the next package in that $500,80 million plus. >> i couple of questions. i realize this is a structural, but is there any recycled content specified in the concrete? >> this is construction, it is not a recycle clause and we have that in the excavation, demolition and removal. >> we are not taking anything out. >> i am talking about the specification for the concrete that you are putting in. >> there is specified what we call free ash which is a

recycled material, yes. but you have to be careful how much you... you put in too much it is difficult to get a decent set on the concrete. yes, there is not in the rebar. it is not recycled from overseas. >> okay. >> i would not recommend that. >> right. >> the two subcontracts that you are going to bring in under shimmick, was it the intent all along to do that? the geothermal and the electrical? >> yes, those contracts have already been awarded to web core. at web core and to shimmick and so shimmick can manage their work along with the small subcontract. >> if that was the intent is there a reason why they were done in advance separately. >> yes, the geothermal and

grounding work will actually be starting in the next few, in the next month or so. >> okay. >> they had to get all of their shop drawings submitals and everything in and approved without delay. so, we did it that way rather than having a period when there might be no work happening. as soon as we get to the bottom and we get the micropiles in, we want to start work. to get the bottom mapped in as soon as possible. you don't want an excavation this depth left open for six months or so. >> that makes sense. >> and finally, with regard to the bids, the report was, did a very good job of explaining why they came in higher, than expect and what is happening with the market for some of the commodities that are involved here. two questions, related. what do you think accounts for the large range and the three bids that you got?

and then second, does the trend that we are seeing, with this package, any cause for concern or are we thinking about the super structure package and beyond in terms of the budget or us estimates that we currently have. >> i will take the first part trying not to confuse. >> the first part, we had three bids, the actual range and you say large, the high bid was contractor on-site who made a bid. out of the questions that we got out of the bidding period, if there were 500 questions, he asked 490 of them. i think that he was trying to fight off the other contract but it didn't work. i am being as frank as i can in a public meeting. i was disappointed with that bid after all the contractor on site should have been competitive. the other bid in the middle was

very competitive. except they made a mistake. he actually cut his bid $10 million in the last minute but wrote in the wrong numbers. the addition came to $11 million, and he was actually only $1 million above. but people who do these 24th last hour bids can make mistakes over the phone. and the number one, 11 is the correct addition if you took the number that he wrote in it was just a million dollars over. it was very competitive and if i had to recommend the other contract. >> and i have got the best bid at the best price. >> okay. >> in terms of the feature of the projects the costs of escalating. >> the next bid to come out, there is a series to come out. but the next big one is the structural steel contract it has very little concrete in it.

there are some concrete on the steel deckings. it is not large quantities that will stretch the market here at all. there is very little rebar in that. such that we have... i think that it is six, qualified bidders, and one of them said that he is dropping out because the others are too well established on the west coast and he came from the east coast. but we still got five very good bidders and they are keen on it. the work it has... it is not... it is a different material. most of the buildings or not all of them, maybe all of the buildings that we are see there are reinforced concrete buildings. the structural steel building will be the... it will be left will be well after ours and it is everything going right. >> okay. >> but, the medium sized building and those are all reinforced concrete. but, yes, obviously one takes

concern while working with the designers to try to make some big costs of steel and those and this is we are trying to get the system down as easy as possible and working hard, in fact, to get the designs that are easier to build to bring the price down and it will be looking even on the bid. i may have to negotiate some negative change orders if we can come to an agreement to build things easier. >> thank you. >> any more questions? >> seeing none, thank you. >> okay. >> no members of the public indicated that they want to address on that item. >> will you take roll call on this item. >> approval? >> sorry. >> second? >> second. >> with that director lloyd. >> aye. >> metcalf. >> aye. >> reiskin. >> aye. ortiz. >>ee. kim, aye. and that is five aye and item

seven is approved. item number 8. authorizing the executive director to ex-skaout the amendment number five to the agreement for professional design and construction administration services for the transit center building and related structures with the pelli clark pelli architects to increase the additional services amount by $14,014,222... >> directors probably two years ago we gave a presentation, director kim had just joined us on the design of the transit center and what work we had done to date. since that time, we have progressed quite a bit on the design of the station. and i would like to have bob beck give an update on all of the work that we have done to date on this item. thank you. >> thank you. director and members of the board. bob beck, and maria said two years ago we completed 50

percent construction documents package, that was around the same time that the board authorized the funding to go to the bottom, up construction and incorporate the train box and we were going through a lot of enter advantage with the high speed rail and california high speed rail on how to adapt the rail levels for their operations and so those changes were in process at that time and we have done a lot more work with both those operators and the other operators since that time. as well as worked with the design team, some peer review. and we wanted to bring you an update on all of those changes that have occurred over that time frame. >> so, as i mentioned, the time of the 50 percent construction documents we were incorporating the plans for the train box extension in phase two into the drawings and we have further refined the layout of the

platforms, the upper image on the screen that you see, where we were at at that time. since that time, we moved the platforms to the northern side of the train box. and modified the shape of the train box slightly to eliminate some conflicts with existing development. but, we are going to be able to support cal train and high speed rails operations in this configuration. the rail concourse level actually has gone through even more comprehensive refinement with the train box extension, we have now moved program support spaces for high speed rail and cal train from the west end of the station to the east end of the station over this time period, the operators came to realize that they would need to have a paid passenger boundary, so we have modified

and relocated the bicycle program and some of the other programs at the rail level or the rail concourse level. the changes coming out of the discussions with high speed rail also had an impact on the bus ramps and you have seen an update on this before, but just wanted to remind how the modification and the radius coming from second street into the station had impacted the bus ramps. so that we had to go from a via duct structure which had a relatively short cantilever, and when that extended we were no longer able to expand that distance with a via duct-type of structure and so we have moved to the cable state ramp that will cross howard street and enter the station. working with cal train on the

project engineering studies, we have had a number of other smaller refinements to the gee omty of the ramps and the connection of the freemont street off-ramp that we brought in over the course of the past two years and we will be making further modifications there at that far southern end of the ramp where we connect with the big rich. also, working with ac transit, we have done some refinement on the bus, deck layout. how it will function both operatallies and geometrickly to accompany, or to provide for all of the ac transit lots as well as the other operators west at mine treasure island and amtrak and greyhound operations that will be at the bus deck level and where we can provide floater spaces so that if a bus arrives ahead of schedule before, previously

schedule bus has departed we have the lowgys cal ability to accommodate those changes and schedule around the bus deck. we also had our fourth field study, where we went to ac transit's staging yard in hayward and laid out a portion of the bus deck, this time we were focused more on operational issues. so we laid out a portion of the bus deck and we were focused on the access in and out of the base. but also, contingentcy plans for bus break downs and other things that occur. and so ac transit brought one of their towing vehicles out and actually towed a broken down bus around the bay,

configuration. both maneuvering around the bus and to make sure that there were no conflicts with the ceiling if they needed to tow a bus out of the bus deck. we also looked at the drive aisles. so if there is a bus broken down in the drive aisle and a bus stopped at the curb, where a bus be able to still make it through around the bus deck? and so, all of those logistics were tested out in this study. at the bus plaza, the ground level, we have done additional coordination with both the operators and golden gate transit and mta that are located here and also working with the mayor's office of disability on access flow and configuration. at the time that we did the 50 percent construction documents we knew that it was going to be at the two northern and two southern islands with the golden gate transit in the

middle. the operators have revised those so that golden gate has gone to the northern most drive aisle and uni will have the southern portions of the bus plaza. >> we also eliminated these exit stairwells here and shifted them to another quadrant so that we could clear up some of the circulation space through here for accessibility. and so the refined layout is as you see it here, now, again, with golden gate transit at the northern most island and mta, occupying the southern-most islands and that is... the layout is important. not only because for operational reasons, but, for coordinating the overhead cabin system for the buses that serve the bus island to make sure that as those buses enter the

plaza and make the maneuvers to come into the islands where they board passengers that they will be able to track and come into the bus boarding islands. >> on the structural system for the building, we have been working again, very closely with our structural and seismic review committee that is providing oversight for the structural design of the transit center, both as a peer reviewer to the tgpa but as a code consultant to the building inspection, reviewing our design. one of the big elements that we did in the past two years relative to this structural design was the full scale testing of some of the structural connections on the building. so we through the design team, contracted with the university of california at san diego and their seismic lab to do full

scale testing some of these of structural joints. the moment connections that we are using on this structure are unprecedented. there haven't been moment frames of this design and this scale tested before. so we have needed to do that to prove out how they will perform under seismic conditions. and this... these hydraulic lambs on the right side of the image actually lift and the press the beam putting the stress on the moment frame connection here. and after going through a four-percent rotation, you can see that there is some stress clusters but no yielding or permanent damage to the connection. and that is the range of motion that they took this through is twice the anticipated range of motion that we will have in the

maximum credible event for the transit center. the other element that we had tested is a cheer link which is a portion of the basket column system which is designed to accumulate and absorb the stresses in a seismic event and so you can see where that sheer link is in the basket column system. and this is a little bit of an exaggerated diagram, but meant to show how the movement of the basket columns and the structure along the length of the transit center would respond in an earthquake. and where that sheer length absorbs the stresses, so that that can be damaged and in a predictable manner and repaired following a seismic event. but that the transit center structure would not be compromised and we could remain operational. >> so, here is some photographs. >> we do have one question.

>> does that sheering link get replaced if it is damaged? >> yeah, in a maximum after a maximum credible dent you would want to repair that because there is some yielding as you can see in this diagram, but it is not yielding to the point of failure. and so, it is just, it is where you intend to accumulate those stresses and that will really only be in the 700-year type of event, 100-year, event, something less than magnitude 7 would not damage this. >> and is this vertical through the building? >> these are at the tops of the basket columns between the individual base, so this is kind of the most in that longitudinal motion along the length of the building, this is the location of the highest stress and so this was the designed location for these stresses to accumulate in a way that we could control them and

insure the survival and continued the operation of the facility with minor repairs following an event. >> did you say, continue, the area will be so visible, i mean it will not have to shut it down or anything like that? >> no. thank you for the question, because i wanted to say that we are, our structural and seismic review committee, four of the members also served on the review committee for the bay bridge and we are essentially designing it to the same level of performance, following a major event, we will be open for operations. we may need to do clean up and repairs, but the structure of the buildings and the critical building systems will not be compromised. >> the little round thing that you are talking about that will need to be replaced not because the structure or damage of that but because it will become weak, i guess.

>> the fact that you need to replace it does not... >> it does not compromise the safety and it is a repair that you make over the long term. >> so here you see, those, sheer in tests where, i am sorry. you can see the range of deflection that they put on that beam so that this is far beyond the range of the flexion that you anticipate a seismic event but they wanted to stress the system beyond what the performance that is expected have to show in the field. some other revisions on the structural system. the light column as it meets the ground hard floor. we had had kind of an elevated, raised little skylight there at

the ground level. and that has been converted to a flat, glazed floor. to open up the grand hall for broader circulation and signify the connections between the light column and the ground slab we also have brought on a consultant, cast connects for the detaining of the nodes and prepare preliminary shop drawings for the super structure package that we will be putting out later this year. to really do the detailing of how those cast nodes will connect to the steel beam columns above them as well as to the tube steel that forms the basket columns. so by doing the additional detailing now, we are working

out potential conflicts with the architectal systems that meet up with the cast nodes as well as giving a better set of documents to the perspective steel fa bri caters so that when they are working at the foundry, they can have more accurate pricing and take a lot of risk out of the bid. >> we have also had others take a look at the center, these are examples of storefronts that they looked at as potential examples of the ground level retail at the west end of the station and how to provide visibility for that as well as outdoor, seating areas that we will have along the pedestrian mall. as well as potential retail examples for the second level of the station. where we are going to have more of a food court and food hall

type of arrangement. >> so, based on their recommendations we have made quite a few changes to the ground level and the mezzanine level and here you can see the layout of those spaces at the 50 percent construction document level. and there were a number of things that we wanted to incorporate. one is to really provide much better pedestrian circulation through the building from north to south as well as more access between the mezzanine level and the ground level. one thing about the mezzanine level at the time of the 50 percent documents we had the space program in what we called quadrant b. here, that was back of house program, and based on the recommendations we moved those programs over above the bus

plaza and relocated the programs from the west, over to the west end consolidating it over to a way that will work more effectively. so that the revised levels are depicted here. and this incorporates a second loading dock that we rounded on the street just to serve the retail functions and allowing the primary loading dock to provide service for most of the other building functions and the custodial services. and as i mentioned additional pass throughs from north to south providing greater circulation through the area and greater visibility as well as providing some variation in the storefront edges so that you can have greater visibility

when someone looks from first street or from second street. they will have a better angle on the types of amenities that are available going down minute, or atom. >> these are just elevations of the way that that is going to look along natoma street and minute street. with the pass-throughs, the large alley opening. >> and another thing that we really wanted to do, the retail consultants wanted us to do was provide a better relationship between our circulation and the plaza here at 555 mission, which is going to be a natural way for people to access, the transit center. so by opening up this pedestrian passage way provides a better connection to the surrounding community. >>