Development Team Meeting Notes (96-99)

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~ ITEM 3: SteeVConcrete j There was discussion around whether to design the structure with steel or concre e. The cost of materials is almost identical, but it would cost an additional $SOOk to fireproof steel. This is a direct shell cost savings. Leonard pointed out that there are some pros and cons to concret vs. steel. We are dealing with a seismic 3 zone. Steel has always considered best for dealin with seismic conditions. There are new concrete techniques can deal with it. The noise level and ibrations from transit buses running through the center of the building need to be considered. B increasing the mass, vibration is dampened and noise is reduced. On that basis, Leonard suggests hat we would be better off with concrete structure. Steel allows for bounce with a certain amou t of deflection built into the structure. Vibrations can be felt throughout the building. Most of these vibrations will translate down through the parking structure, but the walls around the space will s ill conduct the noise. It was noted that vibrations and noise will make the building unattractive t tenants. It is critical that the building minimizes noise and vibration in the office space. Th re was further discussion around whether we had to go with only one, or if both could be inco orated. Curt suggested there is some economy savings by using concrete. , Randy said that this discussion has defined what we need out of the building and w are relying on the architect to advise us as to what would be the best materials. We are looking fo the best price that meets the defined performance standards. i Decision: Concrete II~ I Curt asked for discussion around waterproofing the concrete in the parking structure. II~, He stated that there is no practical reason to do this. '~, Decision: further investigation ITEM 5: Fifth Floor Dan distributed a summary of the fifth floor option (see attached). The net cost of th fifth floor, as it relates to transit, is a savings of $79k. The savings for the county is $400k. The ost of parking will increase by $600k. The parking cost does not decrease, but the cost per stall is igher because they will have to excavate a deeper hole. This will take out a lane of traffic from t street during the excavation process. Dan is still exploring some issues around parking. With a ingle level we are not at 345 - 355 parking spaces, we are at 332. This will increase by 13 with t e new atrium design. The parking structure may not be adequate for the four-floor design. Aside om the market issue, Dan stated that there may be a be a code issue. RG said that there is no ode regarding downtown parking. You can build a building without parking in the downtown area. Dan said that there are still some options to explore. The current design is to the property line not the curb. Leonard explained we are permitted to go to the curb, but the code says that you have i o sign off that you will give it back if the city should want to do something with the curb area. I ACTION: Dan will give Randy more information on Friday. It was asked if Dan buys the air space if he puts on a fifth floor, what does this do to ~he percentage ~ and how would this be put into the contract to assure FTA that he is not going to buil in that space.