City Council Agenda and Packet 1976 09 07

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it 1� 1 � �� 4 I. '�# 4 .l '1., t. 4 ,yea .� �S • - . 1�'...y+y" // 14l'L �.t ,� p. 'ea r�� M-t�• •.-3.•' T•�'�.t� "' MIAMI=SPICIAL MUM MINIM - _ 1 y f r_WAIST Mayor Mischak called the special meeting to order at 7:30 P11 with the following Council members : Domenico, Caramel, DLLoreneo. ,r DiCarlo, McDonald and . Meyer Weschak informed Council that the special meeting was to award the bid for the water tank. Mc. Does Hobbs of lucky Mountain Consultants distributed a summery of the bid opening, a letter from the low bidder, Western Empire Con- structors, Inc. , and a summery as to what has happened up to date. He also reviewed with Council the different alternates on the tank and noted that the low bid from Wester Empire Constructors, Inc. was $492,691, per the engineers plans and specifications. Mc. Hobbs stated that since all bids exceeded the proposed budget and the engineers estimates, yocky Wfocntain Consultants has been mocking with Western Empire Constructors, Inc. , to ascertain from than what they mould build the prestressed alternate for if a different system and foundation was constructed. Basically what has been considered is; removing the caissons, over excavating under the tank 3 feet, backfilling with 2.5 foot of gr awl and .5 foot of sand and laying • post tension slab on that. Uoderdrain piping would be added to that system to keep the sub surface area free of water. He stated that from bid schedule #1, the staff looked at matins the excess excavation material on the site of the Lafayette land. The last change identified, is adding some post tensioning to allow for any differential settlement, raising the residual compression from 250 PSI to PSI PSI. This would be an addition to the cost. Mr. Hobbs stated that he has looked at several tanks that Western Empire Constructor, Inc. , has built in the Denver area. He stated that with the changes the bid Domes down to $4$1,191. to do the work that is called for ie the original contract documents de- ducting the westing materials and for the painting of the facility. Mr. Hobbs stated that they have considered the different alternates which would provide the best possible system for the City and his recommendation was that the bid in the amount of $421,575, from Western Empire Constructors, Inc., be approved, as it also stays within the city's budget. Councilman DelPisso stated that if this is an all concrete tank, it is very such different than whet was first decided upon. He felt the plans were altered drastically. Mr. Wurl stated that it was Councils wish to call for bids on all the different alternatives.