California Department of Transportation

Contract 10-0U9004

The responses to bidder's inquiries, unless incorporated into a formal addendem to the contract, are not a part of the contract and are provided for the bidder's convenience only. In some instances, the question and answer may represent a summary of the matters discussed rather than a word-for-word recitation. The availability or use of information provided in the responses to bidder's inquiries is not to be construed in any way as a waiver of the provisions of Section 2-1.03 of the Standard Specifications or any other provision of the contract, the plans, Standard Specifications or Special Provisions, nor to excuse the contractor from full compliance with those contract requirements. Bidders are cautioned that subsequent responses or contract addenda may affect or vary a response previously given.

Q1) Spec Section 10-1.15 HMA Construction of Vertical Joints, pg 52 states to place RHMA-G on adjacent traveled way lanes so that at the end of the day all lanes are pulled up to within 10'. Would it be acceptable to pave one lane and shoulder as long as on the following day the adjacent lane is pulled to within 10'. With a very thin lift of rubber and a 1 mile lane closure restriction contractors will have to pave a lane, shift traffic, pull the other side, move the lane closure ahead and keep paving same lane and then flop traffic again to match the adjacent lane. This is not only inneficient and creates a potential for a volitile product to expire waiting for lane shifts, it increases the potential of accidents by shifting traffic closurs at least 4 times in one day. The above method will save the state money, time and is much safter. The .08' vertical joint exposed for 1 day is far below the .15' which is often allowed on projects. ?

A1) No, RHMA (Gap Graded) shall be placed as stated in "Construction," in Section 10-1.16 "RUBBERIZED HOT MIX ASPHALT (GAP GRADED)" of the Special Provisions, and maximum lane closure lengths shall be one mile, as stated in Section 10-1.06 "MAINTAINING TRAFFIC." 8Apr11.