California Department of Transportation

Contract 06-447704

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) Are Cross Sections available on this project?

A1) Cross-sections are available at MJ's CopyCats located at 5096 N. BLYTHE AVE #115 FRESNO, CA 93722. (559) 271-7848

Q2) Detail B on sheet 7 clearly shows misc. AC under the Barrier. Detail A does not show AB or AC under the Barrier. Per the standard plans, AB or AC is required under the Barrier. Can you clarify what type of material will be placed under the barrier, its thickness and how it will be paid for

A2) Per the layout sheet L-3, 0.33' of AC is to be used as the base material from station 14+60 to 17+80. From station 10+00 to 14+60, the base material shall be 0.33' of AC beneath the barrier as well. Cost for base material beneath the barrier shall be considered as included in the payment per lineal foot of the concrete barriers type 60, type 60C and type 60C (Mod).01Mar10

Q3) On sheet 52, the plans show temporary shoring to construct the retaining wall. Will it be accpetable to use soil nails and shotcrete and leave it in place when no longer needed?

A3) Please see Addendum No 1 Dated Feb 26, 2010: supplemental Geotechnical Information and the SSP language. Plans for temporary shoring and proposed construction method for retaining wall construction shall be submitted, reviewed and approved by the Engineer. Temporary shoring utilizing soil nails is not recommended. In addition, any shoring is to be temporary and not left in place. 01Mar10

Q4) Is a soils report available for this project?

A4) Please refer to Addendum No. 1 dated February 26, 2010. 26Feb10

Q5) Why is there no proposed grade from back of concrete barrier to existing on the cross sections?

A5) The bidder's question is in reference to the bidders cross sections in relation to the plans. The bidder is referring to the "A" LINE CROSS SECTION (bidder's cross sections). These bidder's cross sections show only the roadway widening work up to the RW LOL. To view the retaining wall portion of work, refer to the RET WALL CROSS SECTIONS of the bidder's cross sections. 26Feb10

Q6) On the typical cross sections it shows a fill required from the HP to the tie-in point of existing grade, On the cross sections it shows a cut. Can you please clarify?

A6) See A5 above. 26Feb10

Q7) What is the purpose of splitting the stages for the construction of the wall? It seems that if the contractor was able to install the krail at the ETW they would have better access to construct the wall, thus the State would saving money. Therefore, can the krail be installed on the ETW in lieu of installing it in two stages?

A7) The construction of the retaining wall and the portion of roadway immediately adjacent to the retaining wall was staged to provide maximum existing shoulder width for the longest period of time during construction of the project and to allow for continued use by the travelling public. As such, construction staging must occur as shown in the plans. 03Mar10

Q8) It appears on sheet 52 the temporary shoring is needed to preserve the existing landscape. On Caltrans project 06-0E9704, adjacent to this project, there are no restrictions on removing the same landscape area. Would it be acceptable to remove the landscape/irrigation as long as it was replaced?

A8) Please see Addendum No. 1 dated February 26, 2010 regarding supplemental Geotechnical information. Temporary shoring is required. Existing landscape shall be preserved. 04Mar10

Q9) Will any conflicts or delays, such as site access, staging, traffic control, etc. that occur between this project and Caltrans projet 06-0E9704 be considered a change in conditions?

A9) Please see section 7-1.14 Cooperation of the Standard Specifications. The above mentioned would not constitute a change in conditions. 04Mar10

Q10) Plans show scuppers for 60C Mod, Are they required in the 60 and 60C areas?

A10) No. 05Mar10

Q11) On sheet 17 of 119 the plan view detail the type 1A retaining wall stopping at the sides of the pedestal. However, the drawing depicts the retaining wall continuing accross the width of the pedestal. Section A-A depicts the pedestal to take the place of the retaining wall. What is the intent of the plans?

A11) The pedestal does take the place of the retaining wall. See sheet 71 of 119 (sheet R-1). The start/stop limits of the pedestal and retaining wall are defined. 09Mar10

Q12) Retaining wall cross sections show a structure that resembles the parapet wall from station 16+84.00 to station 17+08.00. The plan view on sheet 17 of 119 shows the parapet wall extending approximately 11' each way from the center of the proposed CIDH pile. What are the beginning and ending stations of the parapet wall?

A12) Parapet Wall limits are from 16+84 to 17+08 as depicted in the bidder's cross-sections. 09Mar10

Q13) Retaining wall cross sections from station 16+86.00 to station 17+08.00 show the gutter to be offset from the retaining wall with another structure filling the area between them. Is this correct? If so, what is the structure (including details) filling the area between the retaining wall and gutter?

A13) Sheet 17 of 119 calls for a 3" thick concrete slab which is basically a minor concrete sidewalk placed directly on the backfilled embankment behind retaining wall and pedestal. No other details are necessary. 09Mar10

Q14) At station 15+20.424 on Sheet 71 of 119 the plan view portion calls for a Return Wall Type B. At station 32+00.00 on sheet 75 of 119 the plan view cals for a Return Wall Type A. Whith respect to Standard Plan B3-8, what are the "L" and "D" dimensions of these walls?

A14) For the Return Wall at station 15+20.424, the "L" dimension = 8.0 ft; "D" dimension = 2.7 ft. For the Return Wall at station 32+00, the "L" dimension = 6.33 ft, "D" dimension = 1.5 ft. 09Mar10

Q15) Specifications indicate that there is supposed to be an item for "Time Related Overhead". Can not find a bid item for this. Will you be issuing an addendum with a revised Bid Schedule?

A15) Please see Addendum No. 2 Dated March 8, 2010. 09Mar10