California Department of Transportation
 

Contract 10-481004

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) The Nov. 29 bid date is only the 2nd day after the Thanksgiving holiday. Bids this close to major holidays result in fewer subcontractor quotes. We request a bid date postponement of 1 week.

A1) The bid date will not be postponed. 25Oct11.


Q2)Please provide a Hazardous Materials Survey for Asbestos and Lead Based Paint for the existing bridge.

A2) Refer to the "Site Investigation Report" added to the Information Handout by Addendum No. 1, dated November 17, 2011. 21Nov11.


Q3)Is lead abatement required on the existing bridge steel girders where torch cutting will occur?.

A3) Yes, refer to Section 10-1.35, "Existing Highway Facilities," subsection "Existing Paint Systems" of the special provisions: "Prior to starting work, the Contractor shall submit a debris containment and collection program ...for debris produced when the existing paint system is disturbed." 26Oct11.


Q4)Where can I find as-built or contract drawings for existing Bridge No. 39-0130R/L? The Supplemental Project Information in Special Provisions suggest that as-builts are available as specified in the Standard Specification. Can you direct me to them?

A4) Refer to Section 2-1.03B "Supplemental Project Information" in the Amendments to the Standard Specifications: "If bridge as-built drawings are available: 1. For a project in District 1 through 6 or 10, you may request them from the Office of Structure Maintenance and Investigations, fax (916) 227-8357." 8Nov11.


Q5) Note 1 on Plan sheet 191 of 221 suggest that existing "Piles to remain except where in conflict with 78" O.D. CIDH Piling..." What type of piling (quantity, size and depth) is under the existing bridge structure?

A5) Information on existing piling is available from the bridge as-built drawings. Refer to Section 2-1.03B "Supplemental Project Information" in the Amendments to the Standard Specifications: "If bridge as-built drawings are available:

1. For a project in District 1 through 6 or 10, you may request them from the Office of Structure Maintenance and Investigations, fax (916) 227-8357." 15Nov11.


Q6) Can Rumble Strip (Item 68) be ground-in in lieu of rolled-in?

A6) The Contractor may propose the ground-in method for consideration by the Engineer. If the substitution is approved, an adjustment to the bid item is made by Contract Change Order. 23Nov11.


Q7) Referring to Special Provision Section 10-1.51 (CONCRETE STRUCTURES), and plan sheet 170 and 174 of 221, is the top slab support system(lost deck) still in place, and can it be inspected for usability?

A7) It is not known if the top slab support system (lost deck) is still in place or its current condition. No inspections of existing facilities will be permitted prior to the award of contract. 21Nov11.


Q8) Referring to Special Provision Section 10-1.16 (TEMPORARY SUPPORTS), and plan sheets 158 & 180 of 221, are the factored (1.5) Dead Loads and 20 psf live load enough force to produce the desired pre-built upward deflection of the existing bridge, or does this need to be engineered also?

A8) Refer to Note 2 on Sheet 180 of the plans. Please submit your bid to conform to the current contract documents. 18Nov11.


Q9) Please provide a spec for bid item #106 Chain Link Fnec (Type CL-6).

A9) Refer to Section 80-4, "Chain Link Fence," of the Standard Specifications. Refer also to Section 80-4.01C in the Amendments to the Standard Specifications. 17Nov11.


Q10) Please provide a spec for Chain Link Railing.

A10) Refer to Section 83-1.02I "Chain Link Railing" of the Standard Specifications and Standard Plan B11-52, for "Chain Link Railing, Type 7." Refer also to Section 83-1.02I revised by the amended Standard Specifications. 15Nov11.


Q11) Are subcontractors required to obtain the Railroad Insurance that is explained in Section 13 starting on page 188?

A11) Yes, unless the Contractor (prime) insures its subcontractors, subcontractors are required to obtain railroad insurance as specified in Section 13-1.08 "INSURANCE AND ENDORSEMENTS" of the Special Provisions. 23Nov11.


Q12) Cna you please provide As-Builts for the following structures on this project? 155-186 15th STREET UC (WIDEN) Br No. 39-0139 187-221 EAST MERCED OH (REPLACE) Br No. 39-0241

A12) Refer to Question 4. As-built drawings for bridges may be obtained by request from the Office of Structure Maintenance and Investigations, fax (916) 227-8357. 21Nov11.


Q13) Referring to Special Provision Section 10-1.22 (MAINTAIN TRAFFIC), sheet 187 of 221, Plan sheet for the East Merced Overhead (Replace), shows (2) 12 ft. lanes at 16th St. running in both directions. However the false work traffic openings on page 99 (SP), require one 32 ft. traffic opening. The stage traffic plans donít address 16th St. openings. Please clarify.

A13) Refer to Section 10-1.22 "MAINTAINING TRAFFIC" of the Special Provisions revised by Addendum No. 2, dated November 23, 2011. The Roadway Plans should be referenced for traffic handling and detours; Structure Plans are for structure purposes only. 23Nov11.


Q14) The railroad insurance requirements contained in Section 13-1.08(A), 13-1.08(B), 13-1.08(D) have very high limits of insurance (from $5 Million to $10 Million limits). These limits are not typical for most Subcontractors. Will the stated insurance policy limits be required of all Subcontractors performing work on this project? (These limits are very expensive for subcontractors to obtain because typically there is a minimum required premium)

A14) Yes, any contractor working on or adjacent to the Railroad's property must comply with the railroad insurance requirements in Section 13-1.08 "INSURANCE AND ENDORSEMENTS" of the Special Provisions. If the Contractor (prime) insures its subcontractors, the subcontractors do not need to carry railroad insurance. 22Nov11.


Q15) The railroad insurance requirements contained in Section 13-1.08(F) requires Pollution Liability Insurance with a policy limit of $5 Million per occurrence and $10 Million aggregate limits. Will the pollution liability insurance be required for Subcontractors working on this project and if required, will Subcontractors be required to carry $5 Million and $10 Million limits? (These limits are very expensive for subcontractors to obtain because typically there is a minimum required premium)

A15) Yes, any contractor working on or adjacent to the Railroad's property must comply with the railroad insurance requirements in Section 13-1.08 "INSURANCE AND ENDORSEMENTS" of the Special Provisions. If the Contractor (prime) insures its subcontractors, the subcontractors do not need to carry railroad insurance. 22Nov11.


Q16) Item 13-1.08(H) requires "Subcontractors to endorse their commercial General Liability Policy with "Contractural Liabilty Railroads"... Typically Subcontractors will add a railroad endorsement to their general liability insurance policy with the same limits as their current GL policy. Will Subcontractors need to raise their General liability and Auto limits to the higher $10 Million limits as stated in other parts of Section 13? (These limits/endorsements are very expensive for subcontractors to obtain because typically there is a minimum required premium)

A16) Yes, any contractor working on or adjacent to the Railroad's property must comply with the railroad insurance requirements in Section 13-1.08 "INSURANCE AND ENDORSEMENTS" of the Special Provisions. If the Contractor (prime) insures its subcontractors, the subcontractors do not need to carry railroad insurance. 22Nov11.


Q17)Referring to Bid Items #3 (TEMPORARY SUPPORTS) AND # 101 (SLOPEPAVING CONCRETE), at the 15 St. Bridge (Existing), does this slope paving that gets removed for Temporary Supports placed at 1/4th points, get paid under Item #51 (BRIDGE REMOVAL, PORTION), and does the pour back of the slope paving get paid under Item #101 (SLOPE PAVING CONCRETE)? Please advise.

A17) Please refer to Addendum No. 2, dated November 23, 2011. Payment details for removing slope paving beyond the limits shown on the plans for the purpose of placing temporary supports, and replacing this slope paving, have been clarified in Addendum No. 2. 28Nov11.


Q18) Assuming the K-Rail placement for false work under the 15th and 16th St. false work openings, is this paid under Item #26 (TEMPORARY RAILING , TYPE K), what are the transverse and longit. locations and what are the lengths of K-Rail runs. Also, what is the allowable working hours for this work at the 16th St. Bridge?

A18) Yes, refer to Section 12-4.01 "MEASUREMENT AND PAYMENT" in Section 12, "CONSTRUCTION AREA TRAFFIC CONTROL DEVICES," of the Standard Specifications: When the Engineer's Estimate includes a contract item for temporary railing (Type K), the temporary railing (Type K) will be measured by the linear foot along the top of the railing, at each location shown on the plans, specified, or ordered by the Engineer." Refer to the lane requirement and closure charts in Section 10-1.22 "MAINTAINING TRAFFIC" of the special Provisions for hours of work. 21Nov11.


Q19) Referring to Item #26 (TEMPORARY RAILING, TYPE K), do the K-Rail placed on the bridges have to be pinned down?

A19) Refer to Note 4 on Standard Plan T3, "Temporary Railing (Type K)." 28Nov11.


Q20)The gravel bag berm Item is paid by LF. So if the gravel bag berm is increased in height how will the added gravel bags be paid for?

A20) Only the length of the gravel bag berm will be measured for payment. Refer to Section 10-1.12 "TEMPORARY GRAVEL BAG BERM" of the Special Provisions. Refer also to New Standard Plan NSP T62 "Temporary Water Pollution Control Details" (Sheet 141 of the plans) for details of gravel bag berm and its configuration. 21Nov11.


Q21) Whould it be based on the LF of the base bags or of the LF of each gravel bag?

A21) Refer to "Measurement and Payment" in Section 10-1.12: "Temporary gravel bag berm is measured by the linear foot along the centerline of the installed berm." 21Nov11.


Q22) Who wil deside if the gravel bag berm will need to be increased in height and how is it desided?

A22) Section 10-1.12 states, "The SWPPP must describe and include the use of temporary gravel bag berm as a water pollution control practice for sediment control." Therefore, the Contractor will determine the height(s) necessary for the specific placement of gravel bag berms as linear sediment barriers in their proposed SWPPP. The Engineer approves the SWPPP. 21Nov11.


Q23) Referring to pg 121 of the Special Provisions (BRIDGE REMOVAL), and plan sheets 35, 36, and 191 of 221, plan sheet 191 (BRIDGE REMOVAL) shows existing bridge footings being completely removed. As utility drawings on sheets 35 and 36 show phone lines, a Kinder Morgan HP 12Ē dia. Oil line within 2 ft of these existing footing and the Union Pacific RR within 4 ft. Since the bottom of these footings are approx. 10 ft below OG, except for existing footings that conflict with the CIDH pile, can the columns be removed 1 ft. below OG or 3 ft below Finished Grade per Section 15-4.02 of the Standard Specs (2006)?

A23) No, the limits of removal of columns and footings shall be as shown on the plans. 22Nov11.


Q24)Utility Plan Sheet (35) shows fiber optic lines clear away from the CIDH Piles @ Bent 3 while Plan sheet (193) shows the fiber optic lines in line with Bent 3. Which is the correct and accurate location of fiber optic lines? Please confirm fiber optic lines will be relocated and not conflict with CIDH locations.

A24) The Contractor must refer to the Utility Plans (Sheets 34-37 of the plans) for Utility locations. The Utility Plans are accurate for utilities only. 22Nov11.


Q25) Where can I find a copy of the Contractor's Right of Way Agreement between the Railroad and the State?

A25) Refer to Section 13-1.01 "GENERAL (RAILROAD RELATIONS AND INSURANCE)" of the Special Provisions. A copy of the right of entry agreement between the State and the Railroad will be provided to "the Contractor" after award and approval of the Contract. 22Nov11.


Q26) In obtaining Railroad Insurance Quotes for this project, please provide number of freight trains counts per day.

A26) No additional information will be provided. 22Nov11.


Q27) Plan Sheet 180 of 221 requires a temporary support bent at the 1/2 point of Span 2 which puts it in the 32 foot wide vehicle opening. Please clarify this conflict.

A27) Please refer to Addendum No. 2, dated November 23, 2011. The falsework opening table for East Merced OH (Bridge No. 39-0241) has been modified as noted in the Addendum. 28Nov11.


Q28) Sheet 40 (SC-2) indicates shoulder occuring during Stage 1, Phase 1 will take place behind k-rail but the Sheet 71 (TH-1) does not show any k-rail in this location. Please provide a traffic handling plan showing k-rail as indicated on sheet 40 or at least confirm that the shoulder widening work will infact take place behind k-rail.

A28) Refer to the Construction note for Stage 1, Phase 1 construction on Plan Sheet SC-2 (sheet 40 of the plans). Partial shoulder reconstruction (see Sheet X-1) of the outside shoulders where shown on the plan is for support of traffic for Stage 1, Phase 2 construction. No traffic handling plan is necessary for this work. 28Nov11.


Q29) The Stage Construction's "Stages/Phases" do not match with the Traffic Handling Plan's "Stages/Phases". Please provide plan documents that corresponds with each other.

A29) For Stage Construction sequence, the bidder must refer to the Stage Construction plans. "SC" sheets are accurate for Stage Construction only. For Traffic Handling information, the bidder must refer to Traffic Handling plans, "TH" sheets are accurate for Traffic Handling only. 28Nov11.